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                                                                    EXHIBIT 10.4
 

                                 BUSINESS LEASE


     THIS AGREEMENT, entered into this 1st day of December 1998 between Karen
Development Co., hereinafter called the lessor, party of the first part, and Pro
Tech Communications of the County of St. Lucie Florida hereinafter called the
lessee or tenant, party of the second part:

     WITNESSETH, That the said lessor does this day lease unto said lessee, and
said lessee does hereby hire and take as tenant under said lessor, Room or Space

                              3309 Industrial 25th
                              3311 Industrial 25th

No.
situate in State of Florida, to be used and occupied by the lessee as assembly 
work and for no other purposes or uses whatsoever, for the term of 1 year, 
subject and conditioned on the provisions of clause ten of this lease beginning 
the 1st day of December, 1998, and ending the 30th day of November, 1999,
at and for the agreed total rental of _________ Dollars, payable as follows:

                              3309 Industrial 25th    800.00 per month
                              3311 Industrial 25th    750.00 per month
                                                     -------

                              Total                $1,550.00 per month
                              Plus state sales tax     94.25
                                                   ---------
                                                     1644.25


all payments to be made to the lessor on the first day of each and every month
in advance without demand at the office of Karen Development Co. in the City of
3307 Industrial 25th or at such other place and to such other person, as the
lessor may from time to time designate in writing.

     The following express stipulations and conditions are made a part of this
lease and are hereby assented to by the lessee:

     FIRST: The lessee shall not assign this lease, nor sub-let the premises, or
any part thereof nor use the same, or any part thereof, nor permit the same, or
any part thereof, to be used for any other purpose than as above stipulated, nor
make any alterations therein, and all additions thereto, without the written
consent of the lessor, and all additions, fixtures or improvements which may be
made by lessee, except movable office furniture, shall become the property of
the lessor and remain upon the premises as a part thereof, and be surrendered
with the premises at the termination of this lease.

     SECOND: All personal property placed or moved in the premises above
described shall be at the risk of the lessee or owner thereof, and lessor shall
not be liable for any damage to said personal property, or to the lessee arising
from the bursting or leaking of water pipes, or from any act of negligence of
any co-tenant or occupants of the building or of any other person whomsoever.

     THIRD: That the tenant shall promptly execute and comply with all statutes,
ordinances, rules, orders, regulations and requirements of the Federal, State
and City Government and of any and all their Departments and Bureaus applicable
to said premises, for the correction, prevention, and abatement of nuisances or
other grievances, in, upon, or connected with said premises during said term;
and shall also promptly comply with and execute all rules, orders and
regulations of the applicable fire prevention codes for the prevention of fires
at own cost and expense.

     FOURTH: In the event the premises shall be destroyed or so damaged or
injured by fire or other casualty during the life of this agreement, whereby the
same shall be rendered untenantable, then the lessor shall have the right to
render said premises tenantable by repairs within ninety days therefrom. If said
premises are not rendered tenantable within said time, it shall be optional with
either party hereto to cancel this lease, and in the event of such cancellation
the rent shall be paid only to the date of such fire or casualty. The
cancellation herein mentioned shall be evidenced in writing.

     FIFTH: The prompt payment of the rent for said premises upon the dates
named, and the faithful observance of the rules and regulations printed upon
this lease, and which are hereby made a part of this covenant, and of such other
and further rules or regulations as may be hereafter made by the lessor, are the
conditions upon which the lease in made and accepted and any failure on the part
of the lessee to comply with the terms of said lease, or any of said rules and
regulations now in existence, or which may be hereafter prescribed by the
lessor, shall at the option of the lessor, work a forfeiture of this contract,
and all of the rights of the lessee hereunder.



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     SIXTH: If the lessee shall abandon or vacate said premises before the end
of the term of this lease, or shall suffer the rent to be in arrears, the lessor
may, at his option, forthwith cancel this lease or he may enter said premises as
the agent of the lessee, without being liable in any way therefor, and relet the
premises with or without any furniture that may be therein, as the agent of the
lessee, at such price and upon such terms and  for such duration of time as the
lessor may determine, and receive the rent therefor, applying the same to the
payment of the rent due by these presents, and if the full rental herein
provided shall not be realized by lessor over and above the expenses to lessor
in such re-letting, the said lessee shall pay any deficiency, and if more than
the full rental is realized lessor will pay over to said lessee the excess of
demand.

     SEVENTH: Lessee agrees to pay the cost of collection and ten per cent
attorney's fee on any part of said rental that may be collected by suit or by
attorney, after the same is past due.

     EIGHTH: The lessee agrees that he will pay all charges for rent, gas,
electricity or other illumination, and for all water used on said premises, and
should said charges for rent, light or water herein provided for at any time
remain due and unpaid for the space of five days after the same shall have
become due, the lessor may at its option consider the said lessee tenant at
sufferance and the entire rent for the rental period then next ensuing shall at
once be due and payable and may forthwith be collected by distress or otherwise.

     NINTH: The said lessee hereby pledges and assigns to the lessor all the
furniture, fixtures, goods and chattels of said lessee, which shall or may be
brought or put on said premises as security for the payment of the rent herein
reserved, and the lessee agrees that the said lien may be enforced by distress
foreclosure or otherwise at the election of the said lessor, and does hereby
agree to pay attorney's fees of ten percent of the amount so collected or found
to be due, together with all costs and charges therefore incurred or paid by the
lessor.

     TENTH: It is hereby agreed and understood between lessor and lessee that in
the event the lessor decides to remodel, alter or demolish all or any part of
the premises leased hereunder, or in the event of the sale or long term lease of
all or any part of the ; requiring this space, the lessee hereby agrees to
vacate same upon receipt of sixty (60) days' written notice and the return of
any advance rental paid on account of this lease. 

     ELEVENTH: The lessor, or any of his agents, shall have the right to enter
said premises during all reasonable hours, to examine the same to make such
repairs, additions or alterations as may be deemed necessary for the safety,
comfort, or preservation thereof, or of said building, or to exhibit said
premises, and to put or keep upon the doors or windows thereof a notice "FOR
RENT" at any time within thirty (30) days before the expiration of this lease.
The right of entry shall likewise exist for the purpose of removing placards,
signs, fixtures, alterations, or additions, which do not conform to this
agreement, or to the rules and regulations of the building.

     TWELFTH: Lessee hereby accepts the premises in the condition they are in at
the beginning of this lease and agrees to maintain said premises in the same
condition, order and repair as they are at the commencement of said term,
excepting only reasonable wear and tear arising from the use thereof under this
agreement, and to make good to said lessor immediately upon demand, any damage
to water apparatus, or electric lights or any fixture, appliances or
appurtenances of said premises, or of the building, caused by any act or neglect
of lessee, or of any person or persons in the employ or under the control of the
lessee.

     THIRTEENTH: It is expressly agreed and understood by and between the
parties to this agreement, that the landlord shall not be liable for any damage
or injury by water, which may be sustained by the said tenant or other person or
for any other damage or injury resulting from the carelessness, negligence, or
improper conduct on the part of any other tenant or agents, or employees, or by
reason of the breakage, leakage, or obstruction of the water, sewer or soil
pipes, or other leakage in or about the said building.

     FOURTEENTH: If the lessee shall become insolvent or if bankruptcy
proceedings shall be begun by or against the lessee, before the end of said term
the lessor is hereby irrevocably authorized at its option, to forthwith cancel
this lease, as for a default. Lessor may elect to accept rent from such in their
receiver, trustee, or other judicial officer during the term of their occupancy
in their fiduciary capacity without affecting lessor's rights as contained in
this contract, but no receiver, trustee or other judicial officer shall ever
have any right, title or interest in or to the above described property by
virtue of this contract.

     FIFTEENTH: Lessee hereby waives and renounces for himself and family any
and all homestead and exemption rights he may have now, or hereafter, under or
by virtue of the constitution and laws of the State of Florida, or of any other
State, or of the United States, as against the payment of said rental or any
portion hereof, or any other obligation or damage that may accrue under the
terms of this agreement.

     SIXTEENTH: This contract shall bind the lessor and its assigns or
successors, and the heirs, assigns, personal representatives, or successors as
the case may be, of the lessee.

     SEVENTEENTH: It is understood and agreed between the parties hereto that
time is of the essence of this contract and this applies to all terms and
conditions contained herein.

     EIGHTEENTH: It is understood and agreed between the parties hereto that
written notice mailed or delivered to the premises leased hereunder shall
constitute sufficient notice to the lessee and written notice mailed or
delivered to the office of the lessor shall constitute sufficient notice to the
Lessor, to comply with the terms of this contract.

     NINETEENTH: The rights of the lessor under the foregoing shall be
cumulative, and failure on the part of the lessor to exercise promptly any
rights given hereunder shall not operate to forfeit any of the said rights.

     TWENTIETH: It is further understood and agreed between the parties hereto
that any charges against the lessee by the lessor for services or for work done
on the premises by order of the lessee or otherwise accruing under this contract
shall be considered as rent due and shall be included in any lien for rent due
and unpaid.

     TWENTY-FIRST: It is hereby understood and agreed that any signs or
advertising to be used, including awnings, in connection with the premises
leased hereunder shall be first submitted to the lessor for approval before
installation of same.




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     IN WITNESS WHEREOF, the parties hereto have hereunto executed this
instrument for the purpose herein expressed, the day and year above written.

     Signed, sealed and delivered in the presence of:


            Renewal                       /s/ Sidney B. Motel,              1999
---------------------------------         ---------------------------------    


                                          Karen Development Co.            (Seal
---------------------------------         ---------------------------------

                                          /s/ Sidney B. Motel              (Seal
---------------------------------         ---------------------------------
          As to Lessor                                Lessor

                                          Pro Tech Communications          (Seal
---------------------------------         ---------------------------------

                                          /s/ [ILLEGIBLE]                  (Seal
---------------------------------         ---------------------------------
          As to Lessee

             Renewal                      /s/ [ILLEGIBLE]
---------------------------------         --------------------------------- 1999


  STATE OF                    )
                              )
County of __________          )

     Before me, a Notary Public in and for said State and County, personally
came __________________________________________________________________________
to me well known and known to be the person __________ named in the, 
foregoing lease, and _______________________ acknowledged that ________________
________________ executed the same for the purpose therein expressed.


     IN WITNESS WHEREOF, I have hereunto set my hand and affixed my official
seal the day of __________________________, 19____.


                                                  ------------------------------

                                                  ------------------------------
                                                     Notary Public

                                                  My commission expires
                                                                       ---------

This Instrument prepared by:

Address