Document:

EXHIBIT 10.2

                     AMENDMENT TO SHARE EXCHANGE AGREEMENT

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EXHIBIT 10.2

                                  AMENDMENT TO
                            SHARE EXCHANGE AGREEMENT
                               AND PLAN OF MERGER
                                 BY AND BETWEEN
                            Y-TEL INTERNATIONAL, INC.
                          SUNRISE BROADBAND GROUP, INC.
                        SUNRISE TELEVISION NETWORKS, INC.
                                       AND
                           SUNRISE ACQUISITIONS, INC.

Article 2.7(f) is amended to change "October 20, 2006" to "October 30, 2006."

Dated: October 23, 2006

Y-Tel International, Inc.

By: _________________________________

Sunrise Broadband Group, Inc.

By: _________________________________

Sunrise Television Networks, Inc.

By: _________________________________

Sunrise Acquisitions, Inc.

By: _________________________________Exhibit 10.1

    
      

      

    

     

    Exhibit
      10.1

     

    

     

    THIS
      PROMISSORY NOTE (THE “NOTE”) HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF
      1933, AS AMENDED (THE “SECURITIES ACT”), OR UNDER THE SECURITIES LAWS OF ANY
      STATE. THIS NOTE IS SUBJECT TO RESTRICTIONS ON TRANSFERABILITY AND RESALE AND
      MAY NOT BE SOLD, TRANSFERRED OR ASSIGNED IN THE ABSENCE OF AN EFFECTIVE
      REGISTRATION STATEMENT FOR THE SECURITIES UNDER THE SECURITIES ACT AND
      APPLICABLE STATE SECURITIES LAWS, OR AN OPINION OF COUNSEL IN FORM, SUBSTANCE
      AND SCOPE REASONABLY SATISFACTORY TO THE MAKER, THAT REGISTRATION IS NOT
      REQUIRED UNDER THE SECURITIES ACT AND APPLICABLE STATE SECURITIES LAWS OR UNLESS
      SOLD PURSUANT TO RULE 144 UNDER THE SECURITIES ACT.

     

    THIS
      PROMISSORY NOTE IS SUBJECT TO THE SUBORDINATION AGREEMENT BETWEEN THE HOLDER
      HEREOF AND SILICON VALLEY BANK.

     

    ZYNEX
      MEDICAL HOLDINGS, INC.

     

    CONVERTIBLE
      SECURED PROMISSORY NOTE

     

    
      	
              $275,000

               

            	 	
              October
                18, 2006

               

            

    

     

    FOR
      VALUE RECEIVED,
      ZYNEX
      MEDICAL HOLDINGS, INC., a Nevada corporation (“Maker”), promises to pay to the
      order of Ascendiant Capital Group, LLC (“Holder”)
      at 18881 Von Karman, 16th
      Floor,
      Irvine, CA 92612, the principal sum of Two Hundred Seventy Five Thousand Dollars
      ($275,000), together with all accrued interest thereon and fees, upon the terms
      and conditions specified below. 

     

    1. Use
      of Loan Proceeds.
      The
      proceeds of this Note shall be used for general working capital for the Maker.
      

     

    2. Due
      Date.
      Unless
      earlier accelerated or converted pursuant to the terms hereof, this Note shall
      mature and the outstanding principal balance of this Note together with all
      accrued and unpaid interest hereunder shall become due and payable in one lump
      sum on April 18, 2007 (the “Maturity Date”); provided, however, if Maker
      delivers written notice to Holder at any time not less than 15 days prior to
      the
      Maturity Date stating that Maker has elected to extend the term of this Note,
      this Note shall instead mature and the outstanding principal balance of this
      Note together with all accrued and unpaid interest hereunder shall become due
      and payable in six equal monthly installments beginning on the Maturity Date
      and
      ending on October 18, 2007 (the “Extended Maturity Date”).

     

    
      
        
        

      

      
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    3.  Original
      Issue Discount.
      This
      Note shall have an original issue discount equal to five percent (5%) of the
      aggregate principal amount of this Note, and Maker acknowledges that the
      proceeds of this Note shall be net of this five percent (5%) original issue
      discount. The amount by which the issue price of this Note is less than the
      amount to be paid at the Maturity Date (excluding amounts stated to be
      interest), constitutes “original issue discount,” the accrual of which is
      treated as interest on the Note for purposes of federal and state
      taxation.

     

    4. Interest.
      Interest shall accrue on the unpaid balance outstanding from time to time under
      this Note at the rate of (a) fifteen percent (15%) per annum from the date
      hereof to and including January 17, 2007 and (b) eighteen percent (18%) per
      annum from January 18, 2007 to and including the Maturity Date (with (a) and
      (b)
      referred to herein as the “Initial Term”); provided, however, (i) if the term of
      this Note is extended by Maker pursuant to Section 2 hereof, then from and
      after
      the original Maturity Date to and including the Extended Maturity Date, interest
      shall accrue on the unpaid balance outstanding from time to time under this
      Note
      at the rate of twenty-one percent (21%) per annum, and (ii) any principal amount
      not paid when due and, to the extent permitted by applicable law, any interest
      not paid when due, in each case whether at stated maturity, by required
      prepayment, declaration, acceleration, demand or otherwise (both before as
      well
      as after judgment), shall bear interest payable upon demand at a rate that
      is
      five percent (5%) per annum in excess of the rate of interest otherwise then
      payable under this Note. All computations of interest shall be made on the
      basis
      of a year of 360 days for the actual number of days (including the first day
      and
      excluding the last day) occurring in the period for which such interest is
      payable. In no event shall the interest rate payable on this Note exceed the
      maximum rate of interest permitted to be charged under applicable law. If the
      rate of interest payable under this Note is ever reduced as a result of the
      preceding sentence and at any time thereafter the maximum rate permitted by
      applicable law shall exceed such reduced rate of interest then provided for
      hereunder, then the rate provided for hereunder shall be increased to a rate
      not
      to exceed the maximum rate permitted by applicable law at such time, such that
      the total amount of interest received by the Holder is equal to or as nearly
      equal to the amount provided for in the first sentence of this paragraph as
      applicable law permits. All Interest payable under this Note during the Initial
      Term shall be prepaid on the date hereof from the proceeds of this Note
      irrespective of any prepayment of amounts under this Note. In the case of any
      Extended Maturity Date, all interest shall be according to the amortization
      schedule set forth in Section 2 hereof.

     

    5. Conversion.

     

    (a) At
      any
      time or from time to time prior to the Maturity Date or the Extended Maturity
      Date, as the case may be, Holder may elect to convert all or any portion of
      the
      outstanding principal balance of this Note and accrued but unpaid interest
      thereon into the common stock of Maker at an initial conversion price of $0.32
      per share of common stock (the “Conversion Price”).

     

    (b) No
      fractional shares of Maker’s capital stock will be issued upon conversion of
      this Note. In lieu of any fractional share to which Holder would otherwise
      be
      entitled, Maker will pay to Holder in cash the amount of the unconverted
      principal and interest balance of this Note that would otherwise be converted
      into such fractional share. Upon conversion of this Note pursuant to Section
      5,
      Holder shall surrender this Note, duly endorsed, at

     

    
      
        
        

      

      
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    the
      principal offices of Maker. At its expense, Maker will, as soon as practicable
      thereafter, issue and deliver to Holder, at such address as requested by Holder,
      a certificate or certificates for the number of shares to which Holder is
      entitled upon such conversion, together with any other securities and property
      to which Holder is entitled upon such conversion under the terms of this Note,
      including a check payable to Holder for any cash amounts payable as a result
      of
      any fractional shares as described herein.

     

    6. Adjustments
      to Conversion Price for Certain Diluting Issuances.

     

    (a) Special
      Definitions.
      For
      purposes of this Section 6, the following definitions apply:

     

    (i) “Options”
shall
      mean rights, options, or warrants to subscribe for, purchase or otherwise
      acquire either Common Stock or Convertible Securities (defined
      below).

     

    (ii) “Original
      Issue Date”
shall
      mean the date hereof.

     

    (iii) “Convertible
      Securities”
shall
      mean any evidences of indebtedness, shares or other securities convertible
      into
      or exchangeable for common stock of Maker.

     

    (iv) “Additional
      Shares of Common Stock”
shall
      mean all shares of common stock issued (or, pursuant to Section 6(c) below
      deemed to be issued) by Maker after the Original Issue Date, other than shares
      of common stock issuable or issued:

     

    A. upon
      the
      exercise or conversion of exercisable securities or Convertible Securities
      outstanding as of the Original Issue Date;

     

    B. upon
      exercise of stock options to officers, directors, employees or consultants
      of
      Maker pursuant to stock option or stock purchase plans or agreements on terms
      approved by the Board of Directors of Maker;

     

    C. as
      stock
      splits or subdivisions or stock dividends in respect of which the Conversion
      Price is adjusted pursuant to Section 6(e);

     

    D. in
      connection with any joint venture approved by the Board of Directors of
      Maker;

     

    E. to
      vendors in payment of normal and customary fees or in settlement of outstanding
      accounts payable in an aggregate amounts not to exceed 1% of the Maker’s
      outstanding Common Stock (measured as of the Original Issue Date and each
      anniversary date thereof) in each 12 month period following the Original Issue
      Date, provided that any such Additional Shares of Common Stock must be valued,
      as of the day such Additional Shares of Common Stock are issued or deemed to
      be
      issued, at or above the market price of the Maker’s Common Stock on the day of
      issuance, or

     

    
      
        
        

      

      
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    F. in
      connection with an acquisition by Maker of the securities, assets or business
      of
      another company.

     

    (b) No
      Adjustment of Conversion Price.
      Any
      provision herein to the contrary notwithstanding, no adjustment in the
      Conversion Price shall be made in respect of the issuance of Additional Shares
      of Common Stock unless the consideration per share is less than the applicable
      Conversion Price in effect on the date of, and immediately prior to such
      issue.

     

    (c) Deemed
      Issue of Additional Shares of Common Stock.
      In the
      event that Maker at any time or from time to time after the Original Issue
      Date
      shall issue any Options or Convertible Securities or shall fix a record date
      for
      the determination of holders of any class of securities then entitled to receive
      any such Options or Convertible Securities, then the maximum number of shares
      (as set forth in the instrument relating thereto without regard to any
      provisions contained therein designed to protect against dilution) of common
      stock issuable upon the exercise of such Options or, in the case of Convertible
      Securities and Options therefor, upon the exercise of such Options for
      Convertible Securities and the conversion or exchange of such Convertible
      Securities, shall be deemed to be Additional Shares of Common Stock issued
      as of
      the time of such issue or, in case such a record date shall have been fixed,
      as
      of the close of business on such record date, provided further that in any
      such
      case in which Additional Shares of Common Stock are deemed to be
      issued:

     

    (i) no
      further adjustments in the Conversion Price shall be made upon the subsequent
      issue of Convertible Securities or shares of Common Stock upon the exercise
      of
      such Options or conversion or exchange of such Convertible
      Securities;

     

    (ii) if
      such
      Options or Convertible Securities by their terms provide, with the passage
      of
      time or otherwise, for any increase or decrease in the consideration payable
      to
      the Maker, or increase or decrease in the number of shares of Common Stock
      issuable, upon the exercise, conversion or exchange thereof, the Conversion
      Price computed upon the original issue thereof (or upon the occurrence of a
      record date with respect thereto), and any subsequent adjustments based thereon,
      shall, upon any such increase or decrease becoming effective, be recomputed
      to
      reflect such increase or decrease insofar as it affects such Options or the
      rights of conversion or exchange under such Convertible Securities;

     

    (iii) upon
      the
      expiration of any such Options or rights, the termination of any such rights
      to
      convert or exchange or the expiration of any Options or rights related to such
      Convertible Securities or exchangeable securities, the Conversion Price, to
      the
      extent in any way affected by or computed using such Options, rights or
      Convertible Securities or Options or rights related to such Convertible
      Securities, shall be recomputed to reflect the issuance of only the number
      of
      shares of Common Stock (and convertible or exchangeable securities that remain
      in effect) actually issued upon the exercise of such Options or rights, upon
      the
      conversion or exchange of such Convertible Securities or upon the exercise
      of
      the Options or rights related to such Convertible Securities;

     

    
      
        
        

      

      
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    (d) Adjustment
      of Conversion Price Upon Issuance of Additional Shares of Common
      Stock.
      In the
      event that Maker, at any time after the Original Issue Date, shall issue
      Additional Shares of Common Stock without consideration or for a consideration
      per share less than the Conversion Price in effect on the date of and
      immediately prior to such issue (a “Dilutive
      Transaction”),
      then
      and in such event, the Conversion Price shall, automatically and without further
      action, be reduced to an amount determined by multiplying the Conversion Price
      then in effect by a fraction:

     

    (i) the
      numerator of which shall be (X) the number of shares of Common Stock outstanding
      immediately prior to the Dilutive Transaction (excluding treasury shares but
      including all shares of Common Stock issuable upon conversion, exchange or
      exercise of any outstanding shares of Convertible Securities or Options) plus
      (Y) the number of shares of Common Stock which the net aggregate consideration
      received by the Maker for the total number of such additional shares of Common
      Stock so issued in the Dilutive Transaction would purchase at such Conversion
      Price then in effect (prior to such adjustment); and

     

    (ii) the
      denominator of which shall be (X) the number of shares of Common Stock
      outstanding immediately prior to the Dilutive Transaction (excluding treasury
      shares but including all shares of Common Stock issuable upon conversion,
      exchange or exercise of any outstanding shares of Options or Convertible
      Securities), plus (Z) the number of such additional shares of Common Stock
      so
      issued in the Dilutive Transaction.

     

    (e) Adjustments
      to Conversion Price for Stock Dividends and for Combinations or Subdivisions
      of
      Common Stock.
      In the
      event that Maker at any time or from time to time after the Original Issue
      Date
      shall declare or pay, without consideration, any dividend on the Common Stock
      payable in Common Stock or in any right to acquire Common Stock for no
      consideration, or shall effect a subdivision of the outstanding shares of Common
      Stock into a greater number of shares of Common Stock (by stock split,
      reclassification or otherwise than by payment of a dividend in Common Stock
      or
      in any right to acquire Common Stock), or in the event the outstanding shares
      of
      Common Stock shall be combined or consolidated, by reclassification or
      otherwise, into a lesser number of shares of Common Stock, then the Conversion
      Price in effect immediately prior to such event shall, concurrently with the
      effectiveness of such event, be proportionately decreased or increased, as
      appropriate. In the event that Maker shall declare or pay, without
      consideration, any dividend on the Common Stock payable in any right to acquire
      Common Stock for no consideration then Maker shall be deemed to have made a
      dividend payable in Common Stock in an amount of shares equal to the maximum
      number of shares issuable upon exercise of such rights to acquire Common
      Stock.

     

    7. Payment.
      Payment
      shall be made in lawful tender of the United States and shall be applied first
      to the payment of all accrued and unpaid interest and then to the payment of
      principal. Subject to Section 4 (Interest), Section 8 (Warrants), Section 10
      (Optional Redemption) and Section 11 (Mandatory Redemption) of this Note,
      prepayment of the principal balance of this Note, together with all accrued
      and
      unpaid interest on the portion of principal so prepaid, may be made in whole
      or
      in part at any time without penalty.

     

    
      
        
        

      

      
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    8. Warrants;
      Restricted Stock.
      Upon
      the issuance of this Note, Maker shall issue to Holder a warrant, the form
      of
      which is attached hereto as Exhibit
      A
      (the
“Warrant”), to purchase 429,687 shares of common stock of Maker at a per share
      exercise price of $0.39 per share. If the term of this Note is extended by
      Maker
      pursuant to Section 2 hereof, then within five business days following Maker’s
      delivery of written notice of such extension, Maker shall issue and deliver
      to
      Holder shares of common stock of Maker in an amount equal to 75,000 shares
      for
      each $50,000 or part thereof of outstanding principal amount extended under
      this
      Note until the Extended Maturity Date. By way of example, $30,000 in principal
      amount extended shall equal 75,000 shares, $80,000 in principal amount extended
      shall equal 150,000 shares and $250,000 extended, shall equal 375,000
      shares.

     

    9. Events
      of Acceleration.
      The
      entire unpaid principal balance of this Note, together with all accrued and
      unpaid interest, and all other fees due hereunder shall become immediately
      due
      and payable prior to the specified due date of this Note upon the occurrence
      of
      one or more of the following events (each an “Event of Acceleration”):

     

    A. Maker
      shall fail to make any payment of principal or interest due under this Note
      which shall be deemed an “Event of Acceleration” immediately upon such failure;

     

    B. Maker
      shall fail to observe or perform any term or provision of this Note or the
      Warrant; provided
      that
      such
      occurrence shall not be deemed an “Event of Acceleration” unless such
      condition remains uncured at the end of the tenth day after the
      receipt of written notice from Holder of the occurrence of such
      default;

     

    C. Any
      representations or warranties of Maker in the Note or Warrant shall be found
      to
      be untrue or incorrect in any material respect;

     

    D. The
      occurrence of any event of default or acceleration under any promissory note
      or
      obligation for borrowed money with a principal amount in excess of $50,000
      owed
      by Maker; 

     

    E. Any
      order, judgment or decree shall be entered against Maker decreeing the
      dissolution or split-up of Maker or any money judgment in excess of $100,000;
      

     

    F. Pursuant
      to or within the meaning of the United States Bankruptcy Code or any other
      federal or state law relating to insolvency or relief of debtors (a “Bankruptcy
      Law”), Maker shall (i) commence a voluntary case or proceeding; (ii) consent to
      the entry of an order for relief against it in an involuntary case; (iii)
      consent to the appointment of a trustee, receiver, assignee, liquidator or
      similar official; (iv) make an assignment for the benefit of its creditors;
      or
      (v) admit in writing its inability to pay its debts as they become due;

     

    G. A
      court
      of competent jurisdiction enters an order or decree under any Bankruptcy Law
      that (i) is for relief against Maker in an involuntary case; (ii) appoints
      a
      trustee, receiver, assignee, liquidator or similar official for

     

    
      
        
        

      

      
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    Maker
      or
      substantially all of Maker’s properties; or (iii) orders the liquidation of
      Maker, and in each case the order or decree is not dismissed or stayed within
      30
      days; or

     

    H. Maker
      shall fail to provide written notice to Holders of the occurrence of any event
      set forth in this Section 9 within 10 days of an officer of Maker having
      knowledge of the occurrence of such event.

     

    10. Optional
      Redemption.
      Subject
      to Section 4 hereof, this Note may be redeemed by Maker at any time, in whole
      or
      in part, prior to the Maturity Date or, if Maker has elected to extend the
      term
      of this Note pursuant to Section 2 hereof, prior to the Extended Maturity Date,
      at a redemption price equal to one hundred percent (100%) of the principal
      amount of this Note being redeemed, plus all accrued but unpaid interest thereon
      (the “Redemption Price”) until and including the Maturity Date or, if Maker has
      elected to extend the term of this Note pursuant to Section 2 hereof, the
      Extended Maturity Date.

     

    11. Mandatory
      Redemption.
      Maker
      shall be obligated to redeem this Note at the Redemption Price within two
      business days after Maker’s receipt of funds from the consummation of a
      Qualified Financing or a Sale of Maker. For purposes hereof, (i) “Qualified
      Financing” shall mean the closing of an equity or debt financing or series of
      equity or debt financings by Maker resulting in aggregate gross cash proceeds
      (before commissions, fees or other expenses) to Maker of $1,000,000 or more
      within 12 months of the date of this Note, and (ii) ”Sale of Maker” shall
      mean a transaction (or series of related transactions) between Maker and one
      or
      more persons or entities, pursuant to which such persons or entities acquire
      (A)
      capital stock of Maker possessing the voting power to elect a majority of the
      board of directors of Maker (whether by merger, consolidation, sale or transfer
      of Maker’s capital stock or otherwise); or (B) all or substantially all of
      Maker’s assets

     

    12. Registration
      Rights.
      In the
      event that Holder elects to convert all or part of this Note into shares of
      Common Stock or is issued additional shares of Common Stock upon extension
      of
      the Note, if any, under Section 8 hereof, Maker hereby grants to Holder the
      following registration rights with respect to all shares of Common Stock issued
      upon the conversion or extension of this Note (for purposes of this Section
      12,
“Registrable Shares”):

     

    (a) If
      Maker
      proposes to register for its own account or for any stockholders any of its
      capital stock or other securities under the Securities Act of 1933, as amended
      (the “Act”) in connection with the public offering of such securities solely for
      cash (other than a registration relating solely to the sale of securities to
      participants in a company stock plan, or an SEC Rule 145 transaction), Maker
      shall, at such time, promptly give Holder written notice of such registration.
      Upon the written request of Holder given within 20 days after Holder’s receipt
      of such notice from Maker, the Maker shall use its commercially reasonable
      best
      efforts to cause to be registered under the Act all of the Registrable Shares
      that Holder has requested to be registered. Notwithstanding the foregoing,
      if
      the managing underwriter, or the Chief Executive Officer of Maker in the event
      of an offering with no underwriters, determines in good faith that marketing
      factors require a limitation of the number of shares to be sold in such
      registration, then the managing underwriter or the Chief Executive Officer
      of
      the Maker, as the case may be, may exclude Registrable Shares of Holder from
      the
      registration, and the number of

     

    
      
        
        

      

      
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    Registrable
      Shares that may be included in the registration and the underwriting shall
      be
      allocated to the Maker; provided, however, that (i) no exclusion of the Holder’s
      Registrable Shares shall be made unless all other stockholders’ securities are
      first excluded and (ii) in no event shall the amount of Registrable Shares
      of
      the Holder included in an offering by the Maker of its securities be reduced
      below 25% of the total amount of securities included in such offering. For
      the
      avoidance of doubt, the Maker may terminate a proposed registration in its
      entirety at any time.

     

    (b) If
      at any
      time the Registrable Shares held by Holder have been registered under Section
      5(a), and if the Maker thereafter hereafter lists its Common Stock (and only
      so
      long as the class of common stock is so listed) on any national securities
      exchange, the Nasdaq Global Market or the Nasdaq Smallcap Market, the Maker
      shall use its commercially reasonable efforts to keep the Registrable Shares
      authorized for listing on such exchange upon notice of issuance.

     

    13. Representations
      And Warranties Of Maker.
      Maker
      has all requisite legal and corporate power to enter into, execute and deliver
      the Note and the Warrant. Each of the Note and the Warrant is the valid and
      binding obligation of Maker, enforceable in accordance with their respective
      terms, except as the same may be limited by bankruptcy, insolvency,
      reorganization, fraudulent conveyance, moratorium, usury or other laws of
      general application relating to or affecting enforcement of creditors’ rights
      and the rules or laws governing specific performance, injunctive relief or
      other
      equitable remedies. All corporate and legal action on the part of Maker, its
      officers, directors and stockholders necessary for the sale and issuance of
      the
      Note and the Warrant, and the performance of Payor’s obligations under the Note
      and the Warrant have been taken. The offer, issue, and sale of the Note and
      Warrant is exempt from the registration requirements under applicable federal
      and state securities laws.

     

    14.  Security.
      As
      security for its payment obligations under this Note, Maker hereby grants Holder
      a security interest in all of the assets of Maker (including after acquired
      property) and the proceeds therefrom as further described in that certain
      Security Agreement, dated as of the date hereof, by and between Maker and
      Holder, the terms of which are incorporated herein by reference.

     

    15. Collection.
      Maker
      promises to pay all costs and expenses (including reasonable attorney fees)
      incurred in connection with the enforcement of the terms of this
      Note.

     

    16. Cumulative
      Remedies.
      Holder’s rights and remedies under this Note shall be cumulative. Holder shall
      have all other rights and remedies not inconsistent herewith as provided under
      the UCC, by law or in equity. No exercise by Holder of one right or remedy
      shall
      be deemed an election, and no waiver by Holder of any Event of Acceleration
      shall be deemed a continuing waiver of such Event of Acceleration or the waiver
      of any other Event of Acceleration.

     

    17. Covenant
      of Holder.
      Holder
      represents to Maker that it is a US person and that is not subject to backup
      withholding because (a) it is exempt from backup withholding or (b) it
      has not been notified by the Internal Revneue Service that it is subject to
      backup withholding as a result of failure to report all interests or dividends,
      or (c) the Internal Revenue

     

    
      
        
        

      

      
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    Service
      has notified Holder that it is no longer subject to backup withholding. Holder’s
      true and correct taxpayer identification number is 48-1280361. Holder hereby
      agrees that for the two year period following the date hereof, Holder will
      not
      enter into or effect any “short sales” (as such term is defined in paragraphs
      (a) through (c) of Rule 200 of Regulation SHE under the Securities Exchange
      Act
      of 1934, as amended) or hedging transaction which establishes a net short
      position respect to the common stock of Maker.

     

    18. Amendment;
      Waiver.
      Any
      modification, amendment or waiver of any term of this Note must be made in
      writing and signed by Holder. No delay by Holder in acting with respect to
      the
      terms of this Note shall constitute a waiver of any breach, default, or failure
      of a condition under this Note. Maker waives presentment, demand, notice of
      dishonor, notice of default or delinquency, notice of acceleration, notice
      of
      protest and nonpayment, notice of costs, expenses or losses and interest
      thereon, notice of interest on interest and diligence in taking any action
      to
      collect any sums owing under this Note or in proceeding against any of the
      rights or interests in or to properties securing payment of this Note.

     

    19. Construction;
      Section Headings.
      This
      Note is the result of negotiations among, and has been reviewed by Holder,
      Maker
      and their respective counsel. Accordingly, this Note shall be deemed to be
      the
      product of all parties hereto and no ambiguity shall be construed in favor
      of or
      against Holder or Maker. The
      headings of Sections in this Note are provided for convenience only and will
      not
      affect its construction or interpretation. All references to “Section” or
“Sections” refer to the corresponding Section or Sections of this Note unless
      otherwise specified. All words used in this Note will be construed to be of
      such
      gender or number as the circumstances require. Unless otherwise expressly
      provided, the words “hereof and “hereunder” and similar references refer to this
      Note in its entirety and not to any specific section or subsection hereof,
      the
      words “including” or “includes” do limit the preceding words or terms and the
      word “or” is used in the inclusive sense

     

    20. Fees
      and Expenses.
      Maker
      shall pay the reasonable fees of one special counsel to Holder and other
      expenses incurred by Holder in connection with the preparation of this Note
      in
      an amount not to exceed $10,000, which amount shall be deducted from the
      proceeds of this Note and paid by Holder on behalf of Maker. As a placement
      fee
      for this Note, Maker shall issue and deliver 65,000 shares of common stock
      (with
      registration rights as set forth in the Warrant) to Holder within business
      five
      days from the date hereof. Maker shall also pay to Ascendiant Securities, LLC
      as
      placement agent on the transaction, a fee (without duplication of the fee
      payable under that certain engagement letter beween Maker and Ascendiant
      Securities) equal to $22,000 (8% of the Note amount) which shall be deducted
      from the proceeds of the Note and a warrant for 103,139 shares (8% of the common
      stock issuable in the transaction) of common stock of Maker at a per share
      exercise price of $0.39 per share. 

     

    21. Notices.
      All
      notices and other communications provided for hereunder shall be in writing
      (including telefacsimile communication) and mailed, telecopied, or delivered
      as
      follows: if to Maker, at its address specified opposite its signature below;
      and
      if to Holder, at the address set forth in the first paragraph of this Note;
      or
      in each case at such other address as shall be designated by Holder or Maker.
      All such notices and communications shall, when mailed, telecopied or sent
      by
      overnight courier, be effective when deposited in the mails, delivered to the
      overnight courier, as the case may be, or sent by telecopier. 

     

    
      
        
        

      

      
        9

        
          

        

      

      
        
        

      

    

    22. Governing
      Law; Jurisdiction.
      This
      Note shall be construed in accordance with the laws of the State of California,
      without resort to that State’s conflict-of-laws rules. Maker hereby irrevocably
      consents to personal jurisdiction in the state and federal courts of the State
      of California and agrees that venue shall be proper is such courts.

     

    23. Severability.
      If
      any
      provision in this Note is held invalid or unenforceable by any court of
      competent jurisdiction, the other provisions of this Note will remain in full
      force and effect. Any provision of this Note held invalid or unenforceable
      only
      in part or degree will remain in full force and effect to the extent not held
      invalid or unenforceable.

     

    [Signature
      Page Follows]

     

    
      
        
        

      

      
        10

        
          

        

      

      
        
        

      

    

    

     

    IN
      WITNESS WHEREOF,
      Maker
      has caused this Note to be executed and delivered by its duly authorized officer
      as of the day and year and at the place first above written.

     

    

     

    
      

      

      ZYNEX
        MEDICAL HOLDINGS, INC.

      

      

       By:  /s/
        Thomas Sandgaard  

                        
        Name: Thomas Sandgaard  

       Title:   President
        and Chief Executive Officer

       

    

    
      	
            	 Address:	
              8100
                Southpark Way, Suite A-9 
                Littleton,
                  Colorado 80120

              

            

    

     

     

     

    AGREED
      AND ACKNOWLEDGED:

     

    ASCENDIANT
      CAPITAL GROUP, LLC

     

    

     

    By:_/s/
      Bradley J. Wilhite_________________

    Name: 
      Bradley J. Wilhite

    
      Title: 
        Managing Director

    

    

     

    
      
        
        

      

      
        11

        
          

        

      

      
        
        

      

    

    

     

    EXHIBIT
      A

     

    FORM
      OF
      WARRANT

     

    12

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