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                                                                    EXHIBIT 10.4


                   AMERICAN INDUSTRIAL REAL ESTATE ASSOCIATION

             STANDARD INDUSTRIAL/COMMERCIAL SINGLE-TENANT LEASE--NET

                (DO NOT USE THIS FORM FOR MULTI-TENANT BUILDINGS)


1.   BASIC PROVISIONS ("BASIC PROVISIONS")

     1.1 PARTIES: This Lease ("Lease"), dated for reference purposes only JUNE
4, 1999 , is made by and between W.F. BATTON & CO., INC., A CALIFORNIA
CORPORATION ("LESSOR") and WIRELESS, INC., A CALIFORNIA CORPORATION, AND
MOMENTUM LASER, INC., A CALIFORNIA CORPORATION ("LESSEE"), collectively the
"PARTIES" or individually a "PARTY").

     1.2 PREMISES: That certain real property, including all improvements
therein or to be provided by Lessor under the terms of this Lease, and commonly
known as 5452 BETSY ROSS DRIVE, SANTA CLARA , located in the County of SANTA
CLARA , State of CALIFORNIA , and generally described as (describe briefly the
nature of the property and, if applicable, the "PROJECT", if the property is
located within a Project) A PARCEL OF LAND CONTAINING 3.71 ACRES, MORE OR LESS,
WITH A BUILDING CONTAINING APPROXIMATELY 54,800 SQUARE FEET MORE PARTICULARLY
DESCRIBED ON EXHIBIT "A" ATTACHED HERETO ("PREMISES"). (Se also Paragraph 2)

     1.3 TERM: SEVEN (7) years and 0 months ("ORIGINAL TERM") commencing AUGUST
1, 1999 ("COMMENCEMENT DATE") and ending JULY 31, 2006 (SEE ADDENDUM (EXPIRATION
DATE"). (See also Paragraph 3)

     1.4 EARLY POSSESSION: N/A PARAGRAPH 52(A)) ("EARLY POSSESSION DATE" ). (See
also Paragraphs 3.2 and 3.3) Paragraph 50)

     1.5 BASE RENT: $ SEE ADDENDUM per month ("BASE RENT"), payable on the FIRST
day of each month commencing AUGUST 1, 1999 (See also Paragraph 4) [ ] If this
box is checked, there are provisions in this Lease for the Base Rent to be
adjusted.

     1.6 BASE RENT PAID UPON EXECUTION: $ 73,980 as Base Rent for the period
AUGUST 1, 1999.

     1.7 SECURITY DEPOSIT: $(SEE ADDENDUM PARAGRAPH 51) ("SECURITY DEPOSIT").
(See also Paragraph 5)

     1.8 AGREED USE: MANUFACTURING, STORAGE,DISTRIBUTION AND ASSEMBLY OF
COMPUTER RELATED PRODUCTS (See also Paragraph 6)

     1.9 INSURING PARTY. Lessor is the "INSURING PARTY" unless otherwise stated
herein. (See also Paragraph 8)

     1.10 REAL ESTATE BROKERS: (See also Paragraph 15)

          (a) REPRESENTATION: The following real estate brokers (collectively,
the "BROKERS") and brokerage relationships exist in this transaction (check
applicable boxes):

[XX] WAYNE MASCIA ASSOCIATES represents Lessor Exclusively ("LESSOR'S BROKER");

[XX] COLLIERS PARRISH represents Lessor exclusively ("LESSOR'S
     BROKER"); or [ ]represents both Lessor and Lessee ("DUAL AGENCY").

          (b) PAYMENT TO BROKERS: upon execution and delivery of this Lease by
both Parties, Lessor shall pay to the Broker the fee agreed to in their separate
written agreement (or if there is no such agreement, the sum of N/A % of the
total Base Rent for the brokerage services rendered by said Broker).

     1.11 GUARANTOR. The obligations of the Lessee under this Lease are to be
guaranteed by N/A ("GUARANTOR"). (See also Paragraph 37)

     1.12 ADDENDA AND EXHIBITS. Attached hereto is an Addendum or Addenda
consisting of Paragraphs 50 through 57 and Exhibits "A" LEGAL AND "B" TENANT;
IMPROVEMENTS, AND "B-2" FLOOR PLAN, AND "C" LESSEE'S HAZARDOUS MATERIALS, all of
which constitute a part of this Lease.

2. PREMISES.

     2.1 LETTING. Lessor hereby leases to Lessee, and Lessee hereby leases from
Lessor, the Premises, for the term, at the rental, and upon all of the terms,
covenants and conditions set forth in this Lease. Unless otherwise provided
herein, any statement of size set forth in this Lease, or that may have been
used in calculating rental, is an approximation which the Parties agree is
reasonable and the rental based thereon is not subject to revision whether or
not the actual size is more or less.

     2.2 CONDITION. Lessor shall deliver the Premises to Lessee broom clean and
free of debris on the Commencement Date (See Addendum Paragraph 52) ("Start
Date"), and so long as the required service contracts described in Paragraph
7.1(b) below are obtained by Lessee within thirty (30) days following the Start
Date, warrants that the existing electrical plumbing, fire sprinkler, lighting,
heating, ventilating and air conditioning systems ("HVAC"), loading doors, if
any, and all other such elements in the Premises, other than those constructed
by Lessee, shall be in good operating condition on said date and that the
structural elements of the roof, bearing walls and foundation of any buildings
on the Premises (the "BUILDING") shall be free of material defects, if a
non-compliance with said warranty exists as of the Start Date, Lessor shall, as
Lessor's sole obligation with respect to such matter, except as otherwise
provided in this Lease, promptly after receipt of written notice from Lessee
setting forth with specificity the nature and extent of such non-compliance,
rectify same at Lessor's expense. If, after the Start Date, Lessee does not give
Lessor written notice of any non-compliance with this warranty within: (i) one
year as to the surface of the roof and the structural portions of the roof,
foundations and bearing walls, (ii) six (6) months as to the HVAC systems, (iii)
thirty (30) days as to the remaining systems and other elements of the Building,
correction of such non-compliance shall be the obligation of Lessee at Lessee's
sole cost and expense.

     2.3 COMPLIANCE. Lessor warrants that the improvements on the Premises
comply with all applicable laws, covenants or restrictions of record, building
codes, regulations and ordinances ("APPLICABLE REQUIREMENTS") in effect on the
Start Date. Said warranty does not apply to the use to which Lessee will put the
Premises or to any Alterations or Utility Installations (as defined in Paragraph
7.3(a)) made or to be made by Lessee. NOTE: Lessee is responsible for
determining whether or not the zoning is appropriate for Lessee's intended use,
and acknowledges that past uses of the Premises may no longer be allowed. If the
Premises do not comply with said warranty, Lessor shall, except as otherwise
provided, promptly after receipt of written notice from Lessee setting forth
with specificity the nature and extent of such non-compliance, rectify the same
at Lessor's expense, If Lessee does not give Lessor written notice of a
non-compliance with this warranty within six (6) months following the Start
Date, correction of that non-compliance shall be the obligation of Lessee at
Lessee's sole cost and expense.

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     2.4 ACKNOWLEDGEMENTS. Lessee acknowledges that: (a) it has been advised by
Lessor and/or Brokers to satisfy itself with respect the condition of the
Premises (including but not limited to the electrical, HVAC and fire sprinkler
systems, security, environmental aspects, and compliance with Applicable
Requirements), and their suitability for Lessee's intended use, (b) Lessee has
made such investigation as it deems necessary with reference to such matters and
assumes all responsibility therefor as the same relate to its occupancy of the
Premises, and (c) neither Lessor, Lessor's agents, nor any Broker has made any
oral or written representations or warranties with respect to said matters other
than as set forth in this Lease. In addition, Lessor acknowledges that: (a)
Broker has made no representations, promises or warranties, concerning Lessee's
ability to honor the Lease or suitability to occupy the Premises, and (b) it is
Lessor's sole responsibility to investigate the financial capability and/or
suitability of all proposed tenants.

3.   TERM.

     3.1 TERM. The Commencement Date. Expiration Date and Original Term of this
Lease are as specified in Paragraph 1.3.

     3.3 DELAY IN POSSESSION. Lessor agrees to use its best commercially
reasonable efforts to deliver possession of the Premises to Lessee by the
Commencement Date. If, despite said efforts. Lessor is unable to deliver
possession as agreed, Lessor shall not be subject to any liability therefor, nor
shall such failure affect the validity of this Lease. Lessee shall not, however,
be obligated to pay Rent or perform its other obligations until it receives
possession of the Premises. If possession is not delivered within sixty (60)
days after the Commencement Date, Lessee may, at its option, by notice in
writing within ten (10) days after the end of such sixty (60) day period, cancel
this Lease, in which event the Parties shall be discharged from all obligations
hereunder. If such written notice is not received by Lessor within said ten (10)
day period, Lessee's right to cancel shall terminate. Except as otherwise
provided, if possession is not tendered to Lessee by the Start Date and LessXX
does not terminate this Lease, as aforesaid, any period of rent abatement that
Lessee would otherwise have enjoyed shall run from the date of delivery of
possession and continue for a period equal to what Lessee would otherwise have
enjoyed under the terms hereof, but minus a XXX days of delay caused by the acts
or omissions of Lessee. If possession of the Premises is not delivered within
four (4) months after the Commencement Date, this Lease shall terminate unless
other agreements are reached between Lessor and Lessee, in writing.

     3.4 LESSEE COMPLIANCE. Lessor shall not be required to tender possession of
the Premises to Lessee until Lessee complies with the obligation to provide
evidence of insurance (Paragraph 8.5). Pending delivery of such evidence, Lessee
shall be required to perform all of the obligations under this Lease from and
after the Start Date, including the payment of Rent, notwithstanding Lessor's
election to withhold possession pending receipt of such evidence of insurance.
Further, if Lessee is required to perform any other conditions prior to or
concurrent with the Start Date, the Start Date shall occur but Lessor may elect
to withhold possession until such conditions are satisfied.

4. RENT.

     4.1. RENT DEFINED. All monetary obligations of Lessee to Lessor under the
terms of this Lease (except for the Security Deposit) are deemed to be rent
("Rent").

     4.2 PAYMENT. Lessee shall cause payment of Rent to be received by Lessor in
lawful money of the United States, without offset deduction (except as
specifically permitted in this Lease), on or before the day on which it is due.
Rent for any period during the term hereXX which is for less than one (1) full
calendar month shall be prorated based upon the actual number of days of said
month. Payment of Rent shall be made to Lessor at its address stated herein or
to such other persons or place as Lessor may from time to time designate in
writing. Acceptance of a payment which is less than the amount then due shall
not be a waiver of Lessor's rights to the balance of such Rent, regardless of
Lessor's endorsement of any check so stating.

5. SECURITY DEPOSIT. Lessee shall deposit with Lessor upon execution hereof the
Security Deposit as security for Lessee's faithful performance of its
obligations under this Lease. If Lessee fails to pay Rent, or otherwise Defaults
under this Lease, Lessor may use, apply retain all or any portion of said
Security Deposit for the payment of any amount due Lessor or to reimburse or
compensate Lessor for any liability expense, loss or damage which Lessor may
suffer or incur by reason thereof. If Lessor uses or applies all or any portion
of said Security Deposit, Lessee shall within ten (10) days after written
request therefor deposit monies with Lessor sufficient to restore said Security
Deposit to the XXX amount required by this Lease. If the Base Rent Increases
during the term of this Lease, Lessee shall, upon written request from Lessor,
deposit additional moneys with Lessor so that the total amount of the Security
Deposit shall at all times bear the same proportion to the increased Base Rent
as the initial Security Deposit bore to the initial Base Rent. Lessor shall not
be required to keep the Security Deposit separate form its general accounts.
Within fourteen (14) days after the expiration or termination of this Lease. If
Lessor elects to apply the Security Deposit only to unpaid Rent, and otherwise
within thirty (30) days after the Premises have been vacated pursuant to
Paragraph XXX below, Lessor shall return that portion of the Security Deposit
not used or applied by Lessor. No part of the Security Deposit shall be
considered to be held in trust, to bear interest or to be prepayment for any
monies to be paid by Lessee under this Lease.

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6.   USE.

     6.1 USE. Lessee shall use and occupy the Premises only for the Agreed Use,
or any other legal use which is reasonably comparable thereto, and for no other
purpose. Lessee shall not use or permit the use of the Premises in a manner that
is unlawful, creates damage, waste or a nuisance, or that disturbs owners and/or
occupants of, or causes damage to neighboring properties. Lessor shall not
unreasonably withhold or delay its consent to any written request for a
modification of the Agreed Use, so long as the same will not impair the
structural integrity of the improvements on the Premises or the mechanical or
electrical systems therein, is not significantly more burdensome to the
Premises. If Lessor elects to withhold consent, Lessor shall within fifteen (15)
days after such request give written notification of same, which notice shall
include an explanation of Lessor's objections to the change in use.

     6.2 HAZARDOUS SUBSTANCES.

         a) REPORTABLE USES REQUIRE CONSENT. The term "HAZARDOUS SUBSTANCE" as
used in this Lease shall mean any product, substance, or waste whose presence,
use, manufacture, disposal, transportation, or release, either by itself or in
combination with other materials expected to be on the Premises, is either: (i)
potentially injurious to the public health, safety or welfare, the environment
or the Premises, (ii) regulated or monitored by any governmental authority, or
(iii) a basis for potential liability of Lessor to any governmental agency or
third party under any applicable statute of law theory. Hazardous Substances
shall include, but not be limited to, hydrocarbons, petroleum, gasoline, and/or
crude oil or any products, by-products or fractions thereof. Lessee shall not
engage in any activity in or on the Premises which constitutes a Reportable Use
of Hazardous Substances without the express prior written consent of Lessor and
timely compliance (at Lessee's expense) with all Applicable Requirements.
"Reportable Use" shall mean (i) the installation or use of any above or below
ground storage tank, (ii) the generation, possession, storage, use,
transportation, or disposal of a Hazardous Substance that requires a permit
from, or with respect to which a report, notice, registration or business plan
is required to be filed with any governmental authority, and/or (iii) the
presence at the Premises of a Hazardous Substance with respect to which any
Applicable Requirements requires that a notice be given to persons entering or
occupying the Premises or neighboring properties. Notwithstanding the foregoing,
Lessee may use any ordinary and customary materials reasonably required to be
used in the normal course of the Agreed Use, so long as such use is in
compliance with all Applicable Requirements, is not a Reportable Use, and does
not expose the Premises or neighboring property to any meaningful risk of
contamination or damage or expose Lessor to any liability therefor. In addition,
Lessor may condition its consent to any Reportable Use upon receiving such
additional assurances as Lessor reasonably deems necessary to protect itself,
the public, the Premises and/or the environment against damage, contamination,
injury and/or liability, including, but not limited to, the installation (and
removal on or before Lease expiration or termination) of protective
modifications (such as concrete encasements) and/or increasing the Security
Deposit.

         (b) DUTY TO INFORM LESSOR. If Lessee knows, or has reasonable cause to
believe, that a Hazardous Substance has come to be located in, on, under or
about the Premises, other than as previously consented to by Lessor, Lessee
shall immediately give written notice of such fact to Lessor, and provide Lessor
with a copy of any report, notice, claim or other documentation which it has
concerning the presence of such Hazardous Substance.

         (c) LESSEE REMEDIATION. Lessee shall not cause or permit any Hazardous
Substance to be spilled or released in, on, under, or about the Premises
(including through the plumbing or sanitary sewer system) and shall promptly, at
Lessee's expense, take all investigatory and/or remedial action reasonably
recommended, whether or not formally ordered or required, for the cleanup of any
contamination of, and for the maintenance, security and/or monitoring of the
Premises or neighboring properties, that was caused or materially contributed to
by Lessee, or pertaining to or involving any Hazardous Substance brought onto
the Premises during the term of this Lease, by or for Lessee, or any related
third party.

         (d) LESSEE INDEMNIFICATION. Lessee shall indemnify, defend and hold
Lessor, its agents, employees, lenders and ground lessor, if any, harmless from
and against any and all loss of rents and/or damages, liabilities, judgments,
claims, expenses, penalties, and attorneys' and consultants' fees arising out of
or involving any Hazardous Substance brought onto the Premises by or for Lessee,
or any related third party (provided, however, that Lessee shall have no
liability under this Lease with respect to underground migration of any
Hazardous Substance under the Premises from adjacent properties). Lessee's
obligations shall include, but not be limited to, the effects of any
contamination or injury to person, property or the environment created or
suffered by Lessee, and the cost of investigation, removal, remediation,
restoration and/or abatement, and shall survive the expiration or termination of
this Lease. NO TERMINATION, CANCELLATION OR RELEASE AGREEMENT ENTERED INTO BY
LESSOR AND LESSEE SHALL RELEASE LESSEE FROM ITS OBLIGATIONS UNDER THIS LEASE
WITH RESPECT TO HAZARDOUS SUBSTANCES, UNLESS SPECIFICALLY SO AGREED BY LESSOR IN
WRITING AT THE TIME OF SUCH AGREEMENT.

         (e) LESSOR INDEMNIFICATION. Lessor and its successors and assigns shall
indemnify, defend, reimburse and hold Lessee, its employees and lenders,
harmless from and against any and all environmental damages, including the cost
of remediation, which existed as a result of Hazardous Substances on the
Premises prior to the Start Date or which are caused by the gross negligence or
willful misconduct of Lessor, its agents or employees. Lessor's obligations, as
and when required by the Applicable Requirements, shall include, but not be
limited to, the cost of investigation, removal, remediation, restoration and/or
abatement, and shall survive the expiration or termination of this Lease.

         (f) INVESTIGATIONS AND REMEDIATIONS. Lessor shall retain the
responsibility and pay for any investigations or remediation measures required
by governmental entities having jurisdiction with respect to the existence of
Hazardous Substances on the Premises prior to the Start Date, unless such
remediation measure is required as a result of Lessee's use (including
"Alterations", as defined in paragraph 7.3(a) below) of the Premises, in which
event Lessee shall be responsible for such payment. Lessee shall cooperate fully
in any such activities at the request of Lessor, including allowing Lessor and
Lessor's agents to have reasonable access to the Premises at reasonable times in
order to carry out Lessor's investigative and remedial responsibilities.

         (g) LESSOR TERMINATION OPTION. If a Hazardous Substance Condition
occurs during the term of this Lease, unless Lessee is legally responsible
therefor (in which case Lessee shall make the investigation and remediation
thereof required by the Applicable Requirements and this Lease shall continue in
full force and effect, but subject to Lessor's rights under Paragraph 6.2(d) and
Paragraph 13), Lessor may, at Lessor's option, either (i) investigate and
remediate such Hazardous Substance Condition, if required, as soon as reasonably
possible at Lessor's expense, in which event this Lease shall continue in full
force and effect, or (ii) if the estimated cost to remediate such condition
exceeds twelve (12) times the then monthly Base Rent or $100,000, whichever is
greater, give written notice to Lessee, within thirty (30) days after receipt by
Lessor of knowledge of the occurrence of such Hazardous Substance Condition, of
Lessor's desire to terminate this Lease as of the date sixty (60) days following
the date of such notice. In the event Lessor elects to give a termination
notice, Lessee may, within ten (10) days thereafter, give written notice to
Lessor of Lessee's commitment to pay the amount by which the cost of the
remediation of such Hazardous Substance Condition exceeds an amount equal to
twelve (12) times the then monthly Base Rent or $100,000, whichever is greater,
Lessee shall provide Lessor with said funds or satisfactory assurance thereof
within thirty (30) days following such commitment. In such event, this Lease
shall continue in full force and effect, and Lessor shall proceed to make such
remediation as soon as reasonably possible after the required funds are
available. If Lessee does not give such notice and provide the required funds or
assurance thereof within the time provided, this Lease shall terminate as of the
date specified in Lessor s notice of termination.

     6.3 LESSEE'S COMPLIANCE WITH APPLICABLE REQUIREMENTS. Except as otherwise
provided in this Lease, Lessee shall, at Lessee sole expense, fully, diligently
and in a timely manner, materially comply with all Applicable Requirements, the
requirements of any applicable fire insurance underwriter or rating bureau, and
the recommendations of Lessor's engineers and/or consultants which relate in any
manner to the Premises, without regard to whether said requirements are now in
effect or become effective after the Start Date. Lessee shall, within ten (10)
days after receipt of Lessor's written request, provide Lessor with copies of
all permits and other documents, and other information evidencing Lessee's
compliance with any Applicable Requirements specified by Lessor, and shall
immediately upon receipt, notify Lessor in writing (with copies of any documents
involved) of any threatened or actual claim, notice, citation, warning,
complaint or report pertaining to or involving the failure of Lessee or the
Premises to comply with any Applicable Requirements.

     6.4 INSPECTION; COMPLIANCE. Lessor and Lessor's "Lender" (as defined in
Paragraph 30 below) and consultants shall have the right to enter into Premises
at any time, in the case of an emergency, and otherwise at reasonable times, for
the purpose of inspecting the condition of the Premises and for verifying
compliance by Lessee with this Lease. The cost of any such inspections shall be
paid by Lessor, unless a violation of Applicable Requirements, or a
contamination is found to exist or be imminent, or the inspection is requested
or ordered by a governmental authority. In such case, Lessee shall upon request
reimburse Lessor for the cost of such inspections, so long as such inspection is
reasonably related to the violation or contamination (See Addendum Paragraph 53)

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7.   MAINTENANCE, REPAIRS, UTILITY INSTALLATIONS, TRADE FIXTURES AND
     ALTERATIONS.

     7.1 LESSEE'S OBLIGATIONS. (See Addendum Paragraph 54)

          (a) IN GENERAL. Subject to the provisions of Paragraph 2.2
(Condition), 2.3 (Compliance), 6.3 (Lessee's Compliance with Applicable
Requirements), 7.2 (Lessor's Obligations), 9 (Damage or Destruction), and 14
(Condemnation), Lessee shall, at Lessee's sole expense, keep the Premises,
Utility Installations, and Alterations in good order, condition and repair
(whether or not the portion of the Premises requiring repair or the means of
repairing the same, are reasonably or readily accessible to Lessee, and whether
or not the need for such repairs occurs as a result of Lessee's use, any prior
use, the elements or the age of such portion of the Premises), including, but
not limited to, all equipment, facilities, such as plumbing, heating,
ventilating, air-conditioning, electrical, lighting facilities, boilers,
pressure vessels, fire protection system, fixtures, walls (interior and
exterior), foundations, ceilings, roofs, floors, windows, doors, plate glass,
skylights, landscaping, driveways, parking lots, fences, retaining walls, signs,
sidewalks and parkways located in, on, or adjacent to the Premises. Lessee, in
keeping the Premises in good order, condition and repair, shall exercise and
perform good maintenance practices, specifically including the procurement and
maintenance of the service contracts required by Paragraph 7.1(b) below.
Lessee's obligations shall include restorations, replacements or renewals when
necessary to keep the Premises and all improvements thereon or a part thereof in
good order, condition and state of repair. Lessee shall, during the term of this
Lease, keep the exterior appearance of the Building in a first-class condition
consistent with the exterior appearance of other similar facilities of
comparable age and size in the vicinity, including, when necessary, the exterior
repainting of the Building.

         (b) SERVICE CONTRACTS. Lessee shall, at Lessee's sole expense, procure
and maintain contracts, with copies to Lessor, in customary form and substance
for, and with contractors specializing and experienced in the maintenance of the
following equipment and improvements ("Basic Elements"), if any, if and when
installed on the Premises: (i) HVAC equipment, (ii) boiler, and pressure
vessels, (iii) fire extinguisher systems, including fire alarm and/or smoke
detection, (iv) landscaping and irrigation systems, (v) roof covering and
drains, (vi) driveways and parking lots, (vii) clarifiers (viii) basic utility
feed to the perimeter of the Building, and (ix) any other equipment, if
reasonably required by Lessor.

          (c) REPLACEMENT. Subject to Lessee's indemnification of Lessor as set
forth in Paragraph 8.7 below, and without relieving Lessee of liability
resulting from Lessee's failure to exercise and perform good maintenance
practices, if the Basic Elements described in Paragraph 7.1(b) cannot be
repaired other than at a cost which is in excess of 50% of the cost of replacing
such Basic Elements, then such Basic Elements shall be replaced by Lessor, and
the cost thereof shall be prorated between the Parties and Lessee shall only be
obligated pay, each month during the remainder of the term of this Lease, on the
date on which Base Rent is due, an amount equal to the product multiplying the
cost of such replacement by a fraction, the numerator of which is one, and the
denominator of which is the number of months the useful life of such replacement
as such useful life is specified pursuant to Federal income tax regulations or
guidelines for depreciation thereof (including interest on the unamortized
balance as is then commercially reasonable in the judgment of Lessor's
accountants), with Lessee reserving the right to prepay its obligation at any
time.

     7.2 LESSOR'S OBLIGATIONS. Subject to the provisions of Paragraphs 2.2
(Condition), 2.3 (Compliance), 9 (Damage or Destruction) and 14 (Condemnation),
it is intended by the Parties hereto that Lessor have no obligation, in any
manner whatsoever, to repair and maintain the Premises, or the equipment
therein, all of which obligations are intended to be that of the Lessee. It is
the intention of the Parties that the term of this Lease govern the respective
obligations of the Parties as to maintenance and repair of the Premises, and
they expressly waive the benefit of any statute now or hereafter in effect to
the extent it is inconsistent with the terms of this Lease.

     7.3 UTILITY INSTALLATIONS; TRADE FIXTURES; ALTERATIONS.

         (a) DEFINITIONS; CONSENT REQUIRED. The term "Utility Installations"
refers to all floor and window coverings, air lines, power panels, electrical
distribution, security and fire protection systems, communication systems,
lighting fixtures, HVAC equipment, plumbing, and fencing in or on the Premises.
The term "TRADE FIXTURES" shall mean Lessee's machinery and equipment that can
be removed without doing material damage to the Premises. The term "ALTERATIONS"
shall mean any modification of the improvements, other than Utility
Installations and Trade Fixtures, whether by addition or deletion. "LESSEE OWNED
ALTERATIONS AND/OR UTILITY INSTALLATIONS" are defined as Alterations and/or
Utility Installations made by Lessee that are not yet owned by Lessor pursuant
to Paragraph 7.4(a). Lessee shall not make any Alterations to Utility
Installations to the Premises without Lessor's prior written consent. Lessee
may, however, make non-structural Utility Installations to the interior of the
Premises (excluding the roof) without such consent but upon notice to Lessor, as
long as they are not visible from the outside, do not involve puncturing,
relocating or removing the roof or any existing walls, and the cumulative cost
thereof during this Lease as extended does not exceed $50,000 in the aggregate
or $10,000 in any one year.

         (b) CONSENT. Any Alterations or Utility Installations that Lessee shall
desire to make and which require the consent of the Lessee shall be presented to
Lessor in written form with detailed plans. Consent shall be deemed conditioned
upon Lessee's: (i) acquiring all applicable governmental permits, (ii)
furnishing Lessor with copies of both the permits and the plans and
specifications prior to commencement of the work and (iii) compliance with all
conditions of said permits and other Applicable Requirements in a prompt and
expeditious manner. Any Alterations or Utility Installations shall be performed
in a workmanlike manner with good and sufficient materials. Lessee shall
promptly upon completion furnish Lessor with as-built plans and specifications.

         (c) INDEMNIFICATION. Lessee shall pay, when due, all claims for labor
or materials furnished or alleged to have been furnished or for Lessee at or for
use on the Premises, which claims are or may be secured by any mechanic's or
materialmen's lien against the Premises or any interest therein. Lessee shall
give Lessor not less than ten (10) days' notice prior to the commencement of any
work in, on or about the Premises, and Lessor shall have the right to post
notices of non-responsibility. If Lessee shall contest the validity of any such
lien, claim or demand, then Lessee shall, at its sole expense defend and protect
itself. Lessor and the Premises against the same and shall pay and satisfy any
such adverse judgment that may be rendered thereon before the enforcement
thereof. If Lessor shall require, Lessee shall furnish a surety bond in an
amount equal to one and one-half times the amount of such contested lien, claim
or demand, indemnifying Lessor against liability for the same, if Lessor elects
to participate in any such action, Lessee shall pay Lessor's attorneys' fees and
costs.

     7.4 OWNERSHIP; REMOVAL; SURRENDER; AND RESTORATION.

         (a) OWNERSHIP. Subject to Lessor's right to require removal or elect
ownership as hereafter provided, all Alterations and Utility Installations made
by Lessee shall be the property of Lessee, but considered a part of the
Premises. Lessor may, at any time, elect in writing to be the owner of all or
any specified part of the Lessee Owned Alterations and Utility Installations.
Unless otherwise instructed per Paragraph 7.4 (b) hereof, all Lessee Owned
Alterations and Utility Installations shall, at the expiration or termination of
this Lease, become the property of Lessor and be surrendered by Lessee with the
Premises.

         (b) REMOVAL. By delivery to Lessee of written notice from Lessor not
earlier than ninety (90) and not later than thirty (30) days prior to the end of
the term of this Lease. Lessor may require that any or all Lessee Owned
Alterations or Utility Installations be removed by the expiration or termination
of this Lease if Landlord requires removal as part of its consent. Lessor may
require the removal at any time of all or any part of any Lessee Owned
Alterations or Utility installations made without the required consent.

         (c) SURRENDER/RESTORATION. Lessee shall surrender the Premises by the
Expiration Date or any earlier termination date, with all the improvements,
parts and surfaces thereof broom clean and free of debris, and in good operating
order, condition and state of repair, ordinary wear and tear excepted. Ordinary
wear and tear shall not include any damage or deterioration that would have been
prevented by good maintenance practice. Lessee shall repair any damage
occasioned by the installation, maintenance or removal of Trade Fixtures, Lessee
Owned Alterations and/or Utility installations, furnishings, and equipment as
well as the removal of any storage tank installed by or for Lessee, and the
removal, replacement, or remediation of any soil, material or groundwater
contaminated by Lessee. Trade Fixtures shall remain the property Lessee sand
shall be removed by Lessee. The failure by Lessee to timely vacate the Premises
pursuant to this Paragraph 7.4(c) without the express written consent of Lessor
shall constitute a holdover under the provisions of Paragraph 26 below.

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8.   INSURANCE: INDEMNITY.

     8.1 PAYMENT FOR INSURANCE. Lessee shall pay for all insurance required
under Paragraph 8 except to the extent of the cost attributable to liability
insurance carried by Lessor under Paragraph 8.2(b) in excess of $2,000,000 per
occurrence. Premiums for policy periods commencing prior to or extending beyond
the Lease term shall be prorated to correspond to the Lease term. Payment shall
be made by Lessee to Lessor within ten (10) days following receipt of an
invoice.

     8.2 LIABILITY INSURANCE.

        (a) CARRIED BY LESSEE. Lessee shall obtain and keep in force a
Commercial General Liability Policy of Insurance protecting Lessee and Lessor
against claims for bodily injury, personal injury and property damage based upon
or arising out of the ownership, use, occupancy or maintenance of the Premises
and all areas appurtenant thereto. Such insurance shall be on an occurrence
basis providing single limit coverage in an amount not less than $2,000,000 per
occurrence with an "ADDITIONAL INSURED-MANAGERS OR LESSORS OF PREMISES
ENDORSEMENT" and contain the "AMENDMENT OF THE POLLUTION EXCLUSION ENDORSEMENT"
for damage caused by heat, smoke or fumes from a hostile fire. The Policy shall
not contain any intra-insured exclusions as between insured persons or
organizations, but shall include coverage for liability assumed under this Lease
as an "insured contract" for the performance of Lessee's indemnity obligations
under this Lease. The limits of such insurance shall not, however, limit the
liability of Lessee nor relieve Lessee of any obligation hereunder. All
insurance carried by Lessee shall be primary to and not contributory with any
similar insurance carried by Lessor, whose insurance shall be considered excess
insurance only.

         (b) CARRIED BY LESSOR. Lessor shall maintain liability insurance as
described in Paragraph 8.2(a), in addition to, and not lieu of, the insurance
required to be maintained by Lessee. Lessee shall not be named as an additional
insured therein.

     8.3 PROPERTY INSURANCE - BUILDING, IMPROVEMENTS AND RENTAL VALUE.

          (a) BUILDING AND IMPROVEMENTS. The Insuring Party shall obtain and
keep in force a policy or policies in the name of Lessor, with loss payable
to Lessor, any groundlessor, and to any Lender(s) insuring loss or damage
to the Premises. The amount of such insurance shall be equal to the full
replacement cost of the Premises, as the same shall exist from time to
time, or the amount required by any Lenders, but in no event more than the
commercially reasonable and available insurable value thereof. If Lessor is
the Insuring Party, however, Lessee Owned Alterations and Utility
Installations, Trade Fixtures, and Lessee's personal property shall be
insured by Lessee under Paragraph 8.4 rather than by Lessor. If the
coverage is available and commercially appropriate, such policy or policies
shall insure against all risks of direct physical loss or damage (except
the perils of flood and/or earthquake unless required by a Lender),
including coverage for debris removal and the enforcement of any Applicable
Requirements requiring the upgrading, demolition, reconstruction or
replacement of any portion of the Premises as the result of a covered loss.
Said policy or policies shall also contain an agreed valuation provision in
lieu of any coinsurance clause, waiver of subrogation, and inflation guard
protection causing an increase in the annual property insurance coverage
amount by a factor of not less than the adjusted U.S. Department of Labor
Consumer Price Index for All Urban Consumers for the city nearest to where
the Premises are located. If such insurance coverage has a deductible
clause, the deductible amount shall not exceed $1,000 per occurrence, and
Lessee shall be liable for such deductible amount in the event of an
Insured Loss.

          (b) RENTAL VALUE. The Insuring Party shall obtain and keep in force a
policy or policies in the name of Lessor with loss payable to Lessor and
any Lender, insuring the loss of the full Rent for one (1) year. Said
insurance shall provide that in the event the Lease is terminated by reason
of an insured loss, the period of indemnity for such coverage shall be
extended beyond the date of the completion of repairs or replacement of the
Premises, to provide for one full year's loss of Rent from the date of any
such loss. Said insurance shall contain an agreed valuation provision in
lieu of any coinsurance clause, and the amount of coverage shall be
adjusted annually to reflect the projected Rent otherwise payable by
Lessee, for the next twelve (12) month period. Lessee shall be liable for
any deductible amount in the event of such loss.

          (c) ADJACENT PREMISES. If the Premises are part of a larger building,
or of a group of buildings owned by Lessor which are adjacent to the
Premises, the Lessee shall pay for any increase in the premiums for the
property insurance of such building or buildings if said increase is caused
by Lessee's acts, omissions, use or occupancy of the Premises.

     8.4 LESSEE'S PROPERTY/BUSINESS INTERRUPTION INSURANCE.

         (a) PROPERTY DAMAGE. Lessee shall obtain and maintain insurance
coverage on all of Lessee's personal property, Trade Fixtures, and Lessee Owned
Alterations and Utility Installations. Such insurance shall be full replacement
cost coverage with a deductible of not to exceed $1,000 per occurrence. The
proceeds from any such insurance shall be used by Lessee for the replacement of
personal property, Trade Fixtures and Lessee Owned Alterations and Utility
Installations. Lessee shall provide Lessor with written evidence that such
insurance is in force.

         (b) BUSINESS INTERRUPTION. Lessee shall obtain and maintain loss of
income and extra expense insurance in amounts as will reimburse Lessee for
direct or indirect loss of earnings attributable to all perils commonly insured
against by prudent lessees in the business of Lessee or attributable to
prevention of access to the Premises as a result of such perils.

         (c) NO REPRESENTATION OF ADEQUATE COVERAGE. Lessor makes no
representation that the limits or forms of coverage of insurance specified
herein are adequate to cover Lessee's property, business operations or
obligations under this Lease.

     8.5 INSURANCE POLICIES. Insurance required herein shall be by companies
duly licensed or admitted to transact business in the state where the Premises
are located, and maintaining during the policy term a "General Policyholders
Rating" of at least B+, V, as set forth in the most current issue of "Best's
Insurance Guide", or such other rating as may be required by a Lender. Lessee
shall not do or permit to be done anything which invalidates the required
insurance policies. Lessee shall, prior to the Start Date, deliver to Lessor
certified copies of policies of such insurance or certificates evidencing the
existence and amounts of the required insurance. No such policy shall be
cancelable or subject to modification except after thirty (30) days prior
written notice to Lessor. Lessee shall, at least thirty (30) days prior to the
expiration of such policies, furnish Lessor with evidence of renewals or
"insurance binders" evidencing renewal thereof, or Lessor may order such
insurance and charge the cost thereof to Lessee, which amount shall be payable
by Lessee to Lessor upon demand. Such policies shall be for a term of at least
one year, or the length of the remaining term of this Lease, whichever is less.
If either Party shall fail to procure and maintain the insurance required to be
carried by it, the other Party may, but shall not be required to, procure and
maintain the same.

     8.6 WAIVER OF SUBROGATION. Without affecting any other rights or remedies,
Lessee and Lessor each hereby release and relieve the other, and waive their
entire right to recover damages against the other, for loss of or damage to its
property arising out of or incident to the perils required to be insured against
herein. The effect of such releases and waivers is not limited by the amount of
insurance carried or required, or by any deductibles applicable hereto. The
Parties agree to have their respective property damage insurance carriers waive
any right to subrogation that such companies may have against Lessor or Lessee,
as the case may be, so long as the insurance is not invalidated thereby.

     8.7 INDEMNITY. Except for Lessor's gross negligence or willful misconduct,
Lessee shall indemnify, protect, defend and hold harmless the Premises, Lessor
and its agents, Lessor's master or ground lessor, partners and Lenders, from and
against any and all claims, loss of rents and/or damages, liens, judgments,
penalties, attorneys' and consultants' fees, expenses and/or liabilities arising
out of, involving, or in connection with, the use and/or occupancy of the
Premises by Lessee. If any action or proceeding is brought against Lessor by
reason of any of the foregoing matters, Lessee shall upon notice defend the same
at Lessee's expense by counsel reasonably satisfactory to Lessor and Lessor
shall cooperate with Lessee in such defense. Lessor need not have first paid any
such claim in order to be defended or indemnified.

     8.8 EXEMPTION OF LESSOR FROM LIABILITY. Lessor shall not be liable for
injury or damage to the person or goods, wares, merchandise or other property of
Lessee. Lessee's employees, contractors, invitees, customers, or any other
person in or about the Premises, whether such damage or injury is caused by or
results from fire, steam, electricity, gas, water or rain, or from the breakage,
leakage, obstruction or other defects or pipes, fire sprinklers, wires,
appliances, plumbing, HVAC or lighting fixtures, or from any other cause,
whether the said injury or damage results from conditions arising upon the
Premises or upon other portions of the Building of which the Premises are a
part, or from other sources or places. Lessor shall not be liable for any damage
arising from any act or neglect of any other tenant of Lessor. Notwithstanding
Lessor's negligence or breach of this Lease, Lessor shall under no circumstances
be liable for injury to Lessee's business or for any loss of income or profit
therefrom.

9.   DAMAGE OR DESTRUCTION.

     9.1 DEFINITIONS.

          (a) "PREMISES PARTIAL DAMAGE" shall mean damage or destruction to the
improvements on the Premises, other than Lessee Owned Alterations and Utility
Installations, which can reasonably be repaired in 270 days or less from the
date of the damage or destruction.

                                     PAGE 5
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Lessor shall notify Lessee in writing within thirty (30) days from the date of
the damage or destruction as to whether or not the damage is Partial or Total.

          (b) "PREMISES TOTAL DESTRUCTION" shall mean damage or destruction to
the Premises, other than Lessee Owned Alterations and Utility Installations and
Trade Fixtures, which cannot reasonably be repaired 270 days or less from the
date of the damage or destruction. Lessor shall notify Lessee in writing within
thirty (30) days from the date of the damage or destruction as to whether or not
the damage is Partial or Total.

          (c) "INSURED LOSS" shall mean damage or destruction to improvements on
the Premises, other than Lessee Owned Alterations and Utility Installations and
Trade Fixtures, which was caused by an event required to be covered by the
insurance described in Paragraph 8.3(a) irrespective of any deductible amounts
or coverage limits involved.

         (d) "REPLACEMENT COST" shall mean the cost to repair or rebuild the
improvements owned of Lessor at the time of the occurrence to their condition
existing immediately prior thereto, including demolition, debris removal and
upgrading required by the operation of Applicable Requirements, and without
deduction for depreciation.

         (e) "HAZARDOUS SUBSTANCE CONDITION" shall mean the occurrence or
discovery of a condition involving the presence of, or a contamination by, a
Hazardous Substance as defined in Paragraph 6.2(a), in, on, or under the
Premises.

     9.2 PARTIAL DAMAGE - INSURED LOSS. If a Premises Partial Damage that is an
Insured Loss occurs, then Lessor shall, at Lessor's expense, repair such damage
(but not Lessee's Trade Fixtures or Lessee Owned Alterations and Utility
Installations) as soon as reasonably possible and this Lease shall continue in
full force and effect: provided, however, that Lessee shall, at Lessor's
election, make the repair of any damage or destruction the total cost to repair
of which is $10,000 or less, and, in such event, Lessor shall make any
applicable insurance proceeds available to Lessee on a reasonable basis for that
purpose. Notwithstanding the foregoing, if the required insurance was not in
force or the insurance proceeds are not sufficient to effect such repair, the
Insuring Party shall promptly contribute the shortage in proceeds (except as to
the deductible which is Lessee's responsibility) as and when required to
complete said repairs. In the event, however, such shortage was due to the fact
that, by reason of the unique nature of the improvements, full replacement cost
insurance coverage was not commercially reasonable and available, Lessor shall
have no obligation to pay for the shortage in insurance proceeds or to fully
restore the unique aspects of the Premises unless Lessee provides Lessor with
the funds to cover same, or adequate assurance thereof, within ten (10) days
following receipt of written notice of such shortage and request therefor. If
Lessor receives said funds or adequate assurance thereof within said ten (10)
day period, the party responsible for making the repairs shall complete them as
soon as reasonably possible and this Lease shall remain in full force and
effect. If such funds or assurance are not received, Lessor may nevertheless
elect by written notice to Lessee within ten (10) days thereafter to: (i) make
such restoration and repair as is commercially reasonable with Lessor paying any
shortage in proceeds, in which case this Lease shall remain in full force and
effect; or (ii) have this Lease terminate thirty (30) days thereafter. Lessee
shall not be entitled to reimbursement of any funds contributed by Lessee to
repair any such damage or destruction. Premises Partial Damage due to flood or
earthquake shall be subject to Paragraph 9.3, notwithstanding that there may be
some insurance coverage, but the net proceeds of any such insurance shall be
made available for the repairs if made by either Party

     9.3 PARTIAL DAMAGE - UNINSURED LOSS. If a Premises Partial Damage that is
not an Insured Loss occurs, unless caused by a negligence or willful act of
Lessee (in which event Lessee shall make the repairs at Lessee's expense),
Lessor may either: (i) repair such damage as soon as reasonably possible at
Lessor's expense, in which event this Lease shall continue in full force and
effect, or (ii) terminate this Lease by giving written notice to Lessee within
thirty (30) days after receipt by Lessor of knowledge of the occurrence of such
damage. Such termination shall be effective sixty (60) days following the date
of such notice. In the event Lessor elects to terminate this Lease, Lessee shall
have the right within ten (10) days after receipt of the termination notice to
give written notice to Lessor of Lessee's commitment to pay for the repair of
such damage without reimbursement from Lessor. Lessee shall provide Lessor with
said funds or satisfactory assurance thereof within thirty (30) days after
making such commitment. In such event this Lease shall continue in full force
and effect, and Lessor shall proceed to make such repairs a soon as reasonably
possible after the required funds are available. If Lessee does not make the
required commitment, this Lease shall terminate as of the date specified in the
termination notice.

     9.4 TOTAL DESTRUCTION. Notwithstanding any other provision hereof, if a
Premises Total Destruction occurs, this Lease shall terminate sixty (60) days
following such Destruction. If the damage or destruction was caused by the gross
negligence or willful misconduct of Lessee, Lessor shall have the right to
recover Lessor's damages from Lessee, except as provided in Paragraph 8.6.

     9.5 DAMAGE NEAR END OF TERM. If at any time during the last six (6) months
of this Lease there is damage for which the cost to repair exceeds one (1)
month's Base Rent, whether or not an Insured Loss, Lessor may terminate this
Lease effective sixty (60) days following the date of occurrence of such damage
by giving a written termination notice to Lessee within thirty (30) days after
the date of occurrence of such damage.

     9.6 ABATEMENT OF RENT; LESSEE'S REMEDIES.

         (a) ABATEMENT. In the event of Premises Partial Damage or Premises
Total Destruction or a Hazardous Substance Condition for which Lessee is not
responsible under this Lease, the Rent payable by Lessee for the period required
for the repair, remediation or restoration of such damage shall be abated in
proportion to the degree to which Lessee's use of the Premises is impaired. All
other obligations of Lessee hereunder shall be performed by Lessee, and Lessor
shall have no liability for any such damage, destruction, remediation, repair or
restoration except as provided herein.

     (b) REMEDIES. If Lessor shall be obligated to repair or restore the
Premises and does not commence, in a substantial and meaningful way, such repair
or restoration within ninety (90) days after such obligation shall accrue,
Lessee may, at any time prior to the commencement of such repair or restoration,
give written notice to Lessor and to any Lenders of which Lessee has actual
notice, of Lessee's election to terminate this Lease on a date not less than
sixty (60) days following the giving of such notice, if Lessee gives such notice
and such repair or restoration is not commenced within thirty (30) days
thereafter, this Lease shall terminate as of the date specified in said notice.
If the repair or restoration is commenced within said thirty (30) days, this
Lease shall continue in full force and effect. "COMMENCE" shall mean either the
unconditional authorization of the preparation of the required plans, or the
beginning of the actual work on the Premises, whichever first occurs.

     9.7 TERMINATION-ADVANCE PAYMENTS. Upon termination of this Lease pursuant
to Paragraph 6.2(g) or Paragraph 9, an equitable adjustment shall be made
concerning advance Base Rent and any other advance payments made by Lessee to
Lessor. Lessor shall, in addition, return to Lessee so much of Lessee's Security
Deposit as has not been, or is not then required to be, used by Lessor.

     9.8 WAIVE STATUTES. Lessor and Lessee agree that the terms of this Lease
shall govern the effect of any damage to or destruction the Premises with
respect to the termination of this Lease and hereby waive the provisions of any
present or future statute to the extent inconsistent herewith.

10.  REAL PROPERTY TAXES.

     10.1  DEFINITION OF "REAL PROPERTY TAXES. As used herein, the term "Real
Property Taxes" shall include any form of assessment real estate, general,
special, ordinary or extraordinary, or rental levy or tax other than
inheritance, personal income or estate taxes); improvement bond; and/or license
fee imposed upon or levied against any legal or equitable interest of Lessor in
the Premises. Lessor's right to other income therefrom, and/or Lessor's business
of leasing, by any authority having the direct or indirect power to tax and
where the funds are generated

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with reference to the Building address and where the proceeds so generated
are to be applied by the city, county or other local taxing authority of a
jurisdiction within which the Premises are located. The term "Real Property
Taxes" shall also include any tax, fee, levy, assessment or charge, or any
increase therein, imposed by reason of events occurring during the term of this
Lease, including but not limited to, a change in the ownership of the Premises.

     10.2

         (a) PAYMENT OF TAXES. Lessee shall pay the Real Property Taxes
applicable to the Premises during the term of this Lease. Subject to Paragraph
10.2(b), all such payments shall be made at least ten (10) days prior to any
delinquency date. Lessee shall promptly furnish Lessor with satisfactory
evidence that such taxes have been paid. If any such taxes shall cover any
period of time prior to or after the expiration or termination of this Lease,
Lessee's share of such taxes shall be prorated to cover only that portion of the
tax bill applicable to the period that this Lease is in effect, and Lessor shall
reimburse Lessee for any overpayment. If Lessee shall fail to pay any required
Real Property Taxes, Lessor shall have the right to pay the same, and Lessee
shall reimburse Lessor therefor upon demand.

         (b) ADVANCE PAYMENT. In the event Lessee incurs a late charge on any
Rent payment, Lessor may, at Lessor's option, estimate the current Real Property
Taxes, and require that such taxes be paid in advance to Lessor by Lessee,
either: (i) in a lump sum amount equal to the installment due, at least twenty
(20) days prior to the applicable delinquency date, or (ii) monthly in advance
with the payment of the Base Rent. If Lessor elects to require payment monthly
in advance, the monthly payment shall be an amount equal to the amount of the
estimated installment of taxes divided by the number of months remaining before
the month in which said installment becomes delinquent. When the actual amount
of the applicable tax bill is known, the amount of such equal monthly advance
payments shall be adjusted as required to provide the funds needed to pay the
applicable taxes. If the amount collected by Lessor is insufficient to pay such
Real Property Taxes when due, Lessee shall pay Lessor, upon demand, such
additional sums as are necessary to pay such obligations. All moneys paid to
Lessor under this Paragraph may be intermingled with other moneys of Lessor and
shall not bear interest. In the event of a Breach by Lessee in the performance
of its obligations under this Lease, then any balance of funds paid to Lessor
under the provisions of this Paragraph may at the option of Lessor, be treated
as an additional Security Deposit.

     10.3 JOINT ASSESSMENT. If the Premises are not separately assessed,
Lessee's liability shall be an equitable proportion of the Real Property Taxes
for all of the land and improvements included within the tax parcel assessed,
such proportion to be conclusively determined by Lessor from the respective
valuations assigned in the assessor's work sheets or such other information as
may be reasonably available.

     10.4  PERSONAL PROPERTY TAXES. Lessee shall pay, prior to delinquency, all
taxes assessed against and levied upon Lessee Owned Alterations, Utility
Installations, Trade Fixtures, furnishings, equipment and all personal property
of Lessee. When possible, Lessee shall cause such property to be assessed and
billed separately from the real property of Lessor. If any of Lessee's said
personal property shall be assessed with Lessor's real property, Lessee shall
pay Lessor the taxes attributable to Lessee's property within ten (10) days
after receipt of a written statement.

11. UTILITIES. Lessee shall pay for all water, gas, heat, light, power,
telephone, trash disposal and other utilities and services supplied to the
Premises, together with any taxes thereon. If any such services are not
separately metered to Lessee, Lessee shall pay a reasonable proportion, to be
determined by Lessor, of all charges jointly metered.

12. ASSIGNMENT AND SUBLETTING. (See Addendum Paragraph 55)

     12.1 LESSOR'S CONSENT REQUIRED.

         (a) Lessee shall not voluntarily or by operation of law assign,
transfer, mortgage or encumber (collectively, "ASSIGN OR ASSIGNMENT") or sublet
all or any part of Lessee's interest in this Lease or in the Premises without
Lessor's prior written consent.

         (b) A change in the control of Lessee shall constitute an assignment
requiring consent. The transfer, on a cumulative basis, of fifty percent (50%)
or more of the voting control of Lessee shall constitute a change in control for
this purpose.

         (d) An assignment or subletting without consent shall, at Lessor's
option, be a Default curable after notice per Paragraph 13.1(c), or a noncurable
Breach without the necessity of any notice and grace period. If Lessor elects to
treat such unapproved assignment or subletting as a noncurable Breach, Lessor
may either: (i) terminate this Lease, or (ii) upon thirty (30) days written
notice, increase the monthly Base Rent to one hundred ten percent (110%) of the
Base Rent then in effect. Further, in the event of such Breach and rental
adjustment, (i) the purchase price of any option to purchase the Premises held
by Lessee shall be subject to similar adjustment to one hundred ten percent
(110%) of the price previously in effect, and (ii) all fixed and non-fixed
rental adjustments scheduled during the remainder of the Lease term shall be
increased to One Hundred Ten Percent (110%) of the scheduled adjusted rent.

         (e) Lessee's remedy for any breach of Paragraph 12.1 by Lessor shall be
limited to compensatory damages and/or injunctive relief.

     12.2  TERMS AND CONDITIONS APPLICABLE TO ASSIGNMENT AND SUBLETTING,

         (a) Regardless of Lessor's consent, any assignment or subletting shall
not: (i) be effective without the express written assumption by such assignee or
sublessee of the obligations of Lessee under this Lease, (ii) release Lessee of
any obligations hereunder, or (iii) alter the primary liability of Lessee for
the payment of Rent or for the performance of any other obligations to be
performed by Lessee.

         (b) Lessor may accept Rent or performance of Lessee's obligations from
any person other than Lessee pending approval or disapproval of an assignment.
Neither a delay in the approval or disapproval of such assignment nor the
acceptance of Rent or performance shall constitute a waiver or estoppel of
Lessor's right to exercise its remedies for Lessee's Default or Breach.

         (c) Lessor's consent to any assignment or subletting shall not
constitute a consent to any subsequent assignment or subletting.

         (d) In the event of any Default or Breach by Lessee, Lessor may proceed
directly against Lessee, any Guarantors or anyone else responsible for the
performance of Lessee's obligations under this Lease, including any assignee or
sublessee, without first exhausting Lessor's remedies against any other person
or entity, responsible therefore to Lessor, or any security held by Lessor.

         (e) Each request for consent to an assignment or subletting shall be in
writing, accompanied by information relevant to Lessor's determination as to the
financial and operational responsibility and appropriateness of the proposed
assignee or sublessee, including but not limited to the intended use and/or
required modification of the Premises, if any (See Addendum Paragraph 55 (d))

         (f) Any assignee of, or sublessee under, this Lease shall, by reason of
accepting such assignment or entering into such sublease, be deemed to have
assumed and agreed to conform and comply with each and every term, covenant,
condition and obligation herein to be observed or performed by Lessee during the
term of said assignment or sublease, other than such obligations as are contrary
to or inconsistent with provisions or an assignment or sublease to which Lessor
has specifically consented to in writing.

     12.3 ADDITIONAL TERMS AND CONDITIONS APPLICABLE TO SUBLETTING. The
following terms and conditions shall apply to any subletting by Lessee of all or
any part of the Premises and shall be deemed included in all subleases under
this Lease whether or not expressly incorporated therein:

         (a) Lessee hereby assigns and transfers to Lessor all of Lessee's
interest in all Rent payable on any sublease, and Lessor may collect such Rent
and apply same toward Lessee's obligations under this Lease; provided, however,
that until a Breach shall occur in the performance of Lessee's obligations,
Lessee may collect said Rent. Lessor shall not, by reason of the foregoing or
any assignment of such sublease, nor by reason of the collection of Rent, be
deemed liable to the sublessee for any failure of Lessee to perform and comply
with any of Lessee's obligations to such sublessee. Lessee hereby irrevocably
authorizes and directs any such sublease, upon receipt of a written notice

                                     PAGE 7


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from Lessor stating that a Breach exists in the performance of Lessee's
obligations under this Lease, to pay to Lessor all Rent due and to become due
under the sublease. Sublessee shall rely upon any such notice from Lessor and
shall pay all Rents to Lessor without any obligation or right to inquire as to
whether such Breach exists, notwithstanding any claim from Lessee to the
contrary.

         (b) In the event of a Breach by Lessee, Lessor may, at its option,
require sublessee to attorn to Lessor, in which event Lessor shall undertake the
obligations of the sublessor under such sublease from the time of the exercise
of said option to the expiration of such sublease; provided, however, Lessor
shall not be liable for any prepaid rents or security deposit paid by such
sublessee to such sublessor or for any prior Defaults or Breaches of such
sublessor.

          (c) Any matter requiring the consent of the sublessor under a sublease
shall also require the consent of Lessor.

          (d) No sublessee shall further assign or sublet all or any part of the
Premises without Lessor's prior written consent.

          (e) Lessor shall deliver a copy of any notice of Default or Breach by
Lessee to the sublessee, who shall have the right to cure the Default of
Lessee within the grace period, if any, specified in such notice. The
sublessee shall have a right of reimbursement and offset from and against
Lessee for any such Defaults cured by the sublessee.

13. DEFAULT; BREACH; REMEDIES.

     13.1 DEFAULT; BREACH. A "Default" is defined as a failure by the Lessee to
comply with or perform any of the terms, covenants, conditions or rules under
this Lease. A "Breach" is defined as the occurrence of one or more of the
following Defaults, and the failure of Lessee to cure such Default within any
applicable grace period:

          (a) The abandonment of the Premises; or the vacating of the Premises
without providing a commercially reasonable level of security or where the
coverage of the property insurance described in Paragraph 8.3 is jeopardized as
a result thereof, or without providing reasonable assurances to minimize
potential vandalism.

          (b) The failure of Lessee to make any payment of Rent or any Security
Deposit required to be made by Lessee hereunder, whether to Lessor or to a third
party, when due, to provide reasonable evidence of insurance or surety bond, or
to fulfill any obligation under this Lease which endangers or threatens life or
property, where such failure continues for a period of three (3) business days
following written notice to Lessee.

          (c) The failure by Lessee to provide (i) reasonable written evidence
of compliance with Applicable Requirements, (ii) the service contracts, (iii)
the rescission of an unauthorized assignment or subletting, (iv) a Estoppel
Certificate, (v) a requested subordination, (vi) evidence concerning any
guaranty and/or Guarantor, (vii) any document requested under Paragraph 42
(easements), or (viii) any other documentation or information which Lessor may
reasonably require of Lessee under the terms of this Lease, where any such
failure continues for a period of ten (10) days following written notice to
Lessee.

          (d) A Default by Lessee as to the terms, covenants, conditions or
provisions of this Lease, or of the rules adopted under Paragraph 40 hereof,
other than those described in subparagraphs 13.1(a), (b) or (c), above, where
such Default continues for a period of thirty (30) days after written notice;
provided, however, that if the nature of Lessee's Default is such that more than
thirty (30) days are reasonably required for its cure, then it shall not be
deemed to be a Breach if Lessee commences such cure within said thirty (30) day
period and thereafter diligently prosecutes such cure to completion.

          (e) The occurrence of any of the following events: (i) the making of
any general arrangement or assignment for the benefit of creditors; (ii)
becoming a "debtor" as defined in 11 U.S.C. Section 101 or any successor statute
thereto (unless, in the case of a petition filed against Lessee, the same is
dismissed within sixty (60) days); (iii) the appointment of a trustee or
receiver to take possession of substantially all of Lessee's assets located at
the Premises or of Lessee's interest in this Lease, where possession is not
restored to Lessee within thirty (30) days; or (iv) the attachment, execution or
other judicial seizure of substantially all of Lessee's assets located at the
Premises or of Lessee's interest in this Lease, where such seizure is not
discharged within thirty (30) days; provided, however, in the event that any
provision of this subparagraph (e) is contrary to any applicable law, such
provision shall be of no force or effect, and not affect the validity of the
remaining provisions.

          (f) The discovery that any financial statement of Lessee or of any
Guarantor given to Lessor was materially false.

          (g) If the performance of Lessee's obligations under this Lease is
guaranteed: (i) the death of a Guarantor, (ii) the termination of Guarantor's
liability with respect to this Lease other than in accordance with the terms of
such guaranty, (iii) a Guarantor's becoming insolvent or the subject of a
bankruptcy filing, (iv) a Guarantor's refusal to honor the guaranty, or (v) a
Guarantor's breach of its guaranty obligation on an anticipatory basis, and
Lessee's failure, within sixty (60) days following written notice of any such
event, to provide written alternative assurance or security, which, when coupled
with the then existing resources of Lessee, equals or exceeds the combined
financial resources of Lessee and the Guarantors that existed at the time of
execution of this Lease.

     13.2 REMEDIES. If Lessee fails to perform any of its affirmative duties or
obligations, within ten (10) days after written notice (or in case of an
emergency, without notice), Lessor may, at its option, perform such duty or
obligation on Lessee's behalf, including but not limited to the obtaining of
reasonably required bonds, insurance policies, or governmental licenses, permits
or approvals. The costs and expenses of any such performance by Lessor shall be
due and payable by Lessee upon receipt of invoice therefor. If any check given
to Lessor by Lessee shall not be honored by the bank upon which it is drawn,
Lessor, at its option, may require all future payments to be made by Lessee to
be by cashier's check. In the event of a Breach, Lessor may, with or without
further notice or demand, and without limiting Lessor in the exercise of any
right or remedy which Lessor may have by reason of such Breach:

          (a) Terminate Lessee's right to possession of the Premises by any
lawful means, in which case this Lease shall terminate and Lessee shall
immediately surrender possession to Lessor. In such event Lessor shall be
entitled to recover from Lessee: (i) the unpaid Rent which had been earned at
the time of termination; (ii) the worth at the time of award of the amount by
which the unpaid rent which would have been earned after termination until the
time of award exceeds the amount of such rental loss that the Lessee proves
could have been reasonably avoided; (iii) the worth at the time of award of the
amount by which the unpaid rent for the balance of the term after the time of
award exceeds the amount of such rental loss that the Lessee proves could be
reasonably avoided: and (iv) any other amount necessary to compensate Lessor for
all the detriment proximately caused by the Lessee's failure to perform its
obligations under this Lease or which in the ordinary course of things would be
likely to result therefrom, including but not limited to the cost of recovering
possession of the Premises, expenses of reletting, including necessary
renovation and alteration of the Premises, reasonable attorneys' fees, and that
portion of any leasing commission paid by Lessor in connection with this Lease
applicable to the unexpired term of this Lease. The worth at the time of award
of the amount referred to in provision (iii) of the immediately preceding
sentence shall be computed by discounting such amount at the discount rate of
the Federal Reserve Bank of the District within which the Premises are located
at the time of award plus one percent (1%). Efforts by Lessor to mitigate
damages caused by Lessee's Breach of this Lease shall not waive Lessor's right
to recover damages under Paragraph 12. If termination of this Lease obtained
through the provisional remedy of unlawful detainer, Lessor shall have the right
to recover in such proceeding any unpaid Rent and damages as are recoverable
therein, or Lessor may reserve the right to recover all or any part thereof in a
separate suit. If a notice and grace period required under Paragraph 13.1 was
not previously given, a notice to pay rent or quit, or to perform or quit given
to Lessee under the unlawful detainer statute shall also constitute the notice
required by Paragraph 13.1. In such case, the applicable grace period required
by Paragraph 13.1 and the unlawful detainer statute shall run concurrently, and
the failure of Lessee to cure the Default within the greater of the two such
grace periods shall constitute both an unlawful detainer and a Breach of this
Lease entitling Lessor to the remedies provided for in this Lease and/or by said
statute.

         (b) Continue the Lease and Lessee's right to possession and recover the
Rent as it becomes due, in which event Lessee may sublet or assign, subject only
to reasonable limitations. Acts of maintenance, efforts to relet, and/or the
appointment of a receiver to protect the Lessor's interests, shall not
constitute a termination of the Lessee's right to possession.

         (c) Pursue any other remedy now or hereafter available under the laws
or judicial decisions of the state wherein the Premises are located. The
expiration or termination of this Lease and/or the termination of Lessee's right
to possession shall not relieve Lessee from liability

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under any indemnity provisions of this Lease as to matters occurring or
accruing during the term hereof or by reason of Lessee's occupancy of the
Premises.

     13.4 LATE CHARGES. Lessee hereby acknowledges that late payment by Lessee
of Rent will cause Lessor to incur costs not contemplated by this Lease, the
exact amount of which will be extremely difficult to ascertain. Such costs
include, but are not limited to, processing and accounting charges, and late
charges which may be imposed upon Lessor by any Lender. Accordingly, if any Rent
shall not be received by Lessor within five (5) days after such amount shall be
due, then, without any requirement for notice to Lessee, Lessee shall pay to
Lessor a one-time late charge equal to six percent (6%) of each such overdue
amount. The parties hereby agree that such late charge represents a fair and
reasonable estimate of the costs Lessor will incur by reason of such late
payment. Acceptance of such late charge by Lessor shall in no event constitute a
waiver of Lessee's Default or Breach with respect to such overdue amount, nor
prevent the exercise of any of the other rights and remedies granted hereunder.
In the event that a late charge is payable hereunder, whether or not collected,
for three (3) consecutive installments of Base Rent, then notwithstanding any
provision of this Lease to the contrary, Base Rent shall, at Lessor's option,
become due and payable quarterly in advance.

     13.5  INTEREST. Any monetary payment due Lessor hereunder, other than late
charges, not received by Lessor, when due as to scheduled payments (such as Base
Rent) or within thirty (30) days following the date on which it was due for
non-scheduled payment, shall bear interest from the date when due, as to
scheduled payments, or the thirty-first (31st) day after it was due as to
non-scheduled payments. The interest ("Interest") charged shall be equal to the
prime rate reported in the Wall Street Journal as published closest prior to the
date when due plus two percent (2%) but shall not exceed the maximum rate
allowed by law. Interest is payable in addition to the potential late charge
provided for in Paragraph 13.4.

     13.6  BREACH BY LESSOR.

         (a) NOTICE OF BREACH. Lessor shall not be deemed in breach of this
Lease unless Lessor fails within a reasonable time to perform an obligation
required to be performed by Lessor. For purposes of this Paragraph, a reasonable
time shall in no event be less than thirty (30) days after receipt by Lessor,
and any Lender whose name and address shall have been furnished Lessee in
writing for such purpose, of written notice specifying wherein such obligation
of Lessor has not been performed; provided, however, that if the nature of
Lessor's obligation is such that more than thirty (30) days are reasonably
required for its performance, then Lessor shall not be in breach if performance
is commenced within such thirty (30) day period and thereafter diligently
pursued to completion.

14. CONDEMNATION. If the Premises or any portion thereof are taken under the
power of eminent domain or sold under the threat of the exercise of said power
(collectively "Condemnation"), this Lease shall terminate as to the part taken
as of the date the condemning authority takes title or possession, whichever
first occurs. If more than ten percent (10%) of any building portion of the
premises, or more than twenty-five percent (25%) of the land area portion of the
premises not occupied by any building, is taken by Condemnation, Lessee may, at
Lessee's option, to be exercised in writing within ten (10) days after Lessor
shall have given Lessee written notice of such taking (or in the absence of such
notice, within ten (10) days after the condemning authority shall have taken
possession) terminate this Lease as of the date the condemning authority takes
such possession. If Lessee does not terminate this Lease in accordance with the
foregoing, this Lease shall remain in full force and effect as to the portion of
the Premises remaining, except that the Base Rent shall be reduced in proportion
to the reduction in utility of the Premises caused by such Condemnation.
Condemnation awards and/or payments shall be the property of Lessor, whether
such award shall be made as compensation for diminution in value of the
leasehold, the value of the part taken, or for severance damages; provided,
however, that Lessee shall be entitled to any compensation for Lessee's
relocation expenses, loss of business goodwill and/or Trade Fixtures, without
regard to whether or not this Lease is terminated pursuant to the provisions of
this Paragraph. All Alterations and Utility Installations made to the Premises
by Lessee, for purposes of Condemnation only, shall be considered the property
of the Lessee and Lessee shall be entitled to any and all compensation which is
payable therefor. In the event that this Lease is not terminated by reason of
the Condemnation, Lessor shall repair any damage to the Premises caused by such
Condemnation.

15.  BROKERS' FEE.

     15.3  REPRESENTATIONS AND INDEMNITIES OF BROKER RELATIONSHIPS. Lessee and
Lessor each represent and warrant to the other that it has had no dealings with
any person, firm, broker or finder (other than the Brokers, if any) in
connection with this Lease, and that no one other than said named Brokers is
entitled to any commission or finder's fee in connection herewith. Lessee and
Lessor do each hereby agree to indemnify, protect, defend and hold the other
harmless from and against liability, for compensation or charges which may be
claimed by any such unnamed broker, finder or other similar party by reason of
any dealings or actions of the Indemnifying Party, including any costs,
expenses, attorneys' fees reasonably incurred with respect thereto.

16.  ESTOPPEL CERTIFICATES

         (a) Each Party (as "RESPONDING PARTY") shall within ten (10) days after
written notice from the other Party (the "REQUESTING PARTY") execute,
acknowledge and deliver to the Requesting Party a statement in writing in form
similar to the then most current "ESTOPPEL CERTIFICATE" form published by the
American Industrial Real Estate Association, plus such additional information,
conformation and/or statements as may be reasonably requested by the Requesting
Party.

         (b) If the Responding Party shall fail to execute or deliver the
Estoppel Certificate within such ten day period, the Requesting Party may
execute an Estoppel Certificate stating that: (i) the Lease is in full force and
effect without modification except as may be represented by the Requesting
Party, (ii) there are no uncured defaults in the Requesting Party's performance,
and (iii) if Lessor is the Requesting Party, not more than one month's rent has
been paid in advance. Prospective purchasers and encumbrancers may rely upon the
Requesting Party's Estoppel Certificate, and the Responding Party shall be
estopped from denying the truth of the facts contained in said Certificate.

                                     PAGE 9


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         (c) If Lessor desires to finance, refinance, or sell the Premises, or
any part hereof, Lessee and all Guarantor shall deliver to any potential lender
or purchaser designated by Lessor such financial statements as may be reasonably
required by such lender or purchaser including but not limited to Lessee's
financial statements for the past three (3) years. All such financial statements
shall be received by Lessor and such lender or purchaser in confidence and shall
be used only for the purposes herein set forth.

17. DEFINITION OF LESSOR. The term "Lessor" as used herein shall mean the owner
or owners at the time in question of the fee title to the Premises, or, if this
is a sublease, of the Lessee's interest in the prior lease. In the event of a
transfer of Lessor's title or interest in the Premises or this Lease, Lessor
shall deliver to the transferee or assignee (in cash or by credit) any unused
Security Deposit held by Lessor. Except as provided in Paragraph 15, upon such
transfer or assignment and delivery of the Security Deposit, as aforesaid, the
prior Lessor shall be relieved of all liability with respect to the obligations
and/or covenants under this Lease thereafter to be performed by the Lessor.
Subject to the foregoing, the obligations and/or covenants in this Lease to be
performed by the Lessor shall be binding only upon the Lessor as hereinabove
defined. Notwithstanding the above, and subject to the provisions of Paragraph
20 below, the original Lessor under this Lease, and all subsequent holders of
the Lessor's interest in this Lease shall remain liable and responsible with
regard to the potential duties and liabilities of Lessor pertaining to Hazardous
Substances as outlined in Paragraph 6 above.

18. SEVERABILITY. The invalidity of any provision of this Lease, as
determined by a court of competent jurisdiction, shall in no way affect the
validity of any other provision hereof.

19. DAYS. Unless otherwise specifically indicated to the contrary, the word
"days" as used in this Lease shall mean and refer to calendar days.

20. LIMITATION ON LIABILITY. Subject to the provisions of Paragraph 17
above, the obligations of Lessor under this Lease shall not constitute personal
obligations of Lessor, the individual partners of Lessor or its or their
individual partners, directors, officers or shareholders, and Lessee shall look
to the Premises, and to no other assets of Lessor, for the satisfaction of any
liability of Lessor with respect to this Lease. and shall not seek recourse
against the individual partners of Lessor, or its or their individual partners,
directors, officers or shareholders, or any of the personal assets for such
satisfaction.

21. TIME OF ESSENCE. Time is of the essence with respect to the performance
of all obligations to be performed or observed by the Parties under this Lease.

22. NO PRIOR OR OTHER AGREEMENTS; BROKER DISCLAIMER. This Lease contains all
agreements between the Parties with respect to any matter mentioned herein, and
no other prior or contemporaneous agreement or understanding shall be effective.

23. NOTICES.

     23.1  NOTICE REQUIREMENTS. All notices required or permitted by this Lease
shall be in writing and may be delivered in person (by hand or by courier) or
may be sent by regular, certified or registered mail or U.S. Postal Service
Express Mail, with postage prepaid, or by facsimile transmission, and shall be
deemed sufficiently given if served in a manner specified in this Paragraph 23.
The addresses noted adjacent to a Party's signature on this Lease shall be
that Party's address for delivery or mailing of notices. Either Party may by
written notice to the other specify a different address for notice, except that
upon Lessee's taking possession of the Premises, the Premises shall constitute
Lessee's address for notice. A copy of all notices to Lessor shall be
concurrently transmitted to such party or parties at such addresses as Lessor
may from time to time hereafter designate in writing.

     23.2 DATE OF NOTICE. Any notice sent by registered or certified mail,
return receipt requested, shall be deemed given on the date of delivery shown on
the receipt card, or if no delivery date is shown, the postmark thereon, if sent
by regular mail the notice shall be deemed given forty-eight (48) hours after
the same is addressed as required herein and mailed with postage prepaid.
Notices delivered by United State Express Mail or overnight courier that
guarantee next day delivery shall be deemed given twenty-four (24) hours after
delivery of the same to the Postal Service or courier. Notices transmitted by
facsimile transmission or similar means shall be deemed delivered upon telephone
confirmation of receipt, provided a copy is also delivered via delivery or mail.
If notice is received on a Saturday, Sunday or legal holiday, it shall be deemed
received on the next business day.

24. WAIVERS. No waiver by Lessor of the Default or Breach of any term, covenant
or condition hereof by Lessee, shall be deemed a waiver of any other term,
covenant or condition hereof, or of any subsequent Default or Breach by Lessee
of the same or of any other term, covenant or condition hereof. Lessor's consent
to, or approval of, any act shall not be deemed to render unnecessary the
obtaining of Lessor's consent to or approval of, any subsequent or similar act
by Lessee, or be construed as the basis of an estoppel to enforce the provision
or provisions of this Lease requiring such consent. The acceptance of Rent by
Lessor shall not be a waiver of any Default or Breach by Lessee. Any payment by
Lessee may be accepted by Lessor on account of moneys or damages due Lessor,
notwithstanding any qualifying statements or condition made by Lessee in
connection therewith, which such statements and/or conditions shall be of no
force or effect whatsoever unless specifically agreed to in writing by Lessor at
or before the time of deposit of such payment.

26. NO RIGHT TO HOLDOVER. Lessee has no right to retain possession of the
Premises or any part thereof beyond the expiration or termination of this Lease.
In the event that Lessee holds over, then the Base Rent shall be increased to
one hundred fifty percent (150%) of the Base Rent applicable during the month
immediately preceding the expiration or termination. Nothing contained herein
shall be construed as consent to Lessor to any holding over by Lessee.

27.CUMULATIVE REMEDIES. No remedy or election hereunder shall be deemed
exclusive but shall, wherever possible, be cumulative with any other remedies
at law or in equity.

28. COVENANTS AND CONDITIONS; CONSTRUCTION OF AGREEMENT. All provisions
of this Lease to be observed or performed by Lessee are both covenants and
conditions. In construing this Lease, all headings and titles are for the
convenience of the parties only and shall not be considered a part of this
Lease. Whenever required by the context, the singular shall include the plural
and vice versa. This Lease shall not be construed as if prepared by one of the
parties, but rather according to its fair meaning as a whole, as if both parties
had prepared it.

29. BINDING EFFECT; CHOICE OF LAW. This Lease shall be binding upon the
parties, their personal representatives, successors and assigns and be governed
by the laws of the State in which the Premises are located. Any litigation
between the Parties hereto concerning this Lease shall be initiated in the
county in which the Premises are located.

30. SUBORDINATION; ATTORNMENT; NON-DISTURBANCE.

     30.1 SUBORDINATION. This Lease and any Option granted hereby shall be
subject and subordinate to any ground lease, mortgage, deed of trust, or other
hypothecation or security device (collectively, "SECURITY DEVICE"), now or
hereafter placed upon the Premises, to any and all advances made on the security
thereof, and to all renewals, modifications, and extensions thereof. Lessee
agrees that the holders of any such Security Devices (in this Lease together
referred to as "Lender") shall have no liability or obligations to perform any
of the obligations of Lessor under this Lease. Any Lender may elect to have this
Lease and/or any Option granted hereby superior to the lien of its Security
Device by giving written notice thereof to Lessee, whereupon this Lease and such
Options shall be deemed prior to such Security Device, notwithstanding the
relative dates of the documentation or recordation thereof.

     30.2  ATTORNMENT. Subject to the non-disturbance provisions of Paragraph
30.3, Lessee agrees to attorn to a Lender of any other party who acquires
ownership of the Premises by reason of a foreclosure of a Security Device, and
that in the event of such foreclosure, such new

                                     PAGE 10


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owner shall not: (i) be liable for any act or omission of any prior lessor
or with respect to events occurring prior to acquisition of ownership; (ii) be
subject to any offsets or defenses which Lessee might have against any prior
lessor, or (iii) be bound by prepayment of more than one (1) month's rent.

    30.3  NON-DISTURBANCE. With respect to Security Devices entered into by
Lessor after the execution of this Lease, Lessee's subordination of this Lease
shall be subject to receiving a commercially reasonable non-disturbance
agreement (a "NON-DISTURBANCE AGREEMENT") from the Lender which Non-Disturbance
Agreement provides that Lessee's possession of the Premises, and this Lease,
including any options to extend the term hereof, will not be disturbed so long
as Lessee is not in Breach hereof and attorns to the record owner of the
Premises. Further, within sixty (60) days after the execution of this Lease,
Lessor shall use its commercially reasonable efforts to obtain a Non-Disturbance
Agreement from the holder of any pre-existing Security Device which is secured
by the Premises. In the event that Lessor is unable to provide the
Non-Disturbance Agreement within sixty (60) days, then Lessee may, at Lessees
option, directly contact Lessor's lender and attempt to negotiate for the
execution and delivery of a Non-Disturbance Agreement.

     30.4 SELF-EXECUTING. The agreements contained in this Paragraph 30 shall be
effective without the execution of any further documents; provided, however,
that, upon written request from Lessor or a Lender in connection with a sale,
financing or refinancing of the Premises, Lessee and Lessor shall execute such
further writings as may be reasonably required to separately document any
subordination, attornment and/or Non-Disturbance Agreement provided for herein.

31. ATTORNEYS' FEES. If any Party or Broker brings an action or proceeding
involving the Premises to enforce the terms hereof or to declare rights
hereunder, the Prevailing Party (as hereafter defined) in any such proceeding,
action, or appeal thereon, shall be entitled to reasonable attorneys' fees. Such
fees may be awarded in the same suit or recovered in a separate suit, whether or
not such action or proceeding is pursued to decision or judgment. The term,
"Prevailing Party" shall include, without limitation, a Party or Broker who
substantially obtains or defeats the relief sought, as the case may be, whether
by compromise, settlement, judgment, or the abandonment by the other Party or
Broker of its claim or defense. The attorneys' fees award shall not be computed
in accordance with any court fee schedule, but shall be such as to fully
reimburse all attorneys' fees reasonably incurred. In addition, Lessor shall be
entitled to attorneys' fees, costs and expenses incurred in the preparation and
service of notices of Default and consultations in connection therewith, whether
or not a legal action is subsequently commenced in connection with such Default
or resulting Breach.

32. LESSOR'S ACCESS; SHOWING PREMISES; REPAIRS. Lessor and Lessor's agents shall
have the right to enter the Premises at any time, in the case of an emergency,
and otherwise at reasonable times after 24 hours prior notice for the purpose of
showing the same to prospective purchasers, lenders, or lessees, and making such
alterations, repairs, improvements or additions to the Premises as Lessor may
deem necessary. All such activities shall be without abatement of rent or
liability to Lessee. Lessor may at any time place on the Premises any ordinary
"For Sale" signs and Lessor may during the last six (6) months of the term
hereof place on the Premises any ordinary "For Lease" signs. Lessee may at any
time place on or about the Premises any ordinary "For Sublease" sign.

33. AUCTIONS. Lessee shall not conduct, nor permit to be conducted, any
auction upon the Premises without Lessor's prior written consent. Lessor shall
not be obligated to exercise any standard of reasonableness in determining
whether to permit an auction.

34. SIGNS. Except for ordinary "For Sublease" signs, Lessee shall not place
any sign upon the Premises without Lessor's prior written consent. All signs
must comply with all Applicable Requirements.

35. TERMINATION; MERGER. Unless specifically stated otherwise in writing by
Lessor, the voluntary or other surrender of this Lease by Lessee, the mutual
termination or cancellation hereof, or a termination hereof by Lessor for Breach
by Lessee, shall automatically terminate any sublease or lesser estate in the
Premises; provided, however, that Lessor may elect to continue any one or all
existing subtenancies. Lessor's failure within ten (10) days following any such
event to elect to the contrary by written notice to the holder of any such
lesser interest, shall constitute Lessor's election to have such event
constitute the termination of such interest.

36. CONSENTS. Except as otherwise provided herein, wherever in this Lease the
consent of a Party is required to an act by or for the other Party, such consent
shall not be unreasonably withheld or delayed. Lessor's actual reasonable costs
and expenses (including but not limited to architects', attorneys', engineers'
and other consultants' fees) incurred in the consideration of, or response to, a
request by Lessee for any Lessor consent, including but not limited to consents
to an assignment, a subletting or the presence or use of a Hazardous Substance,
shall be paid by Lessee upon receipt of an invoice and supporting documentation
therefor. Lessor's consent to any act, assignment or subletting shall not
constitute an acknowledgment that no Default or Breach by Lessee of this Lease
exists, nor shall such consent be deemed a waiver of any then existing Default
or Breach, except as may be otherwise specifically stated in writing by Lessor
at the time of such consent. The failure to specify herein any particular
condition to Lessor's consent shall not preclude the imposition by Lessor at the
time of consent of such further or other conditions as are then reasonable with
reference to the particular matter for which consent is being given. In the
event that either Party disagrees with any determination made by the other
hereunder and reasonably requests the reasons for such determination, the
determining party shall furnish its reasons in writing and in reasonable detail
within ten (10) business days following such request.

38. QUIET POSSESSION. Subject to payment by Lessee of the Rent and
performance of all of the covenants, conditions and provisions on Lessee's part
to be observed and performed under this Lease. Lessee shall have quiet
possession and quiet enjoyment of the Premises during the term hereof.

                                       PAGE 11


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41. SECURITY MEASURES. Lessee hereby acknowledges that the rental payable to
Lessor hereunder does not include the cost of guard service or other security
measures, and that Lessor shall have no obligation whatsoever to provide same.
Lessee assumes all responsibility for the protection of the Premises. Lessee,
its agents and invitees and their property from the acts of third parties.

42. RESERVATIONS. Lessor reserves to itself the right, from time to time, to
grant, without the consent or joinder of Lessee, such easements, rights and
dedications that Lessor deems necessary, and to cause the recordation of parcel
maps and restrictions, so long as such easements, rights, dedications, maps and
restrictions do not unreasonably interfere with the use of the Premises by
Lessee. Lessee agrees to sign any documents reasonably requested by Lessor to
effectuate any such easement rights, dedication, map or restrictions.

43. PERFORMANCE UNDER PROTEST. If at any time a dispute shall arise as to any
amount or sum of money to be paid by one Party to the other under the provisions
hereof, the Party against whom the obligation the money is asserted shall have
the right to make payment "under protest" and such payment shall not be regarded
as a voluntary payment and there shall survive the right on the part of said
Party to institute or recovery of such sum. If it shall be adjudged that there
was no legal obligation on the part of said Party to pay such sum or any part
thereof, said Party shall be entitled to recover such sum or so much thereof as
it was not legally required to pay.

44. AUTHORITY. If either Party hereto is acorporation, trust, limited liability
company, partnership, or similar entity, each individual executing this Lease on
behalf of such entity represents and warrants that he or she is duly authorized
to execute and deliver this Lease on its behalf. Each party shall, within thirty
(30) days after request, deliver to the other party satisfactory evidence of
such authority.

45. CONFLICT. Any conflict between the printed provisions of this Lease and
the typewritten or handwritten provisions shall be controlled by the typewritten
or handwritten provisions.

46. OFFER. Preparation of this Lease by either Party, or their agent and
submission of same to the other Party shall not be deemed an offer to lease to
the other Party. This Lease is not intended to be binding until executed and
delivered by all Parties hereto.

47. AMENDMENTS. This Lease may be modified only in writing, signed by the
Parties in interest at the time of the modification. As long as they do not
materially change Lessee's obligations hereunder, Lessee agrees to make such
reasonable non-monetary modifications to this Lease as may be reasonably
required by a Lender in connection with the obtaining of normal financing or
refinancing of the Premises.

48. MULTIPLE PARTIES. If more than one person or entity is named herein as
either Lessor or Lessee, such multiple Parties shall have joint and several
responsibility to comply with the terms of this Lease. (See Addendum Paragraph
56)

49. MEDIATION AND ARBITRATION OF DISPUTES. An Addendum requiring the
Mediation and/or the Arbitration of all disputes between the Parties and/or
Brokers arising out of this Lease [ ] is [ x ] is not attached to this Lease.

LESSOR AND LESSEE HAVE CAREFULLY READ AND REVIEWED THIS LEASE AND EACH TERM AND
PROVISION CONTAINED HEREIN, AND BY THE EXECUTION OF THIS LEASE SHOW THEIR
INFORMED AND VOLUNTARY CONSENT THERETO. THE PARTIES HEREBY AGREE THAT, AT THE
TIME THIS LEASE IS EXECUTED, THE TERMS OF THIS LEASE ARE COMMERCIALLY REASONABLE
AND EFFECTUATE THE INTENT AND PURPOSE OF LESSOR AND LESSEE WITH RESPECT TO THE
PREMISES.

-------------------------------------------------------------------------------
ATTENTION: NO REPRESENTATION OR RECOMMENDATION IS MADE BY THE AMERICAN
INDUSTRIAL REAL ESTATE ASSOCIATION OR BY ANY BROKER AS TO THE LEGAL SUFFICIENCY,
LEGAL EFFECT, OR TAX CONSEQUENCES OF THIS LEASE OR THE TRANSACTION TO WHICH IT
RELATES. THE PARTIES ARE URGED TO:

1. SEEK ADVICE OF COUNSEL AS TO THE LEGAL AND TAX CONSEQUENCES OF THIS
LEASE.
2. RETAIN APPROPRIATE CONSULTANTS TO REVIEW AND INVESTIGATE THE CONDITION
OF THE PREMISES. SAID INVESTIGATION SHOULD INCLUDE BUT NOT BE LIMITED TO: THE
POSSIBLE PRESENCE OF HAZARDOUS SUBSTANCES, THE ZONING OF THE PREMISES, THE
STRUCTURAL INTEGRITY, THE CONDITION OF THE ROOF AND OPERATING SYSTEMS, AND THE
SUITABILITY OF THE PREMISES FOR LESSEE'S INTENDED USE.

WARNING: IF THE PREMISES IS LOCATED IN A STATE OTHER THAN CALIFORNIA, CERTAIN
PROVISIONS OF THE LEASE MAY NEED TO BE REVISED TO COMPLY WITH THE LAWS OF THE
STATE IN WHICH THE PREMISES IS LOCATED.
-------------------------------------------------------------------------------

The parties hereto have executed this Lease at the place and on the dates
specified above their respective signatures.

Executed at: Palo Alto, California   Executed at:  Belmont, CA
           ------------------------             ---------------------------
on:  June 15, 1999                   on:  1630 HRS    5 June 1999
   --------------------------------     -----------------------------------

By LESSOR:                           By LESSEE:
W.F. BATTON & CO., INC.,             WIRELESS, INC.,
-----------------------------------  --------------------------------------
A CALIFORNIA CORPORATION             A CALIFORNIA CORPORATION

By:  /s/ Marie A. Batton             By:  /s/ William E. Gibson
     ------------------------------     -----------------------------------
Name Printed: /s/ Marie A. Batton    Name Printed:  William E. Gibson
            -----------------------               -------------------------
Title: Vice President                Title: President/CEO
     ------------------------------       ---------------------------------

By: /s/ Pamela Foley                 By:  /s/ William Yang
Name Printed:  Pamela Foley          Name Printed:  William Yang
            -----------------------              --------------------------
Title: Vice President                Title:  VP/Secretary
     ------------------------------       ---------------------------------
Address:                             Address:
       ----------------------------         -------------------------------

Telephone: (       )                 Telephone: (       )
         --------------------------           -----------------------------
Facsimile: (        )                Facsimile: (        )
         --------------------------           -----------------------------
Federal ID No.                       Federal ID No.
             ----------------------               -------------------------

NOTE: These forms are often modified to meet changing requirements of law and
     industry needs. Always write or call to make sure you are utilizing the
     most current form: AMERICAN INDUSTRIAL REAL ESTATE ASSOCIATION, 700 So.
     Flower Street, Suite 600, Los Angeles, CA 90017, (213) 687-8777. Fax No.
     (213) 687-8616.

                                      MOMENTUM LASER, INC.,
                                      a California corporation

                                       By:  /s/ William E. Gibson
                                          ----------------------------------
                                       Its  President/CEO

                                       By:
                                          ----------------------------------
                                       Its


                                     PAGE 12
<PAGE>



                                ADDENDUM TO LEASE

                              5452 Betsy Ross Drive
                             Santa Clara, California

          This Addendum to Lease is entered into as of June 4, 1999, by and
between W.F. BATTON & CO., INC., a California corporation, Lessor, and WIRELESS,
INC., a California corporation, and MOMENTUM LASER, INC., a California
corporation, Lessee, for the Premises at 5452 Betsy Ross Drive, Santa Clara,
California.

         Lessor and Lessee further agree as follows:

         50.      BASE RENT.
                  ---------

                  (a) Lessee shall pay to Lessor Base Rent per month based upon
the Premises consisting of 54,800 square feet at the initial rate of $1.35 per
square foot per month, with annual increases of five cents ($.05) per square
foot per month, as follows:

                          PERIOD                         BASE RENT PER MONTH
                         ------                          -------------------
                  August 1 1999 - July 31, 2000               $73,980
                  August 1 2000 - July 31, 2001               $76,720
                  August 1 2001 - July 31. 2002               $79,460
                  August 1 2002 - July 31. 2003               $82,200
                  August 1 2003 - July 31, 2004               $84,940
                  August 1 2004 - July 31, 2005               $87,680
                  August 1 2005 - July 31. 2006               $90,420

                  (b) Lessee shall also pay to Lessor monthly in advance with
the Base Rent the monthly installment of the amortization of a portion of the
cost of the Tenant Improvements in accordance with Paragraph 52(f)(2) below.

                  (c) Lessee shall pay to Lessor upon the execution and delivery
of this Lease the sum of $73,980 as Base Rent for the month of August 1999.

         51.      SECURITY DEPOSIT.
                  ----------------

                  (a) Concurrently with the execution and delivery of this Lease
by Lessor and Lessee. Lessee shall deliver to Lessor an unconditional,
irrevocable standby letter of credit issued by Silicon Valley Bank (the "BANK")
in the amount of Two Hundred Twenty-One Thousand Nine Hundred Forty Dollars
($221,940) (3 x $73,980) in favor of Lessor as beneficiary. with an expiration
date of one (1) year from the date of issuance. The letter of credit shall
provide that the Bank shall pay the amount of the letter of credit to Lessor
upon receipt by the Bank of a letter signed by an officer of Lessor certifying
that a breach of this Lease (as defined in Paragraph 13.1) by Lessee has
occurred and is


                                      Initials: Lessor /s/ MAB  Lessee  /s/ WEG
                                                       --------        ---------
<PAGE>

continuing. The form of the letter of credit shall be subject to Lessor's
reasonable approval.

                  (b) Lessee shall deliver to Lessor annually during the entire
Lease term at least thirty (30) days prior to the expiration of the letter of
credit then outstanding a new one (1) year unconditional irrevocable standby
letter of credit issued by the Bank in the form previously approved by Lessor in
an amount equal to three (3) months of Base Rent at the new rate payable for the
Lease year beginning as of the following August 1st in accordance with Paragraph
50(a) above, in favor of Lessor as beneficiary, with the same provision for
payment by the Bank referred to in Paragraph 51(a) above. Failure of Lessee to
deliver to Lessor a new letter of credit which complies with the foregoing
provisions at least thirty (30) days prior to the expiration of the then
outstanding letter of credit shall constitute a breach by Lessee of this Lease,
which shall give Lessor the right to draw on the then outstanding letter of
credit.

                  (c) When Lessee's consolidated balance sheet dated as of the
end of Lessee's fiscal year prepared in accordance with generally accepted
accounting principles, certified by Lessee's independent certified public
accountants, shows that Lessee's current assets exceed Lessee's current
liabilities by more than Thirty Million Dollars ($30,000,000), the next letter
of credit delivered by Lessee to Lessor may be in an amount equal to two (2)
months of Base Rent at the new Base Rent payable for the Lease year beginning as
of the following August 1st; provided, that if any subsequent year end audited
balance sheet shows that Lessee's current assets do not exceed Lessee's current
liabilities by more than Thirty Million Dollars ($30,000,000), the next letter
of credit delivered by Lessee to Lessor shall be in an amount equal to three (3)
months of Base Rent at the Base Rent payable for the next Lease year commencing
August 1st.

                  (d) Lessor shall surrender the letter of credit to Lessee upon
the expiration or sooner termination of the lease term, provided that Lessee is
not in default hereunder. Lessee has performed all of Lessee's obligations under
this Lease, and this Lease was not terminated on account of Lessee's breach.

         52.      CONDITION OF THE PREMISES; TENANT IMPROVEMENTS.
                  ----------------------------------------------

                  (a) Lessor shall deliver the Premises to Lessee broom clean
and free of debris on or before August 1, 1999 (the "Commencement Date") with
the improvements described in Paragraph 52(b) (the "Tenant Improvements")
completed. If the Tenant Improvements are not completed by August 1, 1999 due
solely to delays caused by Lessee which are documented by Lessor and/or the
Contractor, the Commencement Date and rent commencement shall be August 1, 1999.

                  (b) Prior to the occupancy of the Premises by Lessee, Lessor
shall cause to be constructed and completed the Tenant Improvements to the
Premises listed on Exhibit "B" and shown on the floor plan, Exhibit "B-2,"
attached hereto and incorporated by reference herein. Lessor shall cause the
Tenant Improvements to be constructed by


                                      Initials: Lessor /s/ MAB  Lessee  /s/ WEG
                                                       --------        ---------

                                       2
<PAGE>

Dymond Construction Group (the "Contractor") pursuant to an Agreement between
Lessor and the Contractor (the "Construction Contract") which shall provide for
a guaranteed maximum cost of items F, G, and H on Exhibit "B" in an amount
approved by Lessor and Lessee. Plans and specifications for the Tenant
Improvements shall be prepared by LRS Architects at Lessor's expense. The
Construction Contract and the plans and specifications for the Tenant
Improvements shall be subject to approval by Lessee, which approval shall not be
unreasonably withheld. The Construction Contract shall include a guarantee by
the Contractor against defects in workmanship or materials for one (1) year.

                  (c) The Contractor has obtained bids for the portion of the
work referred to as items F, G, and H on Exhibit "B" which is to be performed by
subcontractors. Lessor and Lessee have approved the Contractor's estimate of Two
Hundred Sixty-Seven Thousand Five Hundred Ninety-Five Dollars ($267,595) as the
cost to construct items F, G, and H. If the final bid of the Contractor for the
cost of items F, G, and H exceeds Two Hundred Sixty-Seven Thousand Five Hundred
Ninety-Five Dollars ($267,595), Lessor and Lessee have reviewed the bid and the
plans and are unable to agree upon changes to the plans to reduce the cost of
items F, G, and H to Two Hundred Sixty-Seven Thousand Five Hundred Ninety-Five
Dollars ($267,595) promptly after receipt of said bid after attempting in good
faith to do so, Lessor and Lessee shall approve the final bid of the Contractor
for items F, G, and H, and Lessee shall pay in a lump sum in cash to Lessor
promptly upon completion of the Tenant Improvements that portion of the cost of
items F, G, and H which exceeds Two Hundred Sixty-Seven Thousand Five Hundred
Ninety-Five Dollars ($267,595), in addition to the payments by Lessee to Lessor
pursuant to Paragraph 52(f) below.

                  (d) After the working drawings have been approved by Lessor
and Lessee in final form in writing as provided above, Lessee shall have the
right to request change orders to items F, G, and H. Any change order requested
by Lessee shall be subject to the prior written approval of Lessor, which
consent shall not be unreasonably withheld or delayed provided that the change
order does not increase the total improvement costs of items F, G, and H unless
Lessee agrees to pay such excess. Lessee shall not be entitled to request, and
Lessor shall not be obligated to approve, any change order which increases the
total cost of items F, G, and H to an amount which exceeds the cost previously
approved by Lessor and Lessee, unless Lessee agrees to pay such excess to Lessor
in a lump sum in cash promptly upon completion of the Tenant Improvements.

                 (e) The cost of items A through E, inclusive, on Exhibit "B"
shall be paid by Lessor.

                 (f) The cost of items F, G, and H on Exhibit "B" shall be
paid as follows:

                    (1) The initial One Hundred Sixty-Seven Thousand Five
Hundred Ninety-Five Dollars ($167,595) of the cost of items F, G, and H shall be
reimbursed by

                                      Initials: Lessor /s/ MAB  Lessee  /s/ WEG
                                                       --------        ---------

                                       3
<PAGE>

Lessee to Lessor, with Eighty-Three Thousand Seven Hundred Ninety-Seven and
Fifty One Hundredth Dollars ($83,797.50) thereof paid in cash by Lessee to
Lessor within five (5) days after Lessor gives written notice to Lessee of
completion of the Tenant Improvements, and the remaining Eighty-Three Thousand
Seven Hundred Ninety-Seven and Fifty One Hundredth Dollars ($83,797.50) thereof
shall be evidenced by Lessee's negotiable Promissory Note in said principal
amount in form approved by Lessor delivered by Lessee to Lessor with said cash
payment of Eighty-Three Thousand Seven Hundred Ninety-Seven and Fifty One
Hundredth Dollars ($83,797.50). Said Promissory Note shall bear interest at ten
percent (10%) per annum, with principal and accrued interest all due and payable
six (6) months after the date of Lessor's notice to Lessee of the completion of
the Tenant Improvements. Default by Lessee in payment of said Note shall
constitute a default by Lessee under this Lease.

                    (2) The next One Hundred Thousand Dollars ($100,000) of the
cost of items F, G, and H initially shall be paid by Lessor to the Contractor.
Said amount shall be reimbursed by Lessee to Lessor in eighty-four (84) equal
monthly installments, plus simple interest on the unpaid principal balance at
the rate of ten percent (10%) per annum, payable by Lessee to Lessor monthly in
advance together with monthly Base Rent. Failure by Lessee to pay any
installment when due shall constitute a default by Lessee under this Lease.

                    (3) Lessee shall pay to the Lessor in cash promptly upon
completion of the Tenant Improvements that portion of the cost, if any, of items
F, G, and H which exceeds Two Hundred Sixty-Seven Thousand Five Hundred
Ninety-Five Dollars ($267,595).

                  (g) All of the Tenant Improvements which are constructed with
funds of Lessor shall become the property of Lessor. Any furnishings, trade
fixtures, equipment installed in the Premises and paid for by Lessee shall
become the property of Lessee upon installation thereof in the Premises and
Lessee shall have the right to depreciate and claim and collect investment tax
credits on any such property throughout the term of the Lease.

                  (h) Provided that no default by Lessee occurs hereunder, items
F, G, and H on Exhibit "B" shall be deemed to have been constructed with
Lessee's funds and Lessee shall be entitled to claim the depreciation deductions
(and investment tax credit, if applicable) for such items for income tax
purposes. Notwithstanding the foregoing, items F, G, and H and any other Tenant
Improvements constructed with Lessee's funds shall become a part of the realty
and shall become Lessor's property upon the expiration or sooner termination of
this Lease, except for items which Lessor and Lessee agree in writing prior to
commencement of construction may be or shall be removed by Lessee.

          53. HAZARDOUS MATERIALS MANAGEMENT PLAN. Lessee represents,
warrants and covenants with Lessor that Lessee will not conduct any
manufacturing or development processes on the Premises in which hazardous
materials are regularly used. Except as set forth on Exhibit "C" attached hereto
and incorporated herein by reference. Lessee shall

                                      Initials: Lessor /s/ MAB  Lessee  /s/ WEG
                                                       --------        ---------

                                       4
<PAGE>

not bring onto the Premises any hazardous materials. Lessee shall deliver to
Lessor (1) a copy of Lessee's current Hazardous Materials Management Plan, and
any amendments or supplements thereto, or replacements thereof, from time to
time during the term of this Lease, and (2) a copy of all Hazardous Materials
reports or plans filed by Lessee with the City of Santa Clara, even though
Lessee's Hazardous Materials Management Plan and any such reports on plans filed
with the City show that Lessee is not currently using any reportable hazardous
materials on the Premises.

          54. MAINTENANCE: REPAIRS UTILITY INSTALLATIONS: TRADE FIXTURES
              AND ALTERATIONS.

Pursuant to Paragraphs 7.1 and 7.2, Lessor's Obligations, of the printed portion
of this Lease, Lessor and Lessee agree that this Lease is a "NNN Lease" and that
it shall be solely Lessee's obligation to repair and maintain the Premises, and
the equipment therein. Lessee shall reimburse Lessor within fifteen (15) days
after demand for all operating expenses of the Premises, including, but not
limited to, real property taxes and assessments, and Lessor's property
insurance and liability insurance; Lessee shall directly contract for and shall
be responsible for all repairs and maintenance, including but not limited to,
repair and maintenance (and replacement, as necessary) of the parking area,
landscaping, common areas, building repairs and maintenance, mechanical systems
in the building, and utilities; structural and non-structural repair,
maintenance and replacement of the roof, and other structural and non-structural
repairs and replacement of building elements required as a result of the
installation, repair, maintenance, operation and removal of Lessee's
improvements, fixtures, and equipment. Lessee shall also pay to Lessor a
property management fee equal to ten percent (10%) of any operating costs or
capital improvement costs which are contracted for and administered by Lessor
and passed through to Lessee for reimbursement pursuant to the terms of this
Lease, but excluding property taxes, insurance premiums, and the repairs and
maintenance expenses which are contracted for and administered by Lessee.

              54A. INSURANCE.

                  (a) The parties acknowledge and agree that Lessor is the
"Insuring Party" for purposes of Paragraph 1.9 and Paragraph 8.

                  (b) Paragraphs 8.3(a) and 8.3(b) of the printed portion of
this Lease (which Paragraphs shall remain in full force and effect) are
supplemented as follows:

                  The property insurance carried by Lessor pursuant to
Paragraph 8.3 shall include (i) property insurance insuring the building and
all improvements which now are or hereafter become a part of the Premises for
perils covered by a causes of loss-special form insurance policy containing both
replacement cost and agreed amount endorsements or options; (ii) boiler and
machinery insurance, if applicable; (iii) flood insurance; (iv) earthquake
insurance (if required by Lessor's mortgage lender in the future and Lessor's
mortgage lender determines that the cost and availability of earthquake
insurance is reasonable); (v) builders risk insurance during all periods of
construction; (vi) insurance against all other hazards as may be reasonably
required by Lessor's lender;

                                      Initials: Lessor /s/ MAB  Lessee  /s/ WEG
                                                       --------        ---------

                                       5
<PAGE>

and (vii) rental value insurance for the perils insured against by Lessor for
one hundred percent (100%) of the Rent (including operating expenses, real
estate taxes, assessments and insurance costs which are Lessee's liability) for
a period of twelve (12) months.

              55. ASSIGNMENT AND SUBLETTING. Paragraph 12, Assignment and
Subletting, of the printed Lease form is amended as follows:

                  (a) Lessee shall have the right to sublease less than fifty
percent (50%) of the Premises without Lessor having the right to recapture said
portion of the Premises, provided that (1) upon the expiration of the sublease
term there are at least eighteen (18) months remaining on the term of this
Lease, (2) concurrently with Lessee's request to Lessor that Lessor approve the
sublease Lessee shall deliver to Lessor a certificate under penalty of perjury
stating that at the time of entering into the sublease Lessee intends to occupy
one hundred percent (100%) of the Premises upon the expiration of the sublease
term, and (3) during the entire term of the sublease Lessee shall occupy the
balance of the Premises which is not subject to said sublease. Vacation or
abandonment of the Premises by Lessee, or the surrender or termination of this
Lease shall automatically terminate the sublease.

                  (b) Lessee may sublet the entire Premises to a single
sublessee for the entire balance of the term of this Lease, subject to the
conditions set forth in Paragraph 12 of the printed Lease and subject to the
conditions set forth in subparagraph (c) below, including, but not limited to,
Lessor's right to recapture the Premises in lieu of consenting to such sublease.

                  (c) Any sublease entered into by Lessee pursuant to Paragraphs
55(a) or 55(b) above shall be subject to Lessor's prior written approval and
shall be subject to the conditions specified in Paragraph 12 of this Lease,
amended and supplemented as follows: (1) any sublease base rent in excess of the
amount Lessee is paying to Lessor shall be shared 50-50 by Lessor and Lessee,
without any deductions from such excess whatsoever; (2) any such sublease shall
provide that sub-subletting by the sublessee is expressly prohibited; (3) in
lieu of approving or disapproving a sublease referred to in Paragraph 55(b),
Lessor may terminate this Lease and recapture the Premises without any
liability to Lessee; and (4) Lessor shall have not less than fifteen (15)
business days after receipt by Lessor of (i) Lessee's written request for
consent to a sublease, and (ii) all relevant information requested by Lessor
including the transaction documentation, within which to give Lessor's approval
or disapproval of the sublease, or to terminate this Lease and recapture the
Premises.

                  (d) Lessee shall reimburse Lessor for Lessor's attorney's fees
incurred in connection with any assignment or sublease transaction. Said
attorney's fees shall be billed at the attorney's normal hourly rate, but such
fees shall not exceed the total of One Thousand Dollars ($1,000).

                  (e) Notwithstanding anything to the contrary in this Lease,
Lessee may, without Lessor's prior written consent, without any participation by
Lessor in assignment

                                      Initials: Lessor /s/ MAB  Lessee  /s/ WEG
                                                       --------        ---------

                                       6
<PAGE>

and subletting proceeds, and without Lessor's right of recapture the Premises,
sublet the Premises or assign this Lease to a subsidiary, affiliate, division,
or corporation controlling, controlled by or under common control with Lessee; a
successor corporation related to Lessee by merger, consolidation, nonbankruptcy
reorganization, or government action; or a purchaser of substantially all of
Lessee's assets located in the Premises; provided that in any such case each of
the following conditions is satisfied: no default by Lessee under this Lease
then remains uncured; Lessee shall provide Lessor with documentary, evidence
reasonably satisfactory, to Lessor that as of the effective date of such
transaction the assignee, sublessee or transferee has a positive net worth of at
least Five Million Dollars ($5,000,000); and the assignee, sublessee, or
transferee shall expressly assume and agree to perform all of the obligations of
Lessee under this Lease by a written assignment, acceptance of assignment and
assumption, a copy of which shall be delivered to Lessor concurrently with the
assignment, sublease, or transfer.

                  (f) For purposes of this Lease, the sale of Lessee's capital
stock through any public offering or over any stock exchange or other issuance
of securities for the purpose of raising financing shall not be deemed an
assignment, subletting, or any other transfer of this Lease or the Premises.

          56. JOINT AND SEVERAL LIABILITY. Wireless, Inc. and Momentum Laser,
Inc. shall be jointly and severally liable to Lessor for the payment of rent and
all other sums payable by Lessee and for the performance of all obligations of
Lessee hereunder. Lessee shall submit one rent check and one insurance
certificate in behalf of the Lessee entities.

          57. ADDENDUM TO GOVERN. In the event of any inconsistency between
the printed provisions of this Lease and this typed Addendum to Lease, the
provisions of this typed Addendum to Lease shall govern.

                                      Initials: Lessor /s/ MAB  Lessee  /s/ WEG
                                                       --------        ---------

                                       7
<PAGE>

         IN WITNESS WHEREOF, the parties have executed this Lease as of the date
set forth above.

                                     LESSOR
                                     W.F. BATTON & CO., INC.
                                     a California corporation

                                     By  /s/ Marie A. Batton
                                       ----------------------------------------
                                                         Its President

                                     By  /s/ Pamela Foley
                                       ----------------------------------------
                                                         Its Vice President

                                     LESSEE

                                     WIRELESS, INC.
                                     a California corporation

                                     By  /s/ William E. Gibson
                                       ----------------------------------------
                                                         Its  President/CEO

                                     By  /s/ illegible
                                       ----------------------------------------
                                                         Its  CFO

                                     MOMENTUM LASER, INC.
                                     a California corporation

                                     By  /s/ William E. Gibson
                                       ----------------------------------------
                                                         Its

                                     By  /s/ illegible
                                       ----------------------------------------
                                                         Its  VP/Secretary


                                       8
<PAGE>

                               LEGAL DESCRIPTION

All that certain real property situate in the City of Santa Clara, County of
Santa Clara, State of California, described as follows:

PARCEL ONE:

Parcel 107, as shown on that certain Map, which Map was filed for record in the
office of the Recorder of the County of Santa Clara, State of California, on
February 17, 1978 in Book 413 of Maps, page(s) 13, 14 and 15.

Reserving therefrom a reciprocal easement for ingress and egress lying over the
Westerly 30 feet of said land, as disclosed by that certain instrument executed
by W.F. Batton and Co., Inc., a California Corporation and W.F. Batton and Marie
A. Batton, Husband and Wife, recorded on July 7, 1983 in Book H 695, page 49,
Official Records.

PARCEL TWO:

An appurtenant easement for ingress and egress as disclosed by that certain
instrument executed by W.F. Barton and Co., Inc., a California Corporation and
W.F. Batton and Marie A. Batton, Husband and Wife recorded July 7, 1983 in Book
H 695, page 49, Official Records, and being described therein as follows:

An easement for ingress and egress over the Westerly 30 feet of Parcel 107, 108,
109, the Easterly 30 feet of Parcels 111, 112 and 113, and the Southerly 30 feet
of Parcel 108, and the Northerly 30 feet of Parcel 109, as said parcels are
shown on the Parcel Map Filed for record on February 17, 1978 in Book 413 of
Maps, at pages 13, 14 and 15, Santa Clara Records.

Excepting therefrom all that portion thereof lying within the bounds of the
above described Parcel One.

ARB No:  104-02-016.07
APN No:  104-50-401







                                   EXHIBIT "A"

<PAGE>





                               TENANT IMPROVEMENTS

ITEM                               DESCRIPTION

(A)       New carpet and new ceiling files and existing light fixtures to be in
          good operating condition

(B)       VCT Floor Covering, including cafeteria (not Including warehouse)

(C)       Painting (includes removing selected wallpaper; bathrooms and kitchen
          area; wood in lobby
          area to remain)

(D)       ADA Work (including door latches; bathrooms)

(E)       Refurbishment of kitchen/break area

(F)       Modification of five (5) existing offices

(G)       Seven (7) new offices in manufacturing area

(H)       All other tenant specific improvements which are requested by Lessee
          and approved by Lessor
















                                   EXHIBIT "B"