Document:

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                                   EXHIBIT 4.5

        THESE SECURITIES HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF
        1933, AS AMENDED, OR THE SECURITIES LAWS OF ANY STATE AND MAY NOT BE
        SOLD OR OFFERED FOR SALE IN THE ABSENCE OF AN EFFECTIVE REGISTRATION
        STATEMENT FOR THE SECURITIES OR AN OPINION OF COUNSEL OR OTHER EVIDENCE
        ACCEPTABLE TO THE COMPANY THAT SUCH REGISTRATION IS NOT REQUIRED.

No.     06-01-1                                                 US $1,620,000.00
        ----------------
                               AMBIENT CORPORATION

                    SECURED PROMISSORY NOTE DUE JUNE 24, 2006

        THIS NOTE is one of a duly authorized issue of up to $1,620,000 of
AMBIENT CORPORATION, a corporation organized and existing under the laws of the
State of Delaware (the "Company"), designated as its Secured Promissory Note
Series 06-01.

        FOR VALUE RECEIVED, the Company promises to pay to DOUBLE U MASTER FUND
L.P., the registered holder hereof (the "Holder"), the principal sum of One
Million Six Hundred Twenty Thousand and 00/100 Dollars (US $1,620,000.00) on the
Maturity Date (as defined below).

        TIME IS OF THE ESSENCE WITH RESPECT TO THE COMPANY'S FULFILLMENT OF ALL
OF ITS PAYMENT OBLIGATIONS HEREUNDER. The Holder shall not be required to give
the Company any notice of default of payment if any such payment is not timely
paid or otherwise satisfied. All provisions of this Note which apply in the
event of the Company's not timely fulfilling any of its payment obligations
hereunder shall apply whether or not such notice of default is given. The
Holder's giving of any notice to the Company shall not be deemed a waiver,
modification or amendment of this provision with respect to the failure referred
to in that notice or to any other failure by the Company timely to make any
other payment due hereunder.

        This Note or its predecessor was originally issued on January __, 2006
(the "Issue Date").

        This Note is being issued pursuant to the terms of the Bridge Loan
Agreement, dated as of January 18, 2006 (the "Bridge Loan Agreement"), to which
the Company and the Holder (or the Holder's predecessor in interest) are
parties. Capitalized terms not otherwise defined herein shall have the meanings
ascribed to them in the Bridge Loan Agreement.

        This Note is subject to the following additional provisions:

        1.      The Note will initially be issued in denominations determined by
the Company, but are exchangeable for an equal aggregate principal amount of
Note of different denominations, as requested by the Holder surrendering the
same. No service charge will be made for such registration or transfer or
exchange.

        2.      No interest will accrue on this Note until the Maturity Date. If
any portion of this Note is outstanding on the Maturity Date, interest at the
rate of fourteen percent (14%) per annum or the highest rate allowed by law,
whichever is lower, shall accrue on the outstanding principal of this Note from
the Maturity Date to and including the date of payment by the Company. Such
interest shall accrue on a daily basis and shall be payable in cash. The Holder
may demand payment of all or any part of this Note, together with accrued
interest, if any, and any other amounts due hereunder, as of the Maturity Date
or any date thereafter.

        3.      The Company shall be entitled to withhold from all payments of
principal of, and, if applicable, interest on, this Note any amounts required to
be withheld under the applicable provisions of the United States income tax laws
or other applicable laws at the time of such payments, and Holder shall execute
and deliver all required documentation in connection therewith.

        4.      This Note has been issued subject to investment representations
of the original purchaser hereof and may be transferred or exchanged only in
compliance with the Securities Act of 1933, as amended (the "Act"),

<PAGE>

and other
applicable state and foreign securities laws and the terms of the Bridge Loan
Agreement. In the event of any proposed transfer of this Note, the Company may
require, prior to issuance of a new Note in the name of such other person, that
it receive reasonable transfer documentation that is sufficient to evidence that
such proposed transfer complies with the Act and other applicable state and
foreign securities laws and the terms of the Bridge Loan Agreement. Prior to due
presentment for transfer of this Note, the Company and any agent of the Company
may treat the person in whose name this Note is duly registered on the Company's
Note Register as the owner hereof for the purpose of receiving payment as herein
provided and for all other purposes, whether or not this Note be overdue, and
neither the Company nor any such agent shall be affected by notice to the
contrary.

        5       (a)     The term "Maturity Date" means the earliest of (i) June
___, 2006 (the "Stated Maturity Date"), (ii) the New Transaction Threshold Date
(as defined below), or (iii) the Default Maturity Date (as defined below).

                (b)     The term "New Transaction Threshold Date" means the date
on which the Company consummates the first New Transaction in which the Company
receives, on a cumulative basis after taking into account the gross proceeds
from all prior New Transactions, if any, after the Issue Date, gross proceeds of
at least Two Million Dollars ($2,000,000). All such gross proceeds are
determined before deduction of any fees or other expenses or disbursements of
any kind in connection with the relevant New Transaction.

        6.      (a)     Any payment made on account of this Note shall be
applied in the following order of priority: (i) first, to any amounts due
hereunder other than principal and accrued interest, (ii) then, to accrued
interest, if any, through and including the date of payment, and (iii) then, to
principal of this Note.

                (b)     Subject to the provisions of Section 6(a) hereof, the
outstanding principal of this Note may be prepaid in whole or in part at the
option of the Company at any time prior to the Maturity Date.

        7.      All payments contemplated hereby are to be made "in cash" and
shall be made in immediately available good funds of United States of America
currency by wire transfer to an account designated in writing by the Holder to
the Company (which account may be changed by notice similarly given). For
purposes of this Note, the phrase "date of payment" means the date good funds
are received in the account designated by the notice which is then currently
effective.

        8.      (a)     Subject to the terms of the Bridge Loan Agreement, no
provision of this Note shall alter or impair the obligation of the Company,
which is absolute and unconditional, to pay the principal of, and, if
applicable, interest on, this Note at the time, place, and rate, and in the coin
or currency, as herein prescribed. This Note is a direct obligation of the
Company.

                (b)     Payment of this Note is secured pursuant to the terms of
the Security Interest Agreement, dated as of January 18, 2006 (the "Security
Interest Agreement"), executed by the Company, as debtor, in favor of the
Lender, as secured party. The terms of the Security Interest Agreement are
incorporated herein by reference.

        9.      No recourse shall be had for the payment of the principal of,
or, if applicable, the interest on, this Note, or for any claim based hereon, or
otherwise in respect hereof, against any incorporator, shareholder, officer or
director, as such, past, present or future, of the Company or any successor
corporation, whether by virtue of any constitution, statute or rule of law, or
by the enforcement of any assessment or penalty or otherwise, all such liability
being, by the acceptance hereof and as part of the consideration for the issue
hereof, expressly waived and released.

        10.     The Holder of the Note, by acceptance hereof, agrees that this
Note is being acquired for investment and that such Holder will not offer, sell
or otherwise dispose of this Note except under circumstances which will not
result in a violation of the Act or any applicable state Blue Sky or foreign
laws or similar laws relating to the sale of securities.

        11.     Any notice required or permitted hereunder shall be given in
manner provided in the Section headed "NOTICES" in the Bridge Loan Agreement,
the terms of which are incorporated herein by reference.

<PAGE>

        12.     (a)     This Note shall be governed by and interpreted in
accordance with the laws of the State of Delaware for contracts to be wholly
performed in such state and without giving effect to the principles thereof
regarding the conflict of laws. Each of the parties consents to the exclusive
jurisdiction of the federal courts whose districts encompass any part of the
City of Wilmington or the state courts of the State of Delaware sitting in the
City of Wilmington in connection with any dispute arising under this Note and
hereby waives, to the maximum extent permitted by law, any objection, including
any objection based on FORUM NON CONVENIENS, to the bringing of any such
proceeding in such jurisdictions. To the extent determined by such court, the
Company shall reimburse the Holder for any reasonable legal fees and
disbursements incurred by the Holder in enforcement of or protection of any of
its rights under this Note.

                (b)     JURY TRIAL WAIVER. The Company and the Holder hereby
waive a trial by jury in any action, proceeding or counterclaim brought by
either of the Parties hereto against the other in respect of any matter arising
out of or in connection with this Note.

        13.     (a)     The following shall constitute an "Event of Default":

                                i.      The Company shall default in the timely
                        payment of principal on this Note or any other amount
                        due hereunder (without the requirement of any further
                        notice with respect thereto from the Holder); or

                                ii.     Any of the representations or warranties
                        made by the Company herein, in the Bridge Loan Agreement
                        or any of the other Transaction Agreements shall be
                        false or misleading in any material respect at the time
                        made; or

                                iii.    The Company shall fail to perform or
                        observe, in any material respect, any other covenant,
                        term, provision, condition, agreement or obligation of
                        any Note in this series and such failure shall continue
                        uncured for a period of thirty (30) days after the
                        Company's receipt of written notice thereof from the
                        Holder; or

                                iv.     The Company shall fail to perform or
                        observe, in any material respect, any covenant, term,
                        provision, condition, agreement or obligation of the
                        Company under any of the Transaction Agreements and such
                        failure shall continue uncured for a period of thirty
                        (30) days after the Company's receipt of written notice
                        thereof from the Holder; or

                                v.      The Company shall (1) admit in writing
                        its inability to pay its debts generally as they mature;
                        (2) make an assignment for the benefit of creditors or
                        commence proceedings for its dissolution; or (3) apply
                        for or consent to the appointment of a trustee,
                        liquidator or receiver for its or for a substantial part
                        of its property or business; or

                                vi.     A trustee, liquidator or receiver shall
                        be appointed for the Company or for a substantial part
                        of its property or business without its consent and
                        shall not be discharged within sixty (60) days after
                        such appointment; or

                                vii.    Any governmental agency or any court of
                        competent jurisdiction at the instance of any
                        governmental agency shall assume custody or control of
                        the whole or any substantial portion of the properties
                        or assets of the Company and shall not be dismissed
                        within sixty (60) days thereafter; or viii. Any money
                        judgment, writ or warrant of attachment, or similar
                        process in excess of Seven Hundred Fifty Thousand
                        ($750,000) Dollars in the aggregate shall be entered or
                        filed against the Company or any of its properties or
                        other assets and shall remain unpaid, unvacated,
                        unbonded or unstayed for a period of sixty (60) days or
                        in any event later than five (5) days prior to the date
                        of any proposed sale thereunder; or

                                ix.     Bankruptcy, reorganization, insolvency
                        or liquidation proceedings or other proceedings for
                        relief under any bankruptcy law or any law for the
                        relief of debtors

<PAGE>

                        shall be instituted by or against the Company and, if
                        instituted against the Company, shall not be dismissed
                        within sixty (60) days after such institution or the
                        Company shall by any action or answer approve of,
                        consent to, or acquiesce in any such proceedings or
                        admit the material allegations of, or default in
                        answering a petition filed in any such proceeding.

                (b)     If an Event of Default shall have occurred and is
continuing, then, or at any time thereafter, and in each and every such case,
unless such Event of Default shall have been cured or waived in writing by the
Holder (which waiver shall not be deemed to be a waiver of any subsequent
default), at the option of the Holder and in the Holder's sole discretion, the
Holder may consider this Note immediately due and payable (and the Maturity Date
shall be accelerated accordingly; the "Default Maturity Date"), without
presentment, demand, protest or notice of any kinds, all of which are hereby
expressly waived, anything herein or in any note or other instruments contained
to the contrary notwithstanding, and the Holder may immediately enforce any and
all of the Holder's rights and remedies provided herein or any other rights or
remedies afforded by law, including, but not necessarily limited to, the
equitable remedy of specific performance and injunctive relief.

        14.     In the event for any reason, any payment by or act of the
Company or the Holder shall result in payment of interest which would exceed the
limit authorized by or be in violation of the law of the jurisdiction applicable
to this Note, then IPSO FACTO the obligation of the Company to pay interest or
perform such act or requirement shall be reduced to the limit authorized under
such law, so that in no event shall the Company be obligated to pay any such
interest, perform any such act or be bound by any requirement which would result
in the payment of interest in excess of the limit so authorized. In the event
any payment by or act of the Company shall result in the extraction of a rate of
interest in excess of a sum which is lawfully collectible as interest, then such
amount (to the extent of such excess not returned to the Company) shall, without
further agreement or notice between or by the Company or the Holder, be deemed
applied to the payment of principal, if any, hereunder immediately upon receipt
of such excess funds by the Holder, with the same force and effect as though the
Company had specifically designated such sums to be so applied to principal and
the Holder had agreed to accept such sums as an interest-free prepayment of this
Note. If any part of such excess remains after the principal has been paid in
full, whether by the provisions of the preceding sentences of this Section or
otherwise, such excess shall be deemed to be an interest-free loan from the
Company to the Holder, which loan shall be payable immediately upon demand by
the Company. The provisions of this Section shall control every other provision
of this Note.

        IN WITNESS WHEREOF, the Company has caused this instrument to be duly
executed by an officer thereunto duly authorized.

Dated:  January , 2006

                               AMBIENT CORPORATION

        By:/s/ John J. Joyce

        John J. Joyce
        (Print Name)

        President and Chief Executive Officer
        (Title)<PAGE>

                                  EXHIBIT 10.8

                              BRIDGE LOAN AGREEMENT

        THIS BRIDGE LOAN AGREEMENT, dated as of January 18, 2006, is entered
into by and between AMBIENT CORPORATION, a Delaware corporation with
headquarters located at 79 Chapel Street, Newton, Massachusetts 02458 (the
"Company"), and each individual or entity named on an executed counterpart of
the signature page hereto (each such signatory is referred to as a "Buyer")
(each agreement with a Buyer being deemed a separate and independent agreement
between the Company and such Buyer, except that each Buyer acknowledges and
consents to the rights granted to each other Buyer [each, an "Other Buyer"]
under such agreement and the Transaction Agreements, as defined below, referred
to therein).

                              W I T N E S S E T H:

        WHEREAS, the Company and the Buyer are executing and delivering this
Agreement in accordance with and in reliance upon the exemption from securities
registration for offers and sales to accredited investors afforded, INTER ALIA,
by Rule 506 under Regulation D ("Regulation D") as promulgated by the United
States Securities and Exchange Commission (the "SEC") under the Securities Act
of 1933, as amended (the "1933 Act"), and/or Section 4(2) of the 1933 Act; and

        WHEREAS, each Buyer wishes to lend funds in the amount of the Purchase
Price (as defined below) to the Company, subject to and upon the terms and
conditions of this Agreement and acceptance of this Agreement by the Company,
the repayment of which will be represented by a Secured Promissory Note of the
Company (the "Note"), on the terms and conditions referred to herein; and

        WHEREAS, in connection with the loan to be made by the Buyer, the
Company has agreed to issue the Note and the Warrant (as defined below) to the
Buyer;

        NOW THEREFORE, in consideration of the premises and the mutual covenants
contained herein and other good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged, the parties agree as follows:

        1.      AGREEMENT TO PURCHASE; PURCHASE PRICE.

        A.      PURCHASE.

        (i)     Subject to the terms and conditions of this Agreement and the
other Transaction Agreements (as defined below), the Buyer hereby agrees to loan
to the Company the principal amount specified on the Buyer's signature page of
this Agreement (the "Purchase Price"), out of the aggregate amount being loaned
by all Buyers of US $1,500,000 (the "Aggregate Purchase Price").

        (ii)    The obligation to repay the loan of the relevant Purchase Price
from the Buyer shall be evidenced by the Company's issuance of one or more Notes
to the Buyer in the principal amount of one hundred eight percent (108%) of the
Purchase Price paid by the Buyer on or in connection with the Closing Date. Each
Note shall be payable on the date (the "Stated Maturity Date") which is one
hundred fifty (150) days after the Closing Date or the date on which the New
Transaction Threshold (as defined in the Note) occurs. Each Note shall be in the
form of ANNEX I annexed hereto. Repayment of the Note shall be secured under the
terms of a Security Interest Agreement between the Company, as debtor, and the
Buyer, as secured party (the "Security Interest Agreement"), substantially in
the form annexed hereto as ANNEX V.

<PAGE>

        (iii)   In consideration of the loan to be made by the Buyer, the
Company will issue to such Buyer the Warrant to purchase the number of shares of
the Company's Common Stock as provided in Section 4 hereof.

        (iv)    The loan to be made by the Buyer and the issuance of the Note
and the Warrant to the Buyer and the other transactions contemplated hereby are
sometimes referred to herein and in the other Transaction Agreements as the
purchase and sale of the Securities (as defined below), and are referred to
collectively as the "Transactions."

        B.      CERTAIN DEFINITIONS. As used herein, each of the following terms
has the meaning set forth below, unless the context otherwise requires:

        "Affiliate" means, with respect to a specific Person referred to in the
relevant provision, another Person who or which controls or is controlled by or
is under common control with such specified Person.

        "Buyer Control Person" means each director, executive officer, promoter,
and such other Persons as may be deemed in control of the Buyer pursuant to Rule
405 under the 1933 Act or Section 20 of the 1934 Act.

        "Buyer's Allocable Share" means the fraction, of which the numerator is
the Buyer's Purchase Price and the denominator is the Aggregate Purchase Price.

        "Certificates" means the ink-signed Note and the Warrant, each duly
executed by the Company and issued on the Closing Date in the name of the Buyer.

        "Closing Date" means the date of the closing of the Transactions, as
provided herein.

        "Company Control Person" means each director, executive officer,
promoter, and such other Persons as may be deemed in control of the Company
pursuant to Rule 405 under the 1933 Act or Section 20 of the 1934 Act (as
defined below).

        "Disclosure Letter" means a letter and any modifications thereof, the
latest of which is dated at least one Trading Day prior to the Closing Date,
from the Company to the Buyer; provided, however, that the Disclosure Letter
shall be arranged in sections corresponding to the identified Sections of this
Agreement, but the disclosure in any such section of the Disclosure Letter shall
qualify other provisions in this Agreement to the extent that it would be
readily apparent to an informed reader from a reading of such section of the
Disclosure Letter that it is also relevant to other provisions of this
Agreement.

        "Escrow Agent" means Krieger & Prager LLP, the escrow agent identified
in the Joint Escrow Instructions attached hereto as ANNEX II (the "Joint Escrow
Instructions").

        "Escrow Funds" means the Purchase Price delivered to the Escrow Agent as
contemplated by Sections 1(c) and (d) hereof.

        "Escrow Property" means the Escrow Funds and the Certificates delivered
to the Escrow Agent as contemplated by Section 1(c) hereof.

        "Holder" means the Person holding the relevant Securities at the
relevant time.

        "Last Audited Date" means December 31, 2004.

        "Material Adverse Effect" means an event or combination of events, which
individually or in the aggregate, would reasonably be expected to (x) materially
adversely affect the legality, validity or enforceability of the Purchased
Securities or any of the Transaction Agreements, (y) have or result in a
material adverse effect on the results of operations, assets, or financial
condition of the Company and its subsidiaries, taken as a whole, or (z)

<PAGE>

materially adversely impair the Company's ability to perform fully on a timely
basis its material obligations under any of the Transaction Agreements or the
transactions contemplated thereby.

        "New Common Stock" means shares of Common Stock and/or securities
convertible into, and/or other rights exercisable for, Common Stock, which are
offered or sold in a New Transaction.

        "New Investor" means the third party investor, purchaser or lender
(howsoever denominated) in a New Transaction.

        "New Transaction" means

        (i)     the offer or sale of New Common Stock by or on behalf of the
Company to a New Investor and/or

        (ii)    the grant of a security interest in or pledge of (x) any or all
of the Company's assets by the Company and/or (y) shares of the Company's Common
Stock or securities convertible into or exercisable for the Company's Common
Stock by any other party in connection with a transaction in which the Company
borrows or is otherwise obligated to pay funds to a third party, in a
transaction offered or consummated after the date hereof; provided, however,
that it is specifically understood that the term "New Transaction" (1) includes,
but is not limited to, a sale of Common Stock or of a security convertible into
Common Stock or an equity or credit line transaction, but (2) does not include
(a) the issuance of Common Stock upon the exercise or conversion of options,
warrants or convertible securities outstanding on the date hereof, or in respect
of any other financing agreements as in effect on the date hereof and identified
in the Disclosure Letter (provided the same is not amended after the date of the
Disclosure Letter) or the Company SEC Documents (provided the same is not
amended after the date hereof), (b) the issuance of Common Stock pursuant to an
Employee Stock Option Plan (an "ESOP") of the Company, such ESOP having been
properly approved by the shareholders of the Company, (c) the issuance of Common
Stock pursuant to a non-employee director or consultants' stock option plan of
the Company, (d) the issuance of Common Stock upon the exercise of any options
or warrants referred to in the preceding clauses of this paragraph (provided the
same is not amended after the date hereof), or (e) the issuance of shares to a
Strategic Partner.

        "Person" means any living person or any entity, such as, but not
necessarily limited to, a corporation, partnership or trust.

        "Principal Trading Market" means the Over the Counter Bulletin Board or
such other market on which the Common Stock is principally traded at the
relevant time, but shall not included the "pink sheets."

        "Purchased Securities" means the Note and the Warrant.

        "Registrable Securities" means the Warrant Shares, unless such shares
can then be sold by the Holder under Rule 144(k) promulgated under the 1933 Act.

        "Registration Rights Provisions" means the piggy-back registration
rights contemplated by the terms of this Agreement, including, but not
necessarily limited to, Section 4(h) hereof, and of the other Transaction
Agreements.

        "Registration Statement" means an effective registration statement
covering the Registrable Securities.

        "Securities" means the Note, the Warrant and the Shares.

        "Shares" means the shares of Common Stock representing any of the
Warrant Shares.

<PAGE>

        "State of Incorporation" means Delaware.

        "Strategic Partner" means a third party, whether or not currently
affiliated with the Company, which party (i) is engaged in a business which is
the business in which the Company is engaged or a similar or related business,
and (ii) either (a) subsequently purchases equity securities of the Company (or
securities convertible into equity securities of the Company), or (b) enters
into an agreement for one or more of the following: the licensing by the Company
of all or any portion of its technology to such third party, the licensing by
such third party of all or any portion of its technology to the Company, or any
other coordination of all or a portion of their respective business activities
or operations by the Company and such third party.

        "Trading Day" means any day during which the Principal Trading Market
shall be open for business.

        "Transfer Agent" means, at any time, the transfer agent for the
Company's Common Stock.

        "Transaction Agreements" means this Bridge Loan Agreement, the Note, the
Security Interest Agreement, the Joint Escrow Instructions, and the Warrant, and
includes all ancillary documents referred to in those agreements.

        "Warrant" means the warrant issued to the Buyer as contemplated by
Section 4 of this Agreement.

        "Warrant Shares" means the shares of Common Stock issuable upon exercise
of the Warrant.

        C.      FORM OF PAYMENT; DELIVERY OF CERTIFICATES.

        (i)     The Buyer shall pay the Purchase Price by delivering immediately
available good funds in United States Dollars to the Escrow Agent no later than
the date prior to the Closing Date.

        (ii)    No later than the Closing Date, but in any event promptly
following payment by the Buyer to the Escrow Agent of the Purchase Price, the
Company shall deliver the Certificates, each duly executed on behalf of the
Company and issued in the name of the Buyer, to the Escrow Agent.

        (iii)   By signing this Agreement, each of the Buyer and the Company,
subject to acceptance by the Escrow Agent, agrees to all of the terms and
conditions of, and becomes a party to, the Joint Escrow Instructions, all of the
provisions of which are incorporated herein by this reference as if set forth in
full.

        D.      METHOD OF PAYMENT. Payment into escrow of the Purchase Price
shall be made by wire transfer of funds to:

            Bank of New York
            350 Fifth Avenue
            New York, New York 10001

            ABA# 021000018
            For credit to the account of Krieger & Prager LLP
            Account No.: [To be provided to the Buyer by Krieger & Prager LLP]
            Re:   Ambient 1/06 Bridge Transaction
            For:  [Name of Buyer]

        2.      LENDER REPRESENTATIONS, WARRANTIES, ETC.; ACCESS TO INFORMATION;
INDEPENDENT INVESTIGATION.

        The Buyer represents and warrants to, and covenants and agrees with, the
Company as follows:

<PAGE>

        A.      Without limiting Buyer's right to sell the Securities pursuant
to an effective registration statement or otherwise in compliance with the 1933
Act, the Buyer is purchasing the Securities for its own account for investment
only and not with a view towards the public sale or distribution thereof and not
with a view to or for sale in connection with any distribution thereof.

        B.      The Buyer is (i) an "accredited investor" as that term is
defined in Rule 501 of the General Rules and Regulations under the 1933 Act by
reason of Rule 501(a)(3), (ii) experienced in making investments of the kind
described in this Agreement and the related documents, (iii) able, by reason of
the business and financial experience of its officers (if an entity) and
professional advisors (who are not affiliated with or compensated in any way by
the Company or any of its Affiliates or selling agents), to protect its own
interests in connection with the transactions described in this Agreement, and
the related documents, and to evaluate the merits and risks of an investment in
the Securities, and (iv) able to afford the entire loss of its investment in the
Securities.

        C.      All subsequent offers and sales of the Securities by the Buyer
shall be made pursuant to registration of the relevant Securities under the 1933
Act or pursuant to an exemption from registration.

        D.      The Buyer understands that the Securities are being offered and
sold to it in reliance on specific exemptions from the registration requirements
of the 1933 Act and state securities laws and that the Company is relying upon
the truth and accuracy of, and the Buyer's compliance with, the representations,
warranties, agreements, acknowledgments and understandings of the Buyer set
forth herein in order to determine the availability of such exemptions and the
eligibility of the Buyer to acquire the Securities.

        E.      The Buyer and its advisors, if any, have been furnished with or
have been given access to all materials relating to the business, finances and
operations of the Company and materials relating to the offer and sale of the
Securities which have been requested by the Buyer, including those set forth on
any annex attached hereto. The Buyer and its advisors, if any, have been
afforded the opportunity to ask questions of the Company and its management and
have received complete and satisfactory answers to any such inquiries. Without
limiting the generality of the foregoing, the Buyer has also had the opportunity
to obtain and to review the Company's filings on EDGAR listed on ANNEX VI hereto
(the documents listed on such Annex VI, to the extent available on EDGAR or
otherwise provided to the Buyer as indicated on said Annex VI, collectively, the
"Company's SEC Documents").

        F.      The Buyer understands that its investment in the Securities
involves a high degree of risk.

        G.      The Buyer hereby represents that, in connection with its
purchase of the Securities, it has not relied on any statement or representation
by the Company or any of its officers, directors and employees or any of its
attorneys or agents, except as specifically set forth herein.

        H.      The Buyer understands that no United States federal or state
agency or any other government or governmental agency has passed on or made any
recommendation or endorsement of the Securities.

        I.      This Agreement and the other Transaction Agreements to which the
Buyer is a party, and the transactions contemplated thereby, have been duly and
validly authorized, executed and delivered on behalf of the Buyer and are valid
and binding agreements of the Buyer enforceable in accordance with their
respective terms, subject as to enforceability to general principles of equity
and to bankruptcy, insolvency, moratorium and other similar laws affecting the
enforcement of creditors' rights generally.

        3.      COMPANY REPRESENTATIONS, ETC. The Company represents and
warrants to the Buyer as of the date hereof and as of the Closing Date that,
except as otherwise provided in the Disclosure Letter or in the Company's SEC
Documents:

        A.      RIGHTS OF OTHERS AFFECTING THE TRANSACTIONS. There are no
preemptive rights of any shareholder of the Company, as such, to acquire the
Note, the Warrant or the Shares. No party has a currently

<PAGE>

exercisable right of first refusal which would be applicable to any or all of
the transactions contemplated by the Transaction Agreements.

        B.      STATUS. The Company is a corporation duly organized, validly
existing and in good standing under the laws of the State of Incorporation and
has the requisite corporate power to own its properties and to carry on its
business as now being conducted. The Company is duly qualified as a foreign
corporation to do business and is in good standing in each jurisdiction where
the nature of the business conducted or property owned by it makes such
qualification necessary, other than those jurisdictions in which the failure to
so qualify would not have or result in a Material Adverse Effect. The Company
has registered its stock and is obligated to file reports pursuant to Section 12
or Section 15(d) of the Securities and Exchange Act of 1934, as amended (the
"1934 Act"). The Common Stock is quoted on the Principal Trading Market. The
Company has received no notice, either oral or written, with respect to the
continued eligibility of the Common Stock for such quotation on the Principal
Trading Market, and the Company has maintained all requirements on its part for
the continuation of such quotation.

        C.      AUTHORIZED SHARES.

        (i)     The authorized capital stock of the Company consists of
300,000,000 shares of Common Stock, $.001 par value per share, of which
approximately 66,554,381 are outstanding as of January 18, 2006.

        (ii)    There are no outstanding securities which are convertible into
shares of Common Stock, whether such conversion is currently exercisable or
exercisable only upon some future date or the occurrence of some event in the
future. If any such securities are listed on the Disclosure Letter, the number
or amount of each such outstanding convertible security and the conversion terms
are set forth in said Disclosure Letter.

        (iii)   All issued and outstanding shares of Common Stock have been duly
authorized and validly issued and are fully paid and non-assessable. The Company
has sufficient authorized and unissued shares of Common Stock as would be
necessary to effect the issuance of the Shares on the Closing Date, were the
Warrant fully exercised on that date.

        (iv)    As of the Closing Date, the Shares shall have been duly
authorized by all necessary corporate action on the part of the Company, and,
when issued upon exercise of the Warrant, in accordance with its terms, will
have been duly and validly issued, fully paid and non-assessable and will not
subject the Holder thereof to personal liability by reason of being such Holder.

        D.      TRANSACTION AGREEMENTS AND STOCK. This Agreement and each of the
other Transaction Agreements, and the transactions contemplated thereby, have
been duly and validly authorized by the Company, this Agreement has been duly
executed and delivered by the Company and this Agreement is, and the Note, the
Warrant and each of the other Transaction Agreements, when executed and
delivered by the Company, will be, valid and binding agreements of the Company
enforceable in accordance with their respective terms, subject as to
enforceability to general principles of equity and to bankruptcy, insolvency,
moratorium, and other similar laws affecting the enforcement of creditors'
rights generally.

        E.      NON-CONTRAVENTION. The execution and delivery of this Agreement
and each of the other Transaction Agreements by the Company, the issuance of the
Securities, and the consummation by the Company of the other transactions
contemplated by this Agreement, the Note, the Warrant and the other Transaction
Agreements do not and will not conflict with or result in a breach by the
Company of any of the terms or provisions of, or constitute a default under (i)
the certificate of incorporation or by-laws of the Company, each as currently in
effect, (ii) any indenture, mortgage, deed of trust, or other material agreement
or instrument to which the Company is a party or by which it or any of its
properties or assets are bound, including any listing agreement for the Common
Stock except as herein set forth, or (iii) to its knowledge, any existing
applicable law, rule, or regulation or any applicable decree, judgment, or order
of any court, United States federal or state regulatory body, administrative
agency, or other governmental body having jurisdiction over the Company or any
of its properties or assets, except such conflict, breach or default which would
not have or result in a Material Adverse Effect.

<PAGE>

        F.      APPROVALS. No authorization, approval or consent of any court,
governmental body, regulatory agency, self-regulatory organization, or stock
exchange or market or the shareholders of the Company is required to be obtained
by the Company for the issuance and sale of the Securities to the Buyer as
contemplated by this Agreement, except such authorizations, approvals and
consents that have been obtained.

        G.      FILINGS. None of the Company's SEC Documents contained, at the
time they were filed, any untrue statement of a material fact or omitted to
state any material fact required to be stated therein or necessary to make the
statements made therein in light of the circumstances under which they were
made, not misleading. Since November 1, 2004, the Company has timely filed all
requisite forms, reports and exhibits thereto required to be filed by the
Company with the SEC.

        H.      ABSENCE OF CERTAIN CHANGES. Since the Last Audited Date, there
has been no Material Adverse Effect, except as disclosed in the Company's SEC
Documents. Since the Last Audited Date, except as provided in the Company's SEC
Documents, the Company has not (i) incurred or become subject to any material
liabilities (absolute or contingent) except liabilities incurred in the ordinary
course of business consistent with past practices; (ii) discharged or satisfied
any material lien or encumbrance or paid any material obligation or liability
(absolute or contingent), other than current liabilities paid in the ordinary
course of business consistent with past practices; (iii) declared or made any
payment or distribution of cash or other property to shareholders with respect
to its capital stock, or purchased or redeemed, or made any agreements to
purchase or redeem, any shares of its capital stock; (iv) sold, assigned or
transferred any other tangible assets, or canceled any debts owed to the Company
by any third party or claims of the Company against any third party, except in
the ordinary course of business consistent with past practices; (v) waived any
rights of material value, whether or not in the ordinary course of business, or
suffered the loss of any material amount of existing business; (vi) made any
increases in employee compensation, except in the ordinary course of business
consistent with past practices; or (vii) experienced any material problems with
labor or management in connection with the terms and conditions of their
employment.

        I.      FULL DISCLOSURE. To the best of the Company's knowledge, there
is no fact known to the Company (other than general economic conditions known to
the public generally or as disclosed in the Company's SEC Documents) that has
not been disclosed in writing to the Buyer that would reasonably be expected to
have or result in a Material Adverse Effect.

        J.      ABSENCE OF LITIGATION. There is no action, suit, proceeding,
inquiry or investigation before or by any court, public board or body pending
or, to the knowledge of the Company, threatened against or affecting the Company
before or by any governmental authority or nongovernmental department,
commission, board, bureau, agency or instrumentality or any other person,
wherein an unfavorable decision, ruling or finding would have a Material Adverse
Effect or which would adversely affect the validity or enforceability of, or the
authority or ability of the Company to perform its obligations under, any of the
Transaction Agreements. The Company is not aware of any valid basis for any such
claim that (either individually or in the aggregate with all other such events
and circumstances) could reasonably be expected to have a Material Adverse
Effect. There are no outstanding or unsatisfied judgments, orders, decrees,
writs, injunctions or stipulations to which the Company is a party or by which
it or any of its properties is bound, that involve the transaction contemplated
herein or that, alone or in the aggregate, could reasonably be expect to have a
Material Adverse Effect.

        K.      ABSENCE OF EVENTS OF DEFAULT. Except as set forth in Section
3(e) hereof, (i) neither the Company nor any of its subsidiaries is in default
in the performance or observance of any material obligation, agreement, covenant
or condition contained in any material indenture, mortgage, deed of trust or
other material agreement to which it is a party or by which its property is
bound, and (ii) no Event of Default (or its equivalent term), as defined in the
respective agreement to which the Company or its subsidiary is a party, and no
event which, with the giving of notice or the passage of time or both, would
become an Event of Default (or its equivalent term) (as so defined in such
agreement), has occurred and is continuing, which would have a Material Adverse
Effect.

<PAGE>

        L.      ABSENCE OF CERTAIN COMPANY CONTROL PERSON ACTIONS OR EVENTS. To
the Company's knowledge, none of the following has occurred during the past five
(5) years with respect to a Company Control Person:

        (1)     A petition under the federal bankruptcy laws or any state
insolvency law was filed by or against, or a receiver, fiscal agent or similar
officer was appointed by a court for the business or property of such Company
Control Person, or any partnership in which he was a general partner at or
within two years before the time of such filing, or any corporation or business
association of which he was an executive officer at or within two years before
the time of such filing;

        (2)     Such Company Control Person was convicted in a criminal
proceeding or is a named subject of a pending criminal proceeding (excluding
traffic violations and other minor offenses);

        (3)     Such Company Control Person was the subject of any order,
judgment or decree, not subsequently reversed, suspended or vacated, of any
court of competent jurisdiction, permanently or temporarily enjoining him from,
or otherwise limiting, the following activities:

        (i)     acting as an investment advisor, underwriter, broker or dealer
in securities, or as an affiliated person, director or employee of any
investment company, bank, savings and loan association or insurance company, as
a futures commission merchant, introducing broker, commodity trading advisor,
commodity pool operator, floor broker, any other Person regulated by the
Commodity Futures Trading Commission ("CFTC") or engaging in or continuing any
conduct or practice in connection with such activity;

        (ii)    engaging in any type of business practice; or

        (iii)   engaging in any activity in connection with the purchase or sale
of any security or commodity or in connection with any violation of federal or
state securities laws or federal commodities laws;

        (4)     Such Company Control Person was the subject of any order,
judgment or decree, not subsequently reversed, suspended or vacated, of any
federal or state authority barring, suspending or otherwise limiting for more
than 60 days the right of such Company Control Person to engage in any activity
described in paragraph (3) of this item, or to be associated with Persons
engaged in any such activity; or

        (5)     Such Company Control Person was found by a court of competent
jurisdiction in a civil action or by the CFTC or SEC to have violated any
federal or state securities law, and the judgment in such civil action or
finding by the CFTC or SEC has not been subsequently reversed, suspended, or
vacated.

        M.      NO UNDISCLOSED LIABILITIES OR EVENTS. To the best of the
Company's knowledge, the Company has no liabilities or obligations other than
those disclosed in the Transaction Agreements or the Company's SEC Documents or
those incurred in the ordinary course of the Company's business since the Last
Audited Date, or which individually or in the aggregate, do not or would not
have a Material Adverse Effect. No event or circumstance has occurred or exists
with respect to the Company or its properties, business, operations, condition
(financial or otherwise), or results of operations, which, under applicable law,
rule or regulation, requires public disclosure or announcement prior to the date
hereof by the Company but which has not been so publicly announced or disclosed.
There are no proposals currently under consideration or currently anticipated to
be under consideration by the Board of Directors or the executive officers of
the Company which proposal would (x) change the articles or certificate of
incorporation or other charter document or by-laws of the Company, each as
currently in effect, with or without shareholder approval, which change would
reduce or otherwise adversely affect the rights and powers of the shareholders
of the Common Stock or (y) materially or substantially change the business,
assets or capital of the Company, including its interests in subsidiaries.

<PAGE>

        N.      NO INTEGRATED OFFERING. Neither the Company nor any of its
Affiliates nor any Person acting on its or their behalf has, directly or
indirectly, at any time since July 1, 2005, made any offer or sales of any
security or solicited any offers to buy any security under circumstances that
would eliminate the availability of the exemption from registration under
Regulation D in connection with the offer and sale of the Securities as
contemplated hereby.

        O.      DILUTION. The number of shares issuable upon exercise of the
Warrant may have a dilutive effect on the ownership interests of the other
shareholders (and Persons having the right to become shareholders) of the
Company. The Company's executive officers and directors fully understand the
nature of the Securities being sold hereby and recognize that they have such a
potential dilutive effect. The Company specifically acknowledges that its
obligation to issue the Warrant Shares upon exercise of the Warrant is binding
upon the Company and enforceable regardless of the dilution such issuance may
have on the ownership interests of other shareholders of the Company, and the
Company will honor such obligation, including honoring every Notice of Exercise
(as contemplated by the Warrant), unless the Company is subject to an injunction
(which injunction was not sought by the Company) prohibiting the Company from
doing so.

        P.      FEES TO BROKERS, FINDERS AND OTHERS. The Company has taken no
action which would give rise to any claim by any Person for brokerage
commission, finder's fees or similar payments by Buyer relating to this
Agreement or the transactions contemplated hereby. Notwithstanding the
foregoing, the Company acknowledges that it has agreed to pay the Due Diligence
Fees to the Due Diligence Reviewers (as those terms are defined in ANNEX VII
hereto) for providing due diligence services to the Buyers in connection with
the transactions contemplated hereby. Buyer shall have no obligation with
respect to such fees or with respect to any claims made by or on behalf of other
Persons for fees of a type contemplated in this paragraph that may be due in
connection with the transactions contemplated hereby. The Company shall
indemnify and hold harmless each of the Buyer, its employees, officers,
directors, agents, and partners, and their respective Affiliates, from and
against all claims, losses, damages, costs (including the costs of preparation
and attorney's fees) and expenses suffered in respect of any such claimed or
existing fees, as and when incurred.

        Q.      CONFIRMATION. The Company confirms that all statements of the
Company contained herein shall survive acceptance of this Agreement by the Buyer
for a period of eighteen (18) months from the Closing Date. The Company agrees
that, if any events occur or circumstances exist prior to the Closing Date or
the release of the Purchase Price to the Company which would make any of the
Company's representations, warranties, agreements or other information set forth
herein materially untrue or materially inaccurate as of such date, the Company
shall immediately notify the Buyer (directly or through its counsel, if any) and
the Escrow Agent in writing prior to such date of such fact, specifying which
representation, warranty or covenant is affected and the reasons therefor.

        4.      CERTAIN COVENANTS AND ACKNOWLEDGMENTS.

        A.      TRANSFER RESTRICTIONS.

        (i)     The Buyer acknowledges that (1) the Securities have not been and
are not being registered under the provisions of the 1933 Act and, except as
provided in the Registration Rights Provisions or otherwise included in an
effective registration statement, the Shares have not been and are not being
registered under the 1933 Act, and may not be transferred unless (A)
subsequently registered thereunder or (B) the Buyer shall have delivered to the
Company an opinion of counsel, reasonably satisfactory in form, scope and
substance to the Company, to the effect that the Securities to be sold or
transferred may be sold or transferred pursuant to an exemption from such
registration; (2) any sale of the Securities made in reliance on Rule 144
promulgated under the 1933 Act may be made only in accordance with the terms of
said Rule and further, if said Rule is not applicable, any resale of such
Securities under circumstances in which the seller, or the Person through whom
the sale is made, may be deemed to be an underwriter, as that term is used in
the 1933 Act, may require compliance with some other exemption under the 1933
Act or the rules and regulations of the SEC thereunder; and (3) neither the
Company nor

<PAGE>

any other Person is under any obligation to register the Securities (other than
pursuant to the Registration Rights Provisions) under the 1933 Act or to comply
with the terms and conditions of any exemption thereunder.

        (ii)    In addition to the foregoing, and not in lieu thereof, the Buyer
agrees that, without the express written consent of the Company in each
instance, it will not transfer any of the Purchased Securities to any Person (x)
which is known to the Buyer to be in substantially the same business as the
Company or which the Company reasonably identifies as a competitor, or (y) which
is known to be a subsidiary or affiliate of such a Person.

        B.      RESTRICTIVE LEGEND. The Buyer acknowledges and agrees that,
until such time as the relevant Shares have been registered under the 1933 Act,
as contemplated by the Registration Rights Provisions and sold in accordance
with an effective Registration Statement or otherwise in accordance with another
effective registration statement, the certificates and other instruments
representing any of the Securities shall bear a restrictive legend in
substantially the following form (and a stop-transfer order may be placed
against transfer of any such Securities):

        THESE SECURITIES HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF
        1933, AS AMENDED, OR THE SECURITIES LAWS OF ANY STATE AND MAY NOT BE
        SOLD OR OFFERED FOR SALE IN THE ABSENCE OF AN EFFECTIVE REGISTRATION
        STATEMENT FOR THE SECURITIES OR AN OPINION OF COUNSEL OR OTHER EVIDENCE
        ACCEPTABLE TO THE COMPANY THAT SUCH REGISTRATION IS NOT REQUIRED.

        C.      FILINGS. The Company undertakes and agrees to make all filings
required to be made by it in connection with the sale of the Securities to the
Buyer under the 1933 Act, the 1934 Act or any United States state securities
laws and regulations thereof applicable to the Company, or by any domestic
securities exchange or trading market, and, unless such filing is publicly
available on the SEC's EDGAR system (via the SEC's web site at no additional
charge), to provide a copy thereof to the Buyer promptly after such filing.

        D.      REPORTING STATUS. So long as the Buyer beneficially owns any of
the Securities and for at least twenty (20) Trading Days thereafter, the Company
shall file all reports required to be filed with the SEC pursuant to Section 13
or 15(d) of the 1934 Act, shall take all reasonable action under its control to
ensure that adequate current public information with respect to the Company, as
required in accordance with Rule 144(c)(2) of the 1933 Act, is publicly
available, and shall not terminate its status as an issuer required to file
reports under the 1934 Act even if the 1934 Act or the rules and regulations
thereunder would permit such termination. The Company will take all reasonable
action under its control to maintain the continued listing and quotation and
trading of its Common Stock (including, without limitation, all Registrable
Securities) on the Principal Trading Market or a listing on the NASDAQ/Small Cap
or National Markets and, to the extent applicable to it, will comply in all
material respects with the Company's reporting, filing and other obligations
under the by-laws or rules of the Principal Trading Market and/or the National
Association of Securities Dealers, Inc., as the case may be, applicable to it at
least through the date which is sixty (60) days after the Warrant has been
exercised in full or has expired.

        E.      USE OF PROCEEDS. The Company will use the proceeds received
hereunder (i) first, as provided in ANNEX VII attached hereto, and (ii) then,
for general corporate purposes.

        F.      WARRANT. The Company agrees to issue to each Buyer on the
Closing Date a transferable warrant (the "Warrant") for the purchase of the
Buyer's Allocable Share of 3,000,000 shares of Common Stock. The exercise price
of the Warrant will be equal to $0.15, subject to adjustment as provided in the
Warrant and herein. The Warrant shall be exercisable initially on the
Commencement Date specified in the Warrant and shall expire on the last day of
the calendar month in which the fifth anniversary of the Closing Date occurs.
Except as specified above, each Warrant shall generally be in the form annexed
hereto as ANNEX IV, and shall have the benefit of the Registration Rights
Provisions.

<PAGE>

        G.      CERTAIN AGREEMENTS. Any other provision of this Agreement or any
of the other Transaction Agreements to the contrary notwithstanding, the Company
shall not engage in any offers, sales or other transactions of its securities
which would adversely affect the exemption from registration available for the
transactions contemplated by the Transaction Agreements.

        H.      PIGGY-BACK RIGHTS; RULE 144.

        (i)     The Holder shall have piggy-back registration rights with
respect to the Registrable Securities subject to the conditions set forth below.
If the Company participates (whether voluntarily or by reason of an obligation
to a third party) in the registration of any shares of the Company's stock
(other than a registration on Form S-8 or on Form S-4), the Company shall give
written notice thereof to the Holder and the Holder shall have the right,
exercisable within ten (10) Trading Days after receipt of such notice, to demand
inclusion of all or a portion of the Holder's Registrable Securities in such
registration statement. If the Holder exercises such election, the Registrable
Securities so designated shall be included in the registration statement
(without any holdbacks) at no cost or expense to the Holder (other than any
commissions, if any, relating to the sale of Holder's shares). The Holder's
rights under this Section 4(h)(i) shall expire at such time as such Holder can
sell all of such Holder's remaining Registrable Securities under Rule 144 (as
defined below) without volume or other restrictions or limit. (ii) With a view
to making available to the Holder the benefits of Rule 144 promulgated under the
1933 Act or any other similar rule or regulation of the SEC that may at any time
permit Holder to sell securities of the Company to the public without
registration (collectively, "Rule 144"), the Company agrees to:

        (a)     make and keep public information available, as those terms are
understood and defined in Rule 144;

        (b)     file with the SEC in a timely manner all reports and other
documents required of the Company under the 1933 Act and the 1934 Act; and

        (c)     furnish to the Holder so long as such party owns Registrable
Securities, promptly upon request, (i) a written statement by the Company that
it has complied with the reporting requirements of Rule 144, the 1933 Act and
the 1934 Act, (ii) if not available on the SEC's EDGAR system, a copy of the
most recent annual or quarterly report of the Company and such other reports and
documents so filed by the Company and (iii) such other information as may be
reasonably requested to permit the Holder to sell such securities pursuant to
Rule 144 without registration; and

        (d)     at the request of any Holder then holding Registrable
Securities, give the Transfer Agent instructions (supported by an opinion of
Company counsel, if required or requested by the Transfer Agent) to the effect
that, upon the Transfer Agent's receipt from such Holder of

        (i)     a certificate (a "Rule 144 Certificate") certifying (A) that the
Holder's holding period (as determined in accordance with the provisions of Rule
144) for the Shares which the Holder proposes to sell (the "Securities Being
Sold") is not less than one (1) year and (B) as to such other matters as may be
appropriate in accordance with Rule 144 under the Securities Act, and

        (ii)    an opinion of counsel acceptable to the Company (for which
purposes it is agreed that Krieger & Prager LLP shall be deemed acceptable if
not given by Company counsel) that, based on the Rule 144 Certificate,
Securities Being Sold may be sold pursuant to the provisions of Rule 144, even
in the absence of an effective registration statement, the Transfer Agent is to
effect the transfer of the Securities Being Sold and issue to the buyer(s) or
transferee(s) thereof one or more stock certificates representing the
transferred Securities Being Sold without any restrictive legend and without
recording any restrictions on the transferability of such shares on the Transfer
Agent's books and records (except to the extent any such legend or restriction
results from facts other than the identity of the relevant Holder, as the seller
or transferor thereof, or the status, including any relevant legends or
restrictions, of the

<PAGE>

shares of the Securities Being Sold while held by the Buyer). If the Transfer
Agent reasonably requires any additional documentation at the time of the
transfer, the Company shall deliver or cause to be delivered all such reasonable
additional documentation as may be necessary to effectuate the issuance of an
unlegended certificate.

        (iii)   Notwithstanding the foregoing, if at any time or from time to
time after the date of effectiveness of the registration statement, the Company
notifies the Holder in writing of the existence of a Potential Material Event
(as defined below), the Holder shall not offer or sell any Registrable
Securities, or engage in any other transaction involving or relating to the
Registrable Securities, from the time of the giving of notice with respect to a
Potential Material Event until the Holder receives written notice from the
Company that such Potential Material Event either has been disclosed to the
public or no longer constitutes a Potential Material Event. The term "Potential
Material Event" means any of the following: (i) the possession by the Company of
material information not ripe for disclosure in a registration statement, which
shall be evidenced by determinations in good faith by the Board of Directors of
the Company that disclosure of such information in the registration statement
would be detrimental to the business and affairs of the Company; or (ii) any
material engagement or activity by the Company which would, in the good faith
determination of the Board of Directors of the Company, be adversely affected by
disclosure in a registration statement at such time, which determination shall
be accompanied by a good faith determination by the Board of Directors of the
Company that the registration statement would be materially misleading absent
the inclusion of such information.

        I.      AVAILABLE SHARES. The Company shall have at all times authorized
and reserved for issuance, free from preemptive rights, a number of shares (the
"Minimum Available Shares") at least equal to one hundred percent (100%) of the
number of shares which would be issuable upon exercise of the outstanding
Warrants held by all Holders (in each case, whether such Warrant were originally
issued to the Holder, the Buyer or to any other party). For the purposes of such
calculations, the Company should assume that the Warrant were then exercisable
without regard to any restrictions which might limit any Holder's right to
exercise the Warrant held by any Holder.

        J.      PUBLICITY, FILINGS, RELEASES, ETC. Each of the parties agrees
that it will not disseminate any information relating to the Transaction
Agreements or the transactions contemplated thereby, including issuing any press
releases, holding any press conferences or other forums, or filing any reports
(collectively, "Publicity"), without giving the other party reasonable advance
notice and an opportunity to comment on the contents thereof. Neither party will
include in any such Publicity any statement or statements or other material to
which the other party reasonably objects, unless in the reasonable opinion of
counsel to the party proposing such statement, such statement is legally
required to be included. In furtherance of the foregoing, the Company will
provide to the Buyer drafts of the applicable text of the first filing of a
Current Report on Form 8-K or a Quarterly or Annual Report on Form 10-Q or 10-K
intended to be made with the SEC which refers to the Transaction Agreements or
the transactions contemplated thereby as soon as practicable (but at least two
(2) Trading Days before such filing will be made) and will not include in such
filing any statement or statements or other material to which the other party
reasonably objects, unless in the reasonable opinion of counsel to the party
proposing such statement, such statement is legally required to be included.
Notwithstanding the foregoing, each of the parties hereby consents to the
inclusion of the text of the Transaction Agreements in filings made with the SEC
as well as any descriptive text accompanying or part of such filing which is
accurate and reasonably determined by the Company's counsel to be legally
required. Notwithstanding, but subject to, the foregoing provisions of this
Section 4(j), the Company will, after the Closing Date, promptly issue a press
release and file a Current Report on Form 8-K or, if appropriate, a quarterly or
annual report on the appropriate form, referring to the transactions
contemplated by the Transaction Agreements.

        5.      TRANSFER AGENT INSTRUCTIONS.

        A.      The Company warrants that, with respect to the Securities, other
than the stop transfer instructions to give effect to Section 4(a) hereof, it
will give the Transfer Agent no instructions inconsistent with instructions to
issue Common Stock from time to time upon exercise of the Warrant in such
amounts as specified from time to time by the Company to the Transfer Agent,
bearing the restrictive legend specified in Section 4(b) of this Agreement prior
to registration of the Shares under the 1933 Act, registered in the name of the
Buyer or its

<PAGE>

nominee and in such denominations to be specified by the Holder in connection
with each exercise of the Warrant. Except as so provided, the Shares shall
otherwise be freely transferable on the books and records of the Company as and
to the extent provided in this Agreement and the other Transaction Agreements.
Nothing in this Section shall affect in any way the Buyer's obligations and
agreement to comply with all applicable securities laws upon resale of the
Securities. If the Buyer provides the Company with an opinion of counsel
reasonably satisfactory to the Company that registration of a resale by the
Buyer of any of the Securities in accordance with clause (1)(B) of Section 4(a)
of this Agreement is not required under the 1933 Act, the Company shall (except
as provided in clause (2) of Section 4(a) of this Agreement) permit the transfer
of the Securities and, in the case of the Warrant Shares, promptly instruct the
Transfer Agent to issue one or more certificates for Common Stock without legend
in such name and in such denominations as specified by the Buyer.

        B.      Subject to the provisions of this Agreement, the Company will
permit the Buyer to exercise the Warrant in the manner contemplated by the
Warrant.

        C.      (i)     The Company understands that a delay in the issuance of
the Shares of Common Stock beyond the Delivery Date (as defined in the Warrant)
could result in economic loss to the Buyer. As compensation to the Buyer for
such loss, the Company agrees to pay late payments to the Buyer for late
issuance of Shares upon exercise in accordance with the following schedule
(where "No. Business Days Late" refers to the number of Trading Days which is
beyond two (2) Trading Days after the Delivery Date):(3)

                                       Late Payment For Each $10,000
                                        of Exercise Price of Warrant
        No. Business Days Late               Being Exercised
        ----------------------               ---------------

                  1                               $100
                  2                               $200
                  3                               $300
                  4                               $400
                  5                               $500
                  6                               $600
                  7                               $700
                  8                               $800
                  9                               $900
                  10                              $1,000
                                                                        >10
                                                          $1,000 + $200 for each
                                                Business Day Late beyond 10 days

The Company shall pay any payments incurred under this Section in immediately
available funds upon demand as the Buyer's exclusive remedy (other than the
following provisions of this Section 5(c)) for such delay. Furthermore, in
addition to any other remedies which may be available to the Buyer, in the event
that the Company fails for any reason to effect delivery of such shares of
Common Stock by close of business on the tenth Trading Day after the Delivery
Date, the Buyer will be entitled to revoke the relevant Notice of Exercise by
delivering a notice to such effect to the Company, whereupon the Company and the
Buyer shall each be restored to their respective positions

----------------------------
(3) Example: Notice of Exercise is delivered on Monday, May 1, 2006. The
Delivery Date would be Thursday, May 4 (the third Trading Day after such
delivery). If the certificate is delivered by Monday, May 8 (2 Trading Days
after the Delivery Date), no payment under this provision is due. If the
certificates are delivered on May 9, that is 1 "Business Day Late" in the table
below; if delivered on May 16, that is 6 "Business Days Late" in the table.

<PAGE>

immediately prior to delivery of such Notice of Exercise; provided, however,
that an amount equal to any payments contemplated by this Section 5(c) which
have accrued through the date of such revocation notice shall remain due and
owing to the Exercising Holder notwithstanding such revocation.

                (ii)    If, by the close of business on the fifth Trading Day
after the Delivery Date, the Company fails for any reason to deliver the Shares
to be issued upon exercise of the Warrant and after such fifth Trading Day, the
Holder of the Warrant being exercised (an "Exercising Holder") purchases, in a
BONA FIDE arm's-length transaction, shares of Common Stock (the "Covering
Shares") in order to make delivery in satisfaction of a sale of Common Stock by
the Exercising Holder (the "Sold Shares"), which delivery such Exercising Holder
anticipated to make using the Shares to be issued upon such exercise (a
"Buy-In"), the Exercising Holder shall have the right, in addition to and not in
lieu of all other amounts contemplated in other provisions of the Transaction
Agreements, including, but not limited to, the provisions of the immediately
preceding Section 5(c)(i), the Buy-In Adjustment Amount (as defined below). The
"Buy-In Adjustment Amount" is the amount equal to the number of Sold Shares
multiplied by the excess, if any, of (x) the Exercising Holder's total purchase
price per share (including brokerage commissions, if any) for the Covering
Shares over (y) the net proceeds per share (after brokerage commissions, if any)
received by the Exercising Holder from the sale of the Sold Shares. The Company
shall pay the Buy-In Adjustment Amount to the Exercising Holder in immediately
available funds immediately upon demand by the Exercising Holder. By way of
illustration and not in limitation of the foregoing, if the Exercising Holder
purchases shares of Common Stock having a total purchase price (including
brokerage commissions) of $11,000 to cover a Buy-In with respect to shares of
Common Stock it sold for net proceeds of $10,000, the Buy-In Adjustment Amount
which Company will be required to pay to the Exercising Holder will be $1,000.

        D.      The provisions of this paragraph apply on or after the effective
date of the registration statement covering the resale of the Shares. After such
effective date, the Company will issue Shares without legend and without
transfer restrictions on the books of the Transfer Agent, and, at the request of
the Holder, will use it best efforts to have previously issued certificates
representing the Shares re-issued without legend and without transfer
restrictions on the books of the Transfer Agent. In lieu of delivering physical
certificates representing the Common Stock issuable upon exercise of a Warrant
or at the request of the Holder with respect to any Shares previously issued,
provided the Transfer Agent is participating in the Depository Trust Company
("DTC") Fast Automated Securities Transfer program, upon request of the Holder
and its compliance with the provisions contained in this paragraph, so long as
the certificates therefor do not bear a legend and the Holder thereof is not
obligated to return such certificate for the placement of a legend thereon, the
Company shall use its best efforts to cause the Transfer Agent to electronically
transmit to the Holder the Common Stock issuable upon exercise of the Warrant or
in replacement of any Shares previously issued by crediting the account of
Holder's Prime Broker with DTC through its Deposit Withdrawal Agent Commission
system. In connection therewith, it will be the Holder's obligation to obtain
formal requirements, such as medallion guaranty, if necessary.

        E.      The Company shall assume any fees or charges of the Transfer
Agent or Company counsel regarding (i) the removal of a legend or stop transfer
instructions with respect to Registrable Securities, and (ii) the issuance of
certificates or DTC registration to or in the name of the Holder or the Holder's
designee or to a transferee as contemplated by an effective Registration
Statement.

        F.      The Holder of the Warrant shall be entitled to exercise its
exercise privilege with respect to the Warrant notwithstanding the commencement
of any case under 11 U.S.C. ss.101 ET SEQ. (the "Bankruptcy Code"). In the event
the Company is a debtor under the Bankruptcy Code, the Company hereby waives, to
the fullest extent permitted, any rights to relief it may have under 11 U.S.C.
ss.362 in respect of such holder's exercise privilege. The Company hereby
waives, to the fullest extent permitted, any rights to relief it may have under
11 U.S.C. ss.362 in respect of the exercise of the Warrant. The Company agrees,
without cost or expense to such Holder, to take or to consent to any and all
action necessary to effectuate relief under 11 U.S.C. ss.362.

        G.      The Company will authorize the Transfer Agent to give
information relating to the Company directly to the Holder or the Holder's
representatives upon the request of the Holder or any such representative, to
the extent such information relates to (i) the status of shares of Common Stock
issued or claimed

<PAGE>

to be issued to the Holder in connection with a Notice of Exercise, or (ii) the
aggregate number of outstanding shares of Common Stock of all shareholders (as a
group, and not individually) as of a current or other specified date. At the
request of the Holder, the Company will provide the Holder with a copy of the
authorization so given to the Transfer Agent.

        6.      CLOSING DATE.

        A.      The Closing Date shall occur on the date which is the first
Trading Day after each of the conditions contemplated by Sections 7 and 8 hereof
shall have either been satisfied or been waived by the party in whose favor such
conditions run.

        B.      The closing of the Transactions shall occur on the Closing Date
at the offices of the Escrow Agent and shall take place no later than 3:00 P.M.,
New York time, on such day or such other time as is mutually agreed upon by the
Company and the Buyer.

        C.      Notwithstanding anything to the contrary contained herein, the
Escrow Agent will be authorized to release the Escrow Funds to the Company and
to others and to release the other Escrow Property on the Closing Date upon
satisfaction of the conditions set forth in Sections 7 and 8 hereof and as
provided in the Joint Escrow Instructions.

        7.      CONDITIONS TO THE COMPANY'S OBLIGATION TO SELL.

        The Buyer understands that the Company's obligation to sell the Note and
the Warrant to the Buyer pursuant to this Agreement on the Closing Date is
conditioned upon:

        A.      The execution and delivery of this Agreement by the Buyer;

        B.      Delivery by the Buyer to the Escrow Agent of good funds as
payment in full of an amount equal to the Purchase Price in accordance with this
Agreement;

        C.      The accuracy on such Closing Date of the representations and
warranties of the Buyer contained in this Agreement, each as if made on such
date, and the performance by the Buyer on or before such date of all covenants
and agreements of the Buyer required to be performed on or before such date; and

        D.      There shall not be in effect any law, rule or regulation
prohibiting or restricting the transactions contemplated hereby, or requiring
any consent or approval which shall not have been obtained.

        8.      CONDITIONS TO THE LENDER'S OBLIGATION TO PURCHASE.

        The Company understands that the Buyer's obligation to purchase the Note
and the Warrant on the Closing Date is conditioned upon:

        A.      The execution and delivery of this Agreement and the other
Transaction Agreements by the Company;

        B.      Delivery by the Company to the Escrow Agent of the Certificates
in accordance with this Agreement;

        C.      The accuracy in all material respects on the Closing Date of the
representations and warranties of the Company contained in this Agreement, each
as if made on such date, and the performance by the Company on or before such
date of all covenants and agreements of the Company required to be performed on
or before such date;

<PAGE>

        D.      On the Closing Date, the Buyer shall have received an opinion of
counsel for the Company, dated the Closing Date, in form, scope and substance
reasonably satisfactory to the Buyer, substantially to the effect set forth in
ANNEX III attached hereto;

        E.      There shall not be in effect any law, rule or regulation
prohibiting or restricting the transactions contemplated hereby, or requiring
any consent or approval which shall not have been obtained; and

        F.      From and after the date hereof to and including the Closing
Date, each of the following conditions will remain in effect: (i) the trading of
the Common Stock shall not have been suspended by the SEC or on the Principal
Trading Market; (ii) trading in securities generally on the Principal Trading
Market shall not have been suspended or limited; (iii) no minimum prices shall
been established for securities traded on the Principal Trading Market; and (iv)
there shall not have been any material adverse change in any financial market.

        9.      JURY TRIAL WAIVER. The Company and the Buyer hereby waive a
trial by jury in any action, proceeding or counterclaim brought by either of the
Parties hereto against the other in respect of any matter arising out or in
connection with the Transaction Agreements.

        10.     GOVERNING LAW: MISCELLANEOUS.

        A.      (i)     This Agreement shall be governed by and interpreted in
accordance with the laws of the State of Delaware for contracts to be wholly
performed in such state and without giving effect to the principles thereof
regarding the conflict of laws. Each of the parties consents to the exclusive
jurisdiction of the federal courts whose districts encompass any part of the
City of Wilmington or the state courts of the State of Delaware sitting in the
City of Wilmington in connection with any dispute arising under this Agreement
or any of the other Transaction Agreements and hereby waives, to the maximum
extent permitted by law, any objection, including any objection based on FORUM
NON CONVENIENS, to the bringing of any such proceeding in such jurisdictions or
to any claim that such venue of the suit, action or proceeding is improper. To
the extent determined by such court, the Company shall reimburse the Buyer for
any reasonable legal fees and disbursements incurred by the Buyer in enforcement
of or protection of any of its rights under any of the Transaction Agreements.
Nothing in this Section shall affect or limit any right to serve process in any
other manner permitted by law.

                (ii)    The Company and the Buyer acknowledge and agree that
irreparable damage would occur in the event that any of the provisions of this
Agreement or the other Transaction Agreements were not performed in accordance
with their specific terms or were otherwise breached. It is accordingly agreed
that the parties shall be entitled to an injunction or injunctions to prevent or
cure breaches of the provisions of this Agreement and the other Transaction
Agreements and to enforce specifically the terms and provisions hereof and
thereof, this being in addition to any other remedy to which any of them may be
entitled by law or equity.

        B.      Failure of any party to exercise any right or remedy under this
Agreement or otherwise, or delay by a party in exercising such right or remedy,
shall not operate as a waiver thereof.

        C.      This Agreement shall inure to the benefit of and be binding upon
the successors and assigns of each of the parties hereto.

        D.      All pronouns and any variations thereof refer to the masculine,
feminine or neuter, singular or plural, as the context may require.

        E.      A facsimile transmission of this signed Agreement shall be legal
and binding on all parties hereto.

        F.      This Agreement may be signed in one or more counterparts, each
of which shall be deemed an original.

<PAGE>

        G.      The headings of this Agreement are for convenience of reference
and shall not form part of, or affect the interpretation of, this Agreement.

        H.      If any provision of this Agreement shall be invalid or
unenforceable in any jurisdiction, such invalidity or unenforceability shall not
affect the validity or enforceability of the remainder of this Agreement or the
validity or enforceability of this Agreement in any other jurisdiction.

        I.      This Agreement may be amended only by an instrument in writing
signed by the party to be charged with enforcement thereof.

        J.      This Agreement supersedes all prior agreements and
understandings among the parties hereto with respect to the subject matter
hereof.

        K.      All dollar amounts referred to or contemplated by this Agreement
or any other Transaction Agreement shall be deemed to refer to US Dollars,
unless otherwise explicitly stated to the contrary.

        11.     NOTICES. Any notice required or permitted hereunder shall be
given in writing (unless otherwise specified herein) and shall be deemed
effectively given on the earliest of

                (a)     the date delivered, if delivered by personal delivery as
        against written receipt therefor or by confirmed facsimile transmission,

                (b)     the fifth Trading Day after deposit, postage prepaid, in
        the United States Postal Service by registered or certified mail, or

                (c)     the third Trading Day after mailing by domestic or
        international express courier, with delivery costs and fees prepaid, in
        each case, addressed to each of the other parties thereunto entitled at
        the following addresses (or at such other addresses as such party may
        designate by ten (10) days' advance written notice similarly given to
        each of the other parties hereto):

COMPANY:        At the address set forth at the head of this Agreement.
                        Attn: President
                        Telephone No.: (617) 332-0004
                        Telecopier No.: (617) 332-7260

                        with a copy to:

                        Aboudi & Brounstein
                        Attn: David Aboudi, Esq.
                        Rechov Gavish 3, POB 2432
                        Kfar Saba Industrial Zone 44641 Israel
                        Telephone No.: (011-972-9) 764-4833
                        Telecopier No.: (011-972-9) 764-4834

LENDER:                 At the address set forth on the signature page of this
                        Agreement.

<PAGE>

                        with a copy to:

                        Krieger & Prager LLP, Esqs.
                        39 Broadway
                        Suite 1440
                        New York, NY 10006
                        Attn: Ronald J. Nussbaum, Esq.
                        Telephone No.: (212) 363-2900
                        Telecopier No.  (212) 363-2999

ESCROW AGENT:           Krieger & Prager LLP, Esqs.
                        39 Broadway
                        Suite 1440
                        New York, NY 10006
                        Attn: Samuel Krieger, Esq.
                        Telephone No.: (212) 363-2900
                        Telecopier No.  (212) 363-2999

        12.     SURVIVAL OF REPRESENTATIONS AND WARRANTIES. The Company's and
the Buyer's representations and warranties herein shall survive the execution
and delivery of this Agreement and the delivery of the Certificates and the
payment of the Purchase Price, and shall inure to the benefit of the Buyer and
the Company and their respective successors and assigns.

                   [Balance of page intentionally left blank]

<PAGE>

        IN WITNESS WHEREOF, with respect to the Purchase Price specified below,
this Agreement has been duly executed by the Buyer and the Company as of the
date set first above written.

PURCHASE PRICE:                                 $1,500,000

                                                BUYER:
                                                ------

________________________________        Double U Master Fund LP
Address                                 Printed Name of Buyer
________________________________

                                                By: ____________________________
Telecopier No. _________________                (Signature of Authorized Person)

                                        ________________________________________
________________________________        Printed Name and Title
Jurisdiction of Incorporation
or Organization

                                                COMPANY
                                                -------

AMBIENT CORPORATION

By: /s/ John J. Joyce
(Signature of Authorized Person)

John J. Joyce
President and Chief Executive Officer

Printed Name and Title

<PAGE>

        ANNEX I         FORM OF NOTE

        ANNEX II        JOINT ESCROW INSTRUCTIONS

        ANNEX III       OPINION OF COUNSEL OF COMPANY

        ANNEX IV        FORM OF WARRANT

        ANNEX V         SECURITY INTEREST AGREEMENT

        ANNEX VI        COMPANY'S SEC DOCUMENTS AVAILABLE ON EDGAR

        ANNEX VII       USE OF PROCEEDS

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