Exhibit 4.2

    

    

    THE INDEBTEDNESS EVIDENCED BY THIS NOTE (AS DEFINED BELOW) IS SUBORDINATE TO THE INDEBTEDNESS OF SANUWAVE HEALTH, INC. (OR ANY SUCCESSOR THERETO) TO NH EXPANSION CREDIT FUND HOLDINGS LP, TO THE
      EXTENT AND PURSUANT TO THE TERMS OF THAT CERTAIN SUBORDINATION AGREEMENT, DATED AS OF AUGUST [●], 2021, BY AND BETWEEN NH EXPANSION CREDIT FUND HOLDINGS LP AND LEVISTON RESOURCES, LLC, AS AMENDED, RESTATED, AMENDED AND RESTATED, SUPPLEMENTED OR
      OTHERWISE MODIFIED FROM TIME TO TIME (OR ANY SUCCESSOR AGREEMENT WHICH REPLACES AND REFERENCES SUCH AGREEMENT).

    

    

    NEITHER THE ISSUANCE AND SALE OF THE SECURITIES REPRESENTED BY THIS CERTIFICATE NOR THE SECURITIES INTO WHICH THESE SECURITIES ARE CONVERTIBLE HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933,
      AS AMENDED, OR APPLICABLE STATE SECURITIES LAWS. THE SECURITIES MAY NOT BE OFFERED FOR SALE, SOLD, TRANSFERRED OR ASSIGNED (I) IN THE ABSENCE OF (A) AN EFFECTIVE REGISTRATION STATEMENT FOR THE SECURITIES UNDER THE SECURITIES ACT OF 1933, AS AMENDED,
      OR (B) AN OPINION OF COUNSEL SELECTED BY THE HOLDER, IN A GENERALLY ACCEPTABLE FORM, THAT REGISTRATION IS NOT REQUIRED UNDER SAID ACT, OR (II) UNLESS SOLD PURSUANT TO RULE 144 OR RULE 144A UNDER SAID ACT. NOTWITHSTANDING THE FOREGOING, THE SECURITIES
      MAY BE PLEDGED IN CONNECTION WITH A BONA FIDE MARGIN ACCOUNT OR OTHER LOAN OR FINANCING ARRANGEMENT SECURED BY THE SECURITIES. ANY TRANSFEREE OF THIS NOTE SHOULD CAREFULLY REVIEW THE TERMS OF THIS NOTE. THE PRINCIPAL AMOUNT REPRESENTED BY THIS NOTE
      AND, ACCORDINGLY, THE SECURITIES ISSUABLE UPON CONVERSION HEREOF MAY BE LESS THAN THE AMOUNTS SET FORTH ON THE FACE HEREOF.

    

    

    SANUWAVE Health, Inc.

    

    

    FUTURE ADVANCE CONVERTIBLE PROMISSORY NOTE

    

    

    	
            Issuance Date: August [●], 2021

          	
            Principal Amount: Up to U.S. $[●]

          


    

    

    FOR VALUE RECEIVED, SANUWAVE Health,
        Inc., a corporation organized under the laws of Nevada (the "Company"), pursuant to this Future Advance Convertible Promissory Note (this “Note”) hereby promises to pay
        to          , its designee or registered assigns (the "Holder") in cash and/or in shares of Common Stock (as defined in Section 26) the principal amount (as reduced pursuant to the terms hereof pursuant to
        redemption, conversion or otherwise, the "Principal") as may be advanced in disbursements, after giving effect to a 8% original issue discount (each, a “Disbursement”
        and together, the “Disbursements” with total principal of outstanding Disbursements equaling Principal), and to pay interest at a rate of five percent (5%) per annum ("Interest")


        on any outstanding Principal at the applicable Interest Rate from the date of this Note, acceleration, conversion, redemption or otherwise (in each case in accordance with the terms hereof). Certain capitalized terms used herein are defined in
        Section 26. This Note is issued pursuant to that certain Securities Purchase Agreement dated August [●], 2021, by and among the Company and the Purchaser (the "Purchase
          Agreement"), and capitalized terms not defined herein will have the meanings set forth in the Purchase Agreement.

    

    

    
      
        (1) PAYMENTS OF PRINCIPAL; PREPAYMENT. On the Disbursement Maturity Date, the Company shall pay to the Holder the applicable principal amount of the Disbursement in cash and/or shares of Common Stock and accrued and unpaid Interest on such Disbursement’s principal and
            Interest.

      

    

    

    

    
      
        


    

    
    (2) INTEREST. Interest for each of the Disbursements under this Note shall commence accruing on the date hereof at the Interest Rate and shall be computed on the basis of a 360-day year and
      twelve 30-day months.  Interest shall be payable on the Disbursement Maturity Date in cash by wire transfer of immediately available funds pursuant to wire instructions provided by the Holder in writing to the Company, shares of Common Stock or a
      combination thereof at the Holder’s discretion and if such date falls on a Holiday, the next day that is not a Holiday, to the record holder of this Note. Prior to the payment of Interest, Interest on this Note shall accrue at the Interest Rate and
      be payable by way of inclusion of the Interest in the Conversion Amount (as defined in Section 3(b)(i)) on each (i) Disbursement Conversion Date (as defined in Section 3(c)(ii)) in accordance with Section 3(c)(i) and/or (ii) Redemption Date.

    

    

    (3) CONVERSION OF NOTE. Following the Issuance Date, as set out above, this Note shall be convertible into shares of Common Stock on the terms and conditions set forth in this Section 3.

    

    

    (a) Optional Conversion Right. Subject to the provisions of Section 3(d)(i) and Section 3(d)(ii), at any time or times on or after the Issuance Date of this Note, the Holder shall be entitled
      to convert any portion of the outstanding and unpaid Conversion Amount into fully paid and nonassessable shares of Common Stock in accordance with Section 3(c), at the Conversion Rate (as defined below). The Company shall not issue any fraction of a
      share of Common Stock upon any conversion. If the issuance would result in the issuance of a fraction of a share of Common Stock, the Company shall round such fraction of a share of Common Stock up to the nearest whole share. The Company shall pay
      any and all transfer, stamp and similar taxes that may be payable with respect to the issuance and delivery of Common Stock upon conversion of any Conversion Amount. The Holder shall have the right to deliver an effective conversion notice at any
      time until 11:59 pm on the chosen date and it shall be immediately effective.

    

    

    (b) Conversion Rate. The number of shares of Common Stock issuable upon conversion of any Conversion Amount pursuant to Section 3(a) shall be determined by dividing (x) such Conversion Amount
      by (y) the Conversion Price (the "Conversion Rate").

    

    

    (i) "Conversion Amount" means the sum of (A) the portion of the Principal to be converted, redeemed or otherwise with respect to which this
      determination is being made and (B) accrued and unpaid Interest with respect to such Principal.

    

    

    (ii) "Conversion Price" Provided no Event of Default has occurred, (A) until the date of effectiveness of the Company’s registration
      statement registering the Conversion Shares, the Conversion Price shall equal $0.18, and (B) after the date of effectiveness of the Company’s registration statement registering the Conversion Shares, the Conversion Price shall equal the lower of: (i)
      $0.18, and (ii) ninety percent (90%) of the Closing Bid Price on the date of effectiveness of the Company’s registration statement registering the Conversion Shares. Following an Event of Default, the Conversion Price shall equal the lower of: (i)
      $0.18, and (ii) ninety percent (90%) of the Closing Bid Price on the date of effectiveness of the Company’s registration statement registering the Conversion Shares, and (iii) 75% of the lowest VWAP price for Common Stock during the ten trading days
      ending on, and including, the date of the notice of conversion, which shall be no lower than $0.01.

    

    

    
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    (c) Mechanics of Optional Conversion and Adjustment:

    

    

    (i) Registration; Book-Entry. The Company shall maintain a register (the "Register") for the recordation of the holder of the Note
      and the Principal amount of the Note (and stated interest thereon) held by the holder (the "Registered Note"). The entries in the Register, made in good faith, shall be conclusive and binding for all purposes
      absent manifest error. The Company and the holder of the Note shall treat each Person whose name is recorded in the Register as the owner of the Note for all purposes, including, without limitation, the right to receive payments of Principal and
      Interest, if any, hereunder, notwithstanding notice to the contrary. Upon its receipt of a request to assign or sell all or part of the Registered Note by the Holder, the Company shall record the information contained therein in the Register and
      issue one or more new Registered Notes in the same aggregate Principal amount as the Principal amount of the surrendered Registered Note to the designated assignee or transferee pursuant to Section 10. Notwithstanding anything to the contrary in this
      Section 3(c)(i), the Holder may assign any Note or any portion thereof to an Affiliate of such Holder or a Related Fund of such Holder without delivering a request to assign or sell such Note to the Company and the recordation of such assignment or
      sale in the Register (a "Related Party Assignment"); provided, that (x) the Company may continue to deal solely with such assigning or selling Holder unless and until such Holder has delivered a request
      to assign or sell such Note or portion thereof to the Company for recordation in the Register; (y) the failure of such assigning or selling Holder to deliver a request to assign or sell such Note or portion thereof to the Company shall not affect the
      legality, validity, or binding effect of such assignment or sale and (z) such assigning or selling Holder shall, acting solely for this purpose as a non-fiduciary agent of the Company, maintain a register (the "Related


        Party Register") comparable to the Register on behalf of the Company, and any such assignment or sale shall be effective upon recordation of such assignment or sale in the Related Party Register. Notwithstanding anything to the contrary set
      forth herein, upon conversion of any portion of this Note in accordance with the terms hereof, the Holder shall not be required to physically surrender this Note to the Company unless the Holder has provided the Company with prior written notice
      (which notice may be included in a Conversion Notice) requesting reissuance of this Note upon physical surrender of this Note. The Holder and the Company shall maintain records showing the Principal and Interest, converted and the dates of such
      conversions or shall use such other method, reasonably satisfactory to the Holder and the Company, so as not to require physical surrender of this Note upon conversion.

    

    

    (ii) Registration Rights. This Note is issued pursuant to the terms of that certain Registration Rights Agreement dated August [●],
      2021, by and among the Company and the Holder (the "Registration Rights Agreement").

    

    

    (iii) Optional Repayment (“Optional Redemption”). At the Company’s option and upon thirty (30) days’ notice to the
      Holder, the Note may be redeemed at any time at an amount equal to one hundred and twenty-five percent (125%) of the outstanding Principal and accrued and unpaid Interest (the “Optional Redemption Price”). Such
      notice shall specify the date of such Optional Redemption (the “Optional Redemption Date”). The foregoing notwithstanding, the Holder may convert any or all of this Note into shares of Common Stock at any time.

     

    

    
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    (d) Limitations on Conversions.

    

    

    (i) Beneficial Ownership. Notwithstanding anything to the contrary contained in this Note, this Note shall not be convertible by
      the Holder hereof, and the Company shall not effect any conversion of this Note or otherwise issue any shares of Common Stock pursuant hereto, to the extent (but only to the extent) that after giving effect to such conversion or other share issuance
      hereunder the Holder (together with its affiliates) would beneficially own in excess of 4.99% (or upon election of the Holder, 9.99%) (the “Maximum Percentage”) of the Common Stock. To the extent the above
      limitation applies, the determination of whether this Note shall be convertible (vis-à-vis other convertible, exercisable or exchangeable securities owned by the Holder or any of its affiliates) shall, subject to such Maximum Percentage limitation,
      be determined on the basis of the first submission to the Company for conversion, exercise or exchange (as the case may be). No prior inability to convert this Note, or to issue shares of Common Stock, pursuant to this paragraph shall have any effect
      on the applicability of the provisions of this paragraph with respect to any subsequent determination of convertibility. For purposes of this paragraph, beneficial ownership and all determinations and calculations (including, without limitation, with
      respect to calculations of percentage ownership) shall be determined in accordance with Section 13(d) of the 1934 Act (as defined in the Purchase Agreement) and the rules and regulations promulgated thereunder. The provisions of this paragraph shall
      be implemented in a manner otherwise than in strict conformity with the terms of this paragraph to correct this paragraph (or any portion hereof) which may be defective or inconsistent with the intended Maximum Percentage beneficial ownership
      limitation herein contained or to make changes or supplements necessary or desirable to properly give effect to such Maximum Percentage limitation. The limitations contained in this paragraph shall apply to a successor Holder of this Note. The
      holders of Common Stock shall be third party beneficiaries of this paragraph and the Company may not waive this paragraph without the consent of holders of a majority of its Common Stock. For any reason at any time, upon the written or oral request
      of the Holder, the Company shall within one (1) Business Day confirm orally and in writing to the Holder the number of shares of Common Stock then outstanding, including by virtue of any prior conversion or exercise of convertible or exercisable
      securities into Common Stock, including, without limitation, pursuant to this Note or securities issued pursuant to the Purchase Agreement.

    

    

    (ii) Principal Market Regulation. Unless permitted by the applicable rules and regulations of the Principal Market, the Company shall not issue any shares of Common Stock
      upon conversion of this Note if the issuance of such shares of Common Stock would exceed the aggregate number of shares of Common Stock which the Company may issue upon exercise or conversion (as the case may be) of the Note without breaching the
      Company’s obligations under the rules or regulations of the Principal Market (the number of shares which may be issued without violating such rules and regulations, the “Exchange Cap”). Notwithstanding the
      foregoing, such limitation shall not apply in the event that the Company (A) obtains the approval of its stockholders as required by the applicable rules of the Principal Market for issuances of shares of Common Stock in excess of such amount or (B)
      obtains a written opinion from outside counsel to the Company that such approval is not required, which opinion shall be reasonably satisfactory to the Holder. In the event that any Holder shall sell or otherwise transfer any of such Holder’s Note,
      the Exchange Cap restrictions set forth herein shall continue to apply to the Note and such transferee.

     

    

    (e) Disputes. In the event of a dispute as to the number of shares of Common Stock issuable to the Holder in connection with a conversion of this Note, the Company shall issue to the Holder the number of shares
      of Common Stock not in dispute and resolve such dispute in accordance with Section 16.

    

    

    (4) Reserved

    

    

    (5) RIGHTS UPON EVENT OF DEFAULT.

    

    

    
      
        (a) Event of Default. Each of the following
            events shall constitute an "Event of Default”; provided, however, that, except in the case of the Events of Default listed in Sections 5(a)(i), 5(a)(ix) or
            5(a)(xxiv) below, the Company shall have five (5) business days after notice of default from the Holder to cure such Event of Default unless a lesser number of days is required pursuant to the provisions of this Section 5.

      

    

    

    

    
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    (i) Failure to Pay Principal or Interest. The Company fails to pay the Principal or Interest due at the Disbursement Maturity Date, liquidated damages and other amounts
      thereon when due on the Note whether at maturity, upon acceleration or otherwise.

    

    

    (ii) Conversion and the Shares. The Company (i) fails to issue Conversion Shares to the Holder (or announces or threatens in writing that it will not honor its obligation
      to do so) upon exercise by the Holder of the conversion rights of the Holder in accordance with the terms of the Note, (ii) fails to transfer or cause its transfer agent to transfer (issue) (electronically or in certificated form) any certificate for
      the Conversion Shares issuable to the Holder upon conversion of or otherwise pursuant to the Note as and when required by the Note, or (iii) the Company directs its transfer agent not to transfer or delays, impairs, and/or hinders its transfer agent
      in transferring (or issuing) (electronically or in certificated form) any certificate for the Conversion Shares issuable to the Holder upon conversion of or otherwise pursuant to the Note as and when required by the Note, or fails to remove (or
      directs its transfer agent not to remove or impairs, delays, and/or hinders its transfer agent from removing) any restrictive legend (or to withdraw any stop transfer instructions in respect thereof) on any certificate for any Conversion Shares
      issued to the Holder upon conversion of or otherwise pursuant to the Note as and when required by the Note (or makes any written announcement, statement or threat that it does not intend to honor the obligations described in this paragraph) and any
      such failure shall continue uncured (or any written announcement, statement or threat not to honor its obligations shall not be rescinded in writing) for five (5) business days after the Holder shall have delivered a Notice of Conversion. It is an
      obligation of the Company to remain current in its obligations to its transfer agent. It shall be an Event of Default of the Note, if a conversion of the Note is delayed, hindered or frustrated due to a balance owed by the Company to its transfer
      agent. If at the option of the Holder, the Holder advances any funds to the Company’s transfer agent in order to process a conversion, such advanced funds shall be paid by the Company to the Holder within forty-eight (48) hours of a demand from the
      Holder. If Borrower is unable to do so, they shall have an opportunity to cure within five (5) business days.

    

    

    (iii) Breach of Agreements and Covenants. The Company breaches any material agreement, covenant or other material term or condition contained in the Purchase Agreement, the
      Note or in any agreement, statement or certificate given in writing pursuant hereto or in connection herewith or therewith (collectively, the “Transaction Documents”), and such breach results in a Material
      Adverse Effect on the business or assets of the Company; for the avoidance of doubt a failure of the Company to file a registration statement by the “Filing Date” and have the same declared effective by the “Effectiveness Date” as provided in the
      Registration Rights Agreement will constitute a breach of a material agreement that results in Material Adverse Effect on the business of the Company for purposes of this Note and the Purchase Agreement.

    

    

    (iv) Breach of Representations and Warranties. Any representation or warranty of the Company made in the Purchase Agreement or the Note, or in any agreement, statement or
      certificate given in writing pursuant hereto or in connection herewith or therewith shall be false or misleading in any material respect when made and the breach of which has (or with the passage of time will have) a Material Adverse Effect on the
      rights of the Holder with respect to the Note or the Purchase Agreement. In the event of such a breach, the Company shall have an opportunity to cure within two (2) business days.

    

    

    (v) Receiver or Trustee. The Company or any subsidiary of the Company shall make an assignment for the benefit of creditors, or apply for or consent to the appointment of a
      receiver or trustee for it or for a substantial part of its property or business, or such a receiver or trustee shall otherwise be appointed. Under such circumstances, the Company shall have an opportunity to cure within sixty (60) days.

    

    

    
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    (vi) Judgments. Any money judgment, writ or similar process shall be entered or filed against the Company or any subsidiary of the Company or any of its property or other
      assets for more than $1,000,000 and shall remain unvacated, unbonded or unstayed for a period of twenty (20) days unless otherwise consented to by the Holder, which consent will not be unreasonably withheld, conditioned or delayed.

    

    

    (vii) Bankruptcy. Bankruptcy, insolvency, reorganization or liquidation proceedings or other proceedings, voluntary or involuntary, for relief under any bankruptcy law or
      any law for the relief of debtors shall be instituted by or against the Company or any subsidiary of the Company. Under such circumstances, the Company shall have an opportunity to cure within sixty (60) days.

    

    

    (viii) Delisting or Trading of Common Stock. The Company shall fail to maintain the listing or quotation of its Common Stock minimally on a Trading Market, which shall
      include the OTC pink sheets pro-rata based on the entire amount raised.

    

    

    (ix) Failure to Comply with the 1934 Act.  After December 1, 2021, the Company shall (i) fail within ten (10) calendar days of the Closing Date, to file (a) its Quarterly
      Report on Form 10-Q/A for the quarterly period ended September 30, 2020; and (b) its Annual Report on Form 10-K for the fiscal year ended December 31, 2020; (ii) fail to file all 10-Qs and 10-Ks within the time periods required by the 1934 Act; or
      (c) cease to be subject to the reporting requirements of the 1934 Act.

    

    

    (x) Liquidation. Any dissolution, liquidation, or winding up of Borrower or any substantial portion of its business or assets.

    

    

    (xi) Cessation of Operations. Any cessation of operations by Borrower or Borrower admits it is otherwise generally unable to pay its debts as such debts become due,
      provided, however, that any disclosure of the Company’s ability to continue as a “going concern” shall not be an admission that the Company cannot pay its debts as they become due.

    

    

    (xii) Reverse Splits. The Company effectuates a reverse split of its Common Stock without twenty (20) days prior written notice to the Holder or for a ratio in excess of
      20:1. For the avoidance of doubt, each party hereto agrees that in the event the Company executes a reverse stock split of its Common Stock, the resulting adjusted Conversion Price shall be limited to a 20:1 ratio.

    

    

    (xiii) DTC “Chill”. The DTC places a “chill” (i.e. a restriction placed by DTC on one or more of DTC’s services, such as limiting a DTC participant’s ability to make a
      deposit or withdrawal of the security at DTC) on any of the Company’s securities. In the event of such a breach, the Company shall have an opportunity to cure within twenty (20) business days.

    

    

    (xiv) Reserved.

    

    

    (xv) Default under Transaction Documents or Other Material Agreement. A default or event of default (subject to any grace or cure period provided in the applicable
      agreement, document or instrument) shall occur under any material agreement, lease, document or instrument to which the Company or any Subsidiary is obligated, which results in a Material Adverse Effect.

     

    

    
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    (xvi) Default under Mortgage or Other Agreement of Indebtedness. Company or any Subsidiary shall default on any of its obligations under any mortgage, credit agreement or
      other facility, indenture agreement, factoring agreement or other instrument under which there may be issued, or by which there may be secured or evidenced, any indebtedness for borrowed money or money due under any long term leasing or factoring
      arrangement that (a) involves an obligation greater than $4,000,000, whether such indebtedness now exists or shall hereafter be created, and (b) results in such indebtedness becoming or being declared due and payable prior to the date on which it
      would otherwise become due and payable.

    

    

    (xvii) The Occurrence of a Change in Control Transaction. Company shall be a party to any Change of Control Transaction or Fundamental Transaction.

    

    

    (xviii) Failure to Meet the Requirements under Rule 144. Company does not meet the current public information requirements under Rule 144.

    

    

    (xix) Failure to Maintain Intellectual Property. The failure by Company or any material Subsidiary to maintain any material intellectual property rights, personal, real
      property, equipment, leases or other assets which are necessary to conduct its business (whether now or in the future) and such breach is not cured with twenty (20) days after written notice to the Company from the Holder.

    

    

    (xx) Trading Suspension. A Commission or judicial stop trade order or suspension from a Trading Market.

    

    

    (xxi) Restatement of Financial Statements. The restatement after the date hereof of any financial statements filed by the Company with the Commission for any date or period
      from two years prior to the Issuance Date and until this Note is no longer outstanding (other than any restatement of the financial statements relating for the fiscal quarter ended September 30, 2020), if the result of such restatement would, by
      comparison to the unrestated financial statements, have constituted a Material Adverse Effect. For the avoidance of doubt, any restatement related to new accounting pronouncements shall not constitute a default under this Section.

    

    

    (xxii) Failure to Provide Required Notification of a Material Event. A failure by Company to notify Holder of any material event of which Company is obligated to notify
      Holder pursuant to the terms of this Note or any other Transaction Document.

    

    

    (xxiii) Invalidity or Unenforceability of Transaction Documents. Any material provision of any Transaction Document shall at any time for any reason (other than pursuant to
      the express terms thereof) cease to be valid and binding on or enforceable against the Company, or the validity or enforceability thereof shall be contested by Company, or a proceeding shall be commenced by Company or any governmental authority
      having jurisdiction over Company or Holder, seeking to establish the invalidity or unenforceability thereof, or Company shall deny in writing that it has any liability or obligation purported to be created under any Transaction Document.

    

    

    (xxiv) Effective Registration Statement. Failure to comply with the Registration Rights Agreement or Purchase Agreement.

    

    

    
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    (b) Redemption Right. At any time after the Holder becoming aware of an Event of Default, the Holder may require the Company to redeem (an "Event of Default
        Redemption") all or any portion of this Note by delivering written notice thereof (the "Event of Default Redemption Notice") to the Company, which Event of Default Redemption Notice shall indicate the
      portion of this Note the Holder is electing to require the Company to redeem. Each portion of this Note subject to redemption by the Company pursuant to this Section 5(b) shall be redeemed by the Company in cash by wire transfer of immediately
      available funds at a price equal to principal amount plus interest calculated from the Event of Default at the greater of the Default Interest Rate or the maximum rate permitted under applicable law (the "Event of
        Default Redemption Price") together with liquidated damages of $250,000 pro-rata based on the entire amount raised plus an amount in cash equal to 1% of the Event of Default Redemption Price for each
      30 day period during which redemptions fail to be made with a cap at 5%. Redemptions required by this Section 5(b) shall be made in accordance with the provisions of Section 10. To the extent redemptions required by this Section 5(b) are deemed or
      determined by a court of competent jurisdiction to be prepayments of the Note by the Company, such redemptions shall be deemed to be voluntary prepayments. Notwithstanding anything to the contrary in this Section 5, but subject to Section 3(b)(ii)
      and 3(d), until the Event of Default Redemption Price (together with any interest thereon) is paid in full, the Conversion Amount submitted for redemption under this Section 5(b) (together with any interest thereon) may be converted, in whole or in
      part, by the Holder into Common Stock pursuant to Section 3. The parties hereto agree that in the event of the Company's redemption of any portion of the Note under this Section 5(b), the Holder's damages would be uncertain and difficult to estimate
      because of the parties' inability to predict future interest rates and the uncertainty of the availability of a suitable substitute investment opportunity for the Holder. Accordingly, any Event of Default redemption premium due under this Section
      5(b) is intended by the parties to be, and shall be deemed, a reasonable estimate of the Holder's actual loss of its investment opportunity and not as a penalty.

    

    

    (6) RIGHTS UPON FUNDAMENTAL TRANSACTION.

    

    

    (a) If, at any time while this Note is outstanding, (i) the Company effects a Fundamental Transaction, then, upon any subsequent conversion of this Note, the Holder shall have the right to
      receive, for each Conversion Share that would have been issuable upon such conversion immediately prior to the occurrence of such Fundamental Transaction, the same kind and amount of securities, cash or property as it would have been entitled to
      receive upon the occurrence of such Fundamental Transaction if it had been, immediately prior to such Fundamental Transaction, the holder of one (1) share of Common Stock (the “Alternate Consideration”). For purposes of any such conversion,
      the determination of the Conversion Price shall be appropriately adjusted to apply to such Alternate Consideration based on the amount of Alternate Consideration issuable in respect of one (1) share of Common Stock in such Fundamental Transaction,
      and the Company shall apportion the Conversion Price among the Alternate Consideration in a reasonable manner reflecting the relative value of any different components of the Alternate Consideration. If holders of Common Stock are given any choice as
      to the securities, cash or property to be received in a Fundamental Transaction, then the Holder shall be given the same choice as to the Alternate Consideration it receives upon any conversion of this Debenture following such Fundamental
      Transaction. To the extent necessary to effectuate the foregoing provisions, any successor to the Company or surviving entity in such Fundamental Transaction shall issue to the Holder a new debenture consistent with the foregoing provisions and
      evidencing the Holder’s right to convert such debenture into Alternate Consideration. The terms of any agreement pursuant to which a Fundamental Transaction is effected shall include terms requiring any such successor or surviving entity to comply
      with the provisions of this Section 6(a) and insuring that this Note (or any such replacement security) will be similarly adjusted upon any subsequent transaction analogous to a Fundamental Transaction.

    
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    (7) DISTRIBUTION OF ASSETS; RIGHTS UPON ISSUANCE OF PURCHASE RIGHTS AND OTHER CORPORATE EVENTS.

    

    

    (a) Distribution of Assets. If the Company shall declare or make any dividend or other distributions of its assets (or rights to acquire its assets) to any or all holders of shares of Common
      Stock, by way of return of capital or otherwise (including without limitation, any distribution of cash, stock or other securities, property, options, evidence of Indebtedness or any other assets by way of a dividend, spin off, reclassification,
      corporate rearrangement, scheme of arrangement or other similar transaction) (the "Distributions"), then the Holder will be entitled to such Distributions as if the Holder had held the number of shares of
      Common Stock acquirable upon complete conversion of this Note (without taking into account any limitations or restrictions on the convertibility of this Note) immediately prior to the date on which a record is taken for such Distribution or, if no
      such record is taken, the date as of which the record holders of Common Stock are to be determined for such Distributions and the portion of such Distribution shall be held in abeyance for the Holder until such time or times as its right thereto
      would not result in the Holder and the other Attribution Parties exceeding the Maximum Percentage, at which time or times the Holder shall be granted such rights (and any rights under this Section 7(a) on such initial rights or on any subsequent such
      rights to be held similarly in abeyance) to the same extent as if there had been no such limitation).

    

    

    (b) Purchase Rights. If at any time the Company grants, issues or sells any Options, Convertible Securities or rights to purchase stock, warrants, securities or other property pro rata to the
      record holders of any class of Common Stock (the "Purchase Rights"), then the Holder will be entitled to acquire or receive, as applicable, upon the terms applicable to such Purchase Rights, the aggregate
      Purchase Rights which the Holder could have acquired if the Holder had held the number of shares of Common Stock acquirable upon complete conversion of this Note (without taking into account any limitations or restrictions on the convertibility of
      this Note) immediately prior to the date on which a record is taken for the grant, issuance or sale of such Purchase Rights, or, if no such record is taken, the date as of which the record holders of shares of Common Stock are to be determined for
      the grant, issue or sale of such Purchase Rights (provided, however, that to the extent that the Holder's right to participate in any such Purchase Right would result in the Holder and the other Attribution Parties exceeding the
      Maximum Percentage, then the Holder shall not be entitled to participate in such Purchase Right to such extent (and shall not be entitled to beneficial ownership of such shares of Common Stock as a result of such Purchase Right (and beneficial
      ownership) to such extent) and such Purchase Right to such extent shall be held in abeyance for the Holder until such time or times as its right thereto would not result in the Holder and the other Attribution Parties exceeding the Maximum
      Percentage, at which time or times the Holder shall be granted such right (and any Purchase Right granted, issued or sold on such initial Purchase Right or on any subsequent Purchase Right to be held similarly in abeyance) to the same extent as if
      there had been no such limitation).

    

    

    (c) Other Corporate Events. In addition to and not in substitution for any other rights hereunder, prior to the occurrence or consummation of any Fundamental Transaction pursuant to which
      holders of shares of Common Stock are entitled to receive securities, cash, assets or other property with respect to or in exchange for shares of Common Stock (a "Corporate Event"), the Company shall make
      appropriate provision to ensure that, and any applicable Successor Entity or Successor Entities shall ensure that, and it shall be a required condition to the occurrence or consummation of such Corporate Event that, the Holder will thereafter have
      the right to receive upon conversion of this Note at any time after the occurrence or consummation of the Corporate Event, shares of Common Stock or Successor Capital Stock or, if so elected by the Holder, cash in lieu of the shares of Common Stock
      (or other securities, cash, assets or other property) purchasable upon the conversion of this Note prior to such Corporate Event, such shares of stock, securities, cash, assets or any other property whatsoever (including warrants or other purchase or
      subscription rights and any shares of Common Stock) which the Holder would have been entitled to receive upon the occurrence or consummation of such Corporate Event or the record, eligibility or other determination date for the event resulting in
      such Corporate Event, had this Note been converted immediately prior to such Corporate Event or the record, eligibility or other determination date for the event resulting in such Corporate Event (without regard to any limitations on conversion of
      this Note). Provision made pursuant to the preceding sentence shall be in a form and substance satisfactory to the Holder. The provisions of this Section 7 shall apply similarly and equally to successive Corporate Events.

     

    

    
      9

      
        


    

    (8) RIGHTS UPON ISSUANCE OF OTHER SECURITIES. 

    

    

    (A) Adjustment of Conversion Price upon Subdivision or Combination of Common Stock. If the Company at any time on or after the Issuance Date subdivides (by any stock split,
      stock dividend, recapitalization or otherwise) other than for a reverse split effectuated to comply with Nasdaq listing standards, one or more classes of its outstanding shares of Common Stock into a greater number of shares, the Conversion Price in
      effect immediately prior to such subdivision will be proportionately reduced. If the Company at any time on or after the Issuance Date combines (by combination, reverse stock split or otherwise) one or more classes of its outstanding shares of Common
      Stock into a smaller number of shares, the Conversion Price in effect immediately prior to such combination will be proportionately increased.

    

    

    
      (B) Certain Adjustments.

    

    

    

    (a) Adjustment Upon Issuance of Shares of Common Stock. If and whenever on or after the date hereof, the Company issues or sells, or in accordance with this Section 8(B) is
      deemed to have issued or sold, any shares of Common Stock (including the issuance or sale of shares of Common Stock owned or held by or for the account of the Company, but excluding any Exempt Issuance issued or sold or deemed to have been issued or
      sold) for a consideration per share (the “New Issuance Price”) less than a price equal to the Conversion Price in effect immediately prior to such issue or sale or deemed issuance or sale (such Conversion Price then in effect is referred to as
      the “Applicable Price”) (the foregoing a “Dilutive Issuance”), then immediately after such Dilutive Issuance, the Conversion Price then in effect shall be reduced to the New Issuance Price. For all purposes of the foregoing (including,
      without limitation, determining the adjusted Conversion Price and consideration per share under this Section 8(B)), the following shall be applicable:

    

    

    (i) Issuance of Options. If the Company in any manner grants or sells any Options (other than Options that qualify as Exempt Issuances) and the lowest price per share for
      which one share of Common Stock is issuable upon the exercise of any such Option or upon conversion, exercise or exchange of any Convertible Securities issuable upon exercise of any such Option is less than the Applicable Price, then such share of
      Common Stock shall be deemed to be outstanding and to have been issued and sold by the Company at the time of the granting or sale of such Option for such price per share. For purposes of this Section 8(B)(a)(i), the “lowest price per share for which
      one share of Common Stock is issuable upon the exercise of any such Options or upon conversion, exercise or exchange of any Convertible Securities issuable upon exercise of any such Option” shall be equal to (1) the lower of (x) the sum of the lowest
      amounts of consideration (if any) received or receivable by the Company with respect to any one share of Common Stock upon the granting or sale of such Option, upon exercise of such Option and upon conversion, exercise or exchange of any Convertible
      Security issuable upon exercise of such Option and (y) the lowest exercise price set forth in such Option for which one share of Common Stock is issuable upon the exercise of any such Options or upon conversion, exercise or exchange of any
      Convertible Securities issuable upon exercise of any such Option minus (2) the sum of all amounts paid or payable to the holder of such Option (or any other Person) upon the granting or sale of such Option, upon exercise of such Option and upon
      conversion, exercise or exchange of any Convertible Security issuable upon exercise of such Option plus the value of any other consideration received or receivable by, or benefit conferred on, the holder of such Option (or any other Person). Except
      as contemplated below, no further adjustment of the Conversion Price shall be made upon the actual issuance of such shares of Common Stock or of such Convertible Securities upon the exercise of such Options or upon the actual issuance of such shares
      of Common Stock upon conversion, exercise or exchange of such Convertible Securities.

     

    

    
      10

      
        


    

    (ii) Issuance of Convertible Securities. If the Company in any manner issues or sells any Convertible Securities (other than Convertible Securities that qualify as Exempt
      Issuances) and the lowest price per share for which one share of Common Stock is issuable upon the conversion, exercise or exchange thereof is less than the Applicable Price, then such share of Common Stock shall be deemed to be outstanding and to
      have been issued and sold by the Company at the time of the issuance or sale of such Convertible Securities for such price per share. For the purposes of this Section 8(B)(a)(ii), the “lowest price per share for which one share of Common Stock is
      issuable upon the conversion, exercise or exchange thereof” shall be equal to (1) the lower of (x) the sum of the lowest amounts of consideration (if any) received or receivable by the Company with respect to one share of Common Stock upon the
      issuance or sale of the Convertible Security and upon conversion, exercise or exchange of such Convertible Security and (y) the lowest conversion price set forth in such Convertible Security for which one share of Common Stock is issuable upon
      conversion, exercise or exchange thereof minus (2) the sum of all amounts paid or payable to the holder of such Convertible Security (or any other Person) upon the issuance or sale of such Convertible Security plus the value of any other
      consideration received or receivable by, or benefit conferred on, the holder of such Convertible Security (or any other Person). Except as contemplated below, no further adjustment of the Conversion Price shall be made upon the actual issuance of
      such shares of Common Stock upon conversion, exercise or exchange of such Convertible Securities, and if any such issue or sale of such Convertible Securities is made upon exercise of any Options for which adjustment of this Note has been or is to be
      made pursuant to other provisions of this Section 8(B)(a), except as contemplated below, no further adjustment of the Conversion Price shall be made by reason of such issue or sale.

    

    

    (iii) Change in Option Price or Rate of Conversion. If the purchase or exercise price provided for in any Options, the additional consideration, if any, payable upon the
      issue, conversion, exercise or exchange of any Convertible Securities, or the rate at which any Convertible Securities are convertible into or exercisable or exchangeable for shares of Common Stock increases or decreases at any time, the Conversion
      Price in effect at the time of such increase or decrease shall be adjusted to the Conversion Price which would have been in effect at such time had such Options or Convertible Securities provided for such increased or decreased purchase price,
      additional consideration or increased or decreased conversion rate, as the case may be, at the time initially granted, issued or sold. For purposes of this Section 8(B)(a)(iii), if the terms of any Option or Convertible Security that was outstanding
      as of the date of issuance of this Note are increased or decreased in the manner described in the immediately preceding sentence, then such Option or Convertible Security and the shares of Common Stock deemed issuable upon exercise, conversion or
      exchange thereof shall be deemed to have been issued as of the date of such increase or decrease. No adjustment pursuant to this Section 8(B) shall be made if such adjustment would result in an increase of the Conversion Price then in effect.

    

    

    
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    (iv) Calculation of Consideration Received. If any Option and/or Convertible Security is issued in connection with the issuance or sale or deemed issuance or sale of any
      other securities of the Company (as determined by the Holder, the “Primary Security”, and such Option and/or Convertible Security, the “Secondary Securities”), together comprising one integrated transaction, the consideration per share
      of Common Stock with respect to such Primary Security shall be deemed to be equal to the difference of (x) the lowest price per share for which one share of Common Stock was issued in such integrated transaction (or was deemed to be issued pursuant
      to Section 8(B)(a)(i) or 9(B)(a)(ii) above, as applicable) solely with respect to such Primary Security, minus (y) with respect to such Secondary Securities, the fair market value of such Secondary Securities as agreed to by the Company and Holder
      and absent such agreement by an independent, reputable appraiser jointly selected by the Company and the Holder. The determination of such appraiser shall be final and binding upon all parties absent manifest error and the fees and expenses of such
      appraiser shall be borne by the Company.

    

    

    (v) Other Adjustment.  Upon any issuances of Warrants in connection with such issuances, sales or agreement in writing to issue Common Stock or Common Stock Equivalents by
      the Company, Investor will have the right to receive a proportionate amount of such Warrants, cash or Shares, at Investor’s sole election, valued using the Black Scholes formula. The Company shall provide Investor with written notice of any such
      proposed issuance or with any Warrant sale under this section.”

    

    

    (C) Calculations. All calculations under this Section 8(b) shall be made to the nearest cent or the nearest 1/100th of a share, as the case may be. For purposes of this
      Section 8(b) the number of shares of Common Stock deemed to be issued and outstanding as of a given date shall be the sum of the number of shares of Common Stock (excluding any treasury shares of Company) issued and outstanding.

    

    

    
      (D) Notice to the Holder.

    

    

    

    (i) Adjustment to Conversion Price. Whenever the Conversion Price is adjusted pursuant to any provision of this Section 8(D), Company shall provide to each Holder a notice
      setting forth the Conversion Price after such adjustment and setting forth a brief statement of the facts requiring such adjustment within two business days of such event.

    

    

    (ii). Notice to Allow Conversion by Holder. If (A) Company shall declare a dividend (or any other distribution in whatever form) on the Common Stock, (B) Company shall
      declare a special nonrecurring cash dividend on or a redemption of the Common Stock, (C) Company shall authorize the granting to all holders of the Common Stock of rights or warrants to subscribe for or purchase any shares of capital stock of any
      class or of any rights, (D) the approval of any stockholders of Company shall be required in connection with any reclassification of the Common Stock, any consolidation or merger to which Company is a party, any sale or transfer of all or
      substantially all of the assets of Company, or any compulsory share exchange whereby the Common Stock is converted into other securities, cash or property or (E) Company shall authorize the voluntary or involuntary dissolution, liquidation or winding
      up of the affairs of Borrower, then, in each case, Company shall cause to be filed at each office or agency maintained for the purpose of conversion of this Note, and shall cause to be delivered to the Holder at its last address as it shall appear
      upon the Note Register, at least twenty (20) calendar days prior to the applicable record or effective date hereinafter specified, a notice stating (x) the date on which a record is to be taken for the purpose of such dividend, distribution,
      redemption, rights or warrants, or if a record is not to be taken, the date as of which the holders of the Common Stock of record to be entitled to such dividend, distributions, redemption, rights or warrants are to be determined or (y) the date on
      which such reclassification, consolidation, merger, sale, transfer or share exchange is expected to become effective or close, and the date as of which it is expected that holders of the Common Stock of record shall be entitled to exchange their
      shares of the Common Stock for securities, cash or other property deliverable upon such reclassification, consolidation, merger, sale, transfer or share exchange, provided that the failure to deliver such notice or any defect therein or in the
      delivery thereof shall not affect the validity of the corporate action required to be specified in such notice. To the extent that any notice provided hereunder constitutes, or contains, material, non-public information regarding Company or any of
      the Subsidiaries, Company shall simultaneously file such notice with the Commission pursuant to a Current Report on Form 6-K. The Holder shall remain entitled to convert this Note during the 20-day period commencing on the date of such notice through
      the effective date of the event triggering such notice except as may otherwise be expressly set forth herein.

     

    

    
      12

      
        


    

    (E) Voluntary Adjustment by Company. The Company may at any time during the term of this Note, with the prior written consent of the Holder, reduce the then current
      Conversion Price to any amount and for any period of time deemed appropriate by the Board of Directors of the Company.

    

    

    (9) NONCIRCUMVENTION. The Company hereby covenants and agrees that the Company will not, by amendment of its Certificate of Incorporation, Bylaws or through any reorganization, transfer of
      assets, consolidation, merger, scheme of arrangement, dissolution, issue or sale of securities, or any other voluntary action, avoid or seek to avoid the observance or performance of any of the terms of this Note, and will at all times in good faith
      carry out all of the provisions of this Note and take all action as may be required to protect the rights of the Holder of this Note.

    

    

    (10) REDEMPTIONS. The Company shall deliver the applicable Redemption Price or Optional Redemption Price to the Holder, in the case of an Event of Default Redemption within three (3) Business
      Days of the Holder’s receipt of the applicable redemption notice provided to the Holder in accordance with Section 3(c)(iii), and in the case of Optional Redemption, on or prior to the Optional Redemption Date. The Company shall pay the applicable
      Redemption Price or Optional Redemption Price to the Holder in cash by wire transfer of immediately available funds pursuant to wire instructions provided by the holder in writing to the Company on the applicable due date. In the event of a
      redemption of less than all of the Conversion Amount of this Note, the Company shall promptly cause to be issued and delivered to the Holder a new Note (in accordance with Section 14(d)) representing the outstanding Principal which has not been
      redeemed and any accrued Interest on such Principal which shall be calculated as if no Redemption Notice has been delivered. In the event that the Company does not pay the applicable Redemption Price to the Holder within the time period required, at
      any time thereafter and until the Company pays such unpaid Redemption Price in full, the Holder shall have the option, in lieu of redemption, to require the Company to promptly return to the Holder all or any portion of this Note representing the
      Conversion Amount that was submitted for redemption and for which the applicable Redemption Price has not been paid. Upon the Company's receipt of such notice, (x) the applicable Redemption Notice shall be null and void with respect to such
      Conversion Amount, (y) the Company shall immediately return this Note, or issue a new Note (in accordance with Section 14(d)) to the Holder representing such Conversion Amount to be redeemed and (z) the Conversion Price of this Note or such new Notes
      shall be adjusted to the lesser of (A) the Conversion Price as in effect on the date on which the applicable Redemption Notice is voided and (B) the lowest Closing Bid Price of the Common Stock during the period beginning on and including the date on
      which the applicable Redemption Notice is delivered to the Company and ending on and including the date on which the applicable Redemption Notice is voided; provided, however, that in no event shall the Conversion Price be a price less than the
      Market Price.

    

    

    
      (11) VOTING RIGHTS. The Holder shall have no voting rights as the holder of this Note, except as required by law and as expressly provided in this Note.

    

    

    

    
      13

      
        


    

    

    (12) COVENANTS. 

    

    

    (a) Incurrence of Indebtedness. So long as this Note is outstanding, the Company shall not, and the Company shall not permit any of its Subsidiaries to, directly or indirectly, incur or
      guarantee, assume or suffer to exist any Indebtedness, other than Permitted Indebtedness.

    

    

    (b) Existence of Liens. So long as this Note is outstanding, the Company shall not, and the Company shall not permit any of its Subsidiaries to, directly or indirectly, allow or suffer to
      exist any Liens other than Permitted Liens.

    

    

    (c) Change in Nature of Business. The Company shall not make, or permit any of its Subsidiaries to make, any change in the nature of its business as described in the Company's most recent
      Annual Report filed on Form 20-F with the SEC. The Company shall not modify its corporate structure or purpose.

    

    

    (d) Reserved..

    

    

    (e) Preservation of Existence, Etc. The Company shall maintain and preserve, and cause each of its Subsidiaries to maintain and preserve, its existence, rights and privileges, and become or
      remain, and cause each of its Subsidiaries to become or remain, duly qualified and in good standing in each jurisdiction in which the character of the properties owned or leased by it or in which the transaction of its business makes such
      qualification necessary.

    

    

    (f) Maintenance of Properties, Etc. The Company shall maintain and preserve, and cause each of its Subsidiaries to maintain and preserve, all of its properties which are necessary or useful
      in the proper conduct of its business in good working order and condition, ordinary wear and tear excepted, and comply, and cause each of its Subsidiaries to comply, at all times with the provisions of all leases to which it is a party as lessee or
      under which it occupies property, so as to prevent any loss or forfeiture thereof or thereunder.

    

    

    (g) Maintenance of Insurance. The Company shall maintain, and cause each of its Subsidiaries to maintain insurance with responsible and reputable insurance companies or associations
      (including, without limitation, comprehensive general liability, hazard, rent and business interruption insurance) with respect to its properties (including all real properties leased or owned by it) and business, in such amounts and covering such
      risks as is required by any governmental authority having jurisdiction with respect thereto or as is carried generally in accordance with sound business practice by companies in similar businesses similarly situated.

    

    

    (h) Transactions with Affiliates. The Company shall not, nor shall it permit any of its Subsidiaries to, enter into, renew, extend or be a party to, any transaction or series of related
      transactions (including, without limitation, the purchase, sale, lease, transfer or exchange of property or assets of any kind or the rendering of services of any kind) with any Affiliate, except in the ordinary course of business in a manner and to
      an extent consistent with past practice and necessary or desirable for the prudent operation of its business, for fair consideration and on terms no less favorable to it or its Subsidiaries than would be obtainable in a comparable arm's length
      transaction with a Person that is not an Affiliate thereof.

     

    

    
      14

      
        


    

    (i) Corporate Changes. The Company shall not change its corporate name, legal form or jurisdiction of formation without twenty (20) days’ prior written notice to Holder. Company shall not
      enter into or be party to a Fundamental Transaction unless in accordance with Section 6 hereof. Company shall not relocate its chief executive office or its principal place of business unless it has provided prior written notice to Holder. For the
      avoidance of doubt, the Company shall have been deemed to have provided prior written notice to Holder of its proposed redomicile to the State of Delaware and the potential relocation of its chief executive office and its principal place of business
      to any of Suwanee, Georgia, Atlanta, Georgia, Eden Prairie, Minnesota, or Boston, Massachusetts.

    

    

    (j) Reserved.

    

    

    (k) Charter Amendments.  The Company shall not amend its charter documents, including, without limitation, its certificate of incorporation and bylaws, in any manner that materially and
      adversely affects any rights of the Holder.

    

    

    (l) Repurchase. The Company shall not repay, repurchase or offer to repay, repurchase or otherwise acquire more than a de minimis number of shares of its Common Stock or common
      stock equivalents other than as to the Conversion Shares as permitted or required under the Transaction Documents.

    

    

    (m) Redemption. The Company shall not redeem, defease, repurchase, repay or make any payments in respect of, by the payment of cash or cash equivalents (in whole or in part, whether by way of
      open market purchases, tender offers, private transactions or otherwise), all or any portion of any Indebtedness (other than the Note if on a pro-rata basis), whether by way of payment in respect of principal of (or premium, if any) or interest on,
      such Indebtedness, the foregoing restriction shall also apply to Permitted Indebtedness from and after the occurrence of an Event of Default.

    

    

    (n) Declaration. The Company shall not declare or make any dividend or other distribution of its assets or rights to acquire its assets to holders of shares of Common Stock, by way of return
      of capital or otherwise including, without limitation, any distribution of cash, stock or other securities, property or options by way of a dividend, spin off, reclassification, corporate rearrangement, scheme of arrangement or other similar
      transaction.

    

    

    (13) TRANSFER. This Note and any shares of Common Stock issued upon conversion of this Note may be offered, sold, assigned or transferred according to the Purchase Agreement.

    

    

    (14) REISSUANCE OF THIS NOTE.

    

    

    (a) Transfer. If this Note is to be transferred, the Holder shall instruct the Company who the new Holder will be and this Note will be automatically cancelled.   The Company will issue and
      deliver the new Note within two (2) days of such notice.

    

    

    
      
        (b) Lost, Stolen or Mutilated Note. Upon
            receipt by the Company of evidence reasonably satisfactory to the Company of the loss, theft, destruction or mutilation of this Note, and, in the case of loss, theft or destruction, of any indemnification undertaking by the Holder to the
            Company in customary form and, in the case of mutilation, upon surrender and cancellation of this Note, the Company shall execute and deliver to the Holder a new Note (in accordance with Section 14(d)) representing the then outstanding
            Principal amount of the Note.

      

    

    

    

    
      (c) Note Exchangeable for Different Denominations. This Note is exchangeable, upon the surrender hereof by the Holder at the principal office of the Company, for a new Note or Notes (in
        accordance with Section 14(d)) representing in the aggregate the outstanding Principal of this Note, and each such new Note will represent such portion of such outstanding Principal as is designated by the Holder at the time of such surrender.

    

    

    

    
      15

      
        


    

    (d) Issuance of New Notes. Whenever the Company is required to issue a new Note pursuant to the terms of this Note, such new Note (i) shall be of like tenor with this Note, (ii) shall
      represent, as indicated on the face of such new Note, the Principal remaining outstanding (or in the case of a new Note being issued pursuant to Section 14(a) or Section 14(c), the Principal designated by the Holder which, when added to the principal
      represented by the other new Notes issued in connection with such issuance, does not exceed the Principal remaining outstanding under this Note immediately prior to such issuance of new Notes), (iii) shall have an issuance date, as indicated on the
      face of such new Note, which is the same as the Issuance Date of this Note, (iv) shall have the same rights and conditions as this Note, and (v) shall represent accrued and unpaid Interest. on the Principal and Interest of this Note, from the
      Issuance Date.

    

    

    (15) REMEDIES, CHARACTERIZATIONS, OTHER OBLIGATIONS, BREACHES AND INJUNCTIVE RELIEF. The remedies provided in this Note shall be cumulative and in addition to all other remedies available
      under this Note and any of the other Transaction Documents, at law or in equity (including a decree of specific performance and/or other injunctive relief), and nothing herein shall limit the Holder's right to pursue actual and consequential damages
      for any failure by the Company to comply with the terms of this Note. Amounts set forth or provided for herein with respect to payments, conversion, redemption and the like (and the computation thereof) shall be the amounts to be received by the
      Holder and shall not, except as expressly provided herein, be subject to any other obligation of the Company (or the performance thereof). The Company acknowledges that a breach by it of its obligations hereunder will cause irreparable harm to the
      Holder and that the remedy at law for any such breach may be inadequate. The Company therefore agrees that, in the event of any such breach or threatened breach, the Holder shall be entitled, in addition to all other available remedies, to an
      injunction restraining any breach, without the necessity of showing economic loss and without any bond or other security being required.

    

    

    (16) PAYMENT OF COLLECTION, ENFORCEMENT AND OTHER COSTS. If (a) this Note is placed in the hands of an attorney for collection or enforcement or is collected or enforced through any legal
      proceeding or the Holder otherwise takes action to collect amounts due under this Note or to enforce the provisions of this Note or (b) there occurs any bankruptcy, reorganization, receivership of the Company or other proceedings affecting Company
      creditors' rights and involving a claim under this Note, then the Company shall pay the reasonable and documented out-of-pocket costs and expenses incurred by the Holder for such collection, enforcement or action or in connection with such
      bankruptcy, reorganization, receivership or other proceeding, including, but not limited to, attorneys' fees and disbursements.

    

    

    (17) CONSTRUCTION; HEADINGS. This Note shall be deemed to be jointly drafted by the Company and the Holder and shall not be construed against any person as the drafter hereof. The headings of
      this Note are for convenience of reference and shall not form part of, or affect the interpretation of, this Note.

    

    

    (18) FAILURE OR INDULGENCE NOT WAIVER. No failure or delay on the part of the Holder in the exercise of any power, right or privilege hereunder shall operate as a waiver thereof, nor shall
      any single or partial exercise of any such power, right or privilege preclude other or further exercise thereof or of any other right, power or privilege.

    

    

    
      (19) DISPUTE RESOLUTION. In the case of a dispute as to the determination of the arithmetic calculation of the Conversion Rate, the Conversion Price or any Redemption Price, the Company
        shall submit the disputed determinations or arithmetic calculations via facsimile or electronic mail within one (1) Business Day of receipt, or deemed receipt, of the Conversion Notice or Redemption Notice or other event giving rise to such
        dispute, as the case may be, to the Holder. If the Holder and the Company are unable to agree upon such determination or calculation within two (2) Business Days of such disputed determination or arithmetic calculation being submitted to the
        Holder, then the Company shall, within two (2) Business Days submit via facsimile or electronic mail the disputed arithmetic calculation of the Conversion Rate, Conversion Price or any Redemption Price to an independent, outside accountant,
        selected by the Holder and approved by the Company, such approval not to be unreasonably withheld, conditioned or delayed. The Company, at the Company's expense, shall cause the accountant to perform the determinations or calculations and notify
        the Company and the Holder of the results no later than five (5) Business Days from the time it receives the disputed determinations or calculations. Such accountant's determination or calculation shall be binding upon all parties absent
        demonstrable error.

    

    

    

    
      16

      
        


    

    (20) NOTICES; PAYMENTS.

    

    

    (a) Notices. All notices, demands, requests, consents, approvals, and other communications required or permitted hereunder shall be in writing and, unless otherwise specified herein, shall be (i) personally
      served, (ii) deposited in the mail, registered or certified, return receipt requested, postage prepaid, (iii) delivered by reputable air courier service with charges prepaid, or (iv) transmitted by hand delivery, telegram, facsimile, or electronic
      mail, addressed as set forth below or to such other address as such party shall have specified most recently by written notice. Any notice or other communication required or permitted to be given hereunder shall be deemed effective (a) upon hand
      delivery or delivery by facsimile, with accurate confirmation generated by the transmitting facsimile machine, at the address or number designated below (if delivered on a business day during normal business hours where such notice is to be
      received), or the first business day following such delivery (if delivered other than on a business day during normal business hours where such notice is to be received), or (b) upon receipt, when sent by electronic mail (provided confirmation of
      transmission is electronically generated and keep on file by the sending party), or (c) on the second business day following the date of mailing by express courier service, fully prepaid, addressed to such address, or upon actual receipt of such
      mailing, whichever shall first occur. The addresses for such communications shall be: (i) if to the Company, to: SANUWAVE Health, Inc., 3360 Martin Farm Road, Suite 100, Suwanee, GA 30024, Attn: Kevin Richardson, Email: kevin.richardson@sanuwave.com,
      and (ii) if to the Holder, to: the address and fax number indicated the Purchase Agreement. Without limiting the generality of the foregoing, the Company shall give written notice to the Holder (i) immediately upon any adjustment of the Conversion
      Price, setting forth in reasonable detail, and certifying, the calculation of such adjustment and (ii) at least twenty (20) days prior to the date on which the Company closes its books or takes a record (A) with respect to any dividend or
      distribution upon the Common Stock, (B) with respect to any pro rata subscription offer to holders of Common Stock or (C) for determining rights to vote with respect to any Fundamental Transaction, dissolution or liquidation, provided in each case
      that such information shall be made known to the public prior to or in conjunction with such notice being provided to the Holder. 

    

    

    
      
        (b) Payments. Whenever any payment of cash
            is to be made by the Company to any Person pursuant to this Note, such payment shall be made in lawful money of the United States of America by a check drawn on the account of the Company and sent via overnight courier service to such Person at
            such address as previously provided to the Company in writing; provided, that the Holder may elect to receive a payment of cash via wire transfer of immediately available funds by providing the Company with prior written notice setting
            out such request and the Holder's wire transfer instructions. Whenever any amount expressed to be due by the terms of this Note is due on any day, which is not a Business Day, the same shall instead be due on the next succeeding day, which is a
            Business Day.

      

    

    

    

    
      (21) CANCELLATION. After all Principal, accrued Interest and other amounts at any time owed on this Note have been paid in full, this Note shall automatically be deemed canceled, shall be
        surrendered to the Company for cancellation and shall not be reissued.

      

      

      (22) WAIVER OF NOTICE. To the extent permitted by law, the Company hereby waives demand, notice, protest and all other demands and notices in connection with the delivery, acceptance,
        performance, default or enforcement of this Note.

    

    

    

    
      17

      
        


    

    (23) GOVERNING LAW; JURISDICTION; JURY TRIAL. All questions concerning the construction, validity, enforcement and interpretation of this Note shall be governed by and construed and enforced
      in accordance with the internal laws of the State of New York, without regard to the principles of conflicts of law thereof. The Company agrees that all legal proceedings concerning the interpretations, enforcement and defense of the transactions
      contemplated by this Note (whether brought against the Company, the Holder or their respective affiliates, directors, officers, shareholders, employees or agents) shall be commenced exclusively in the state and federal courts sitting in the City of
      New York, County of New York. The Company hereby irrevocably submits to the exclusive jurisdiction of the state and federal courts sitting in the City of New York, Borough of Manhattan for the adjudication of any dispute hereunder or in connection
      herewith or with any transaction contemplated hereby or discussed herein, and hereby irrevocably waives, and agrees not to assert in any suit, action or proceeding, any claim that it is not personally subject to the jurisdiction of any such court,
      that such suit, action or proceeding is improper or is an inconvenient venue for such proceeding. The Company hereby irrevocably waives personal service of process and consents to process being served in any such suit, action or proceeding by mailing
      a copy thereof via registered or certified mail or overnight delivery (with evidence of delivery) to it at the address in effect for notices to it under the Purchase Agreement and agrees that such service shall constitute good and sufficient service
      of process and notice thereof. Nothing contained herein shall be deemed to limit in any way any right to serve process in any other manner permitted by law. If the Company or a Holder shall commence an action or proceeding to enforce any provisions
      of the Note, then the prevailing party in such action or proceeding shall be reimbursed by the other party for its reasonable and documented out-of-pocket attorneys’ fees and other reasonable and documented out-of-pocket costs and expenses incurred
      with the investigation, preparation and prosecution of such action or proceeding. IN ANY ACTION, SUIT, OR PROCEEDING IN ANY JURISDICTION BROUGHT BY ANY PARTY AGAINST ANY OTHER PARTY, THE COMPANY KNOWINGLY AND
        INTENTIONALLY, TO THE GREATEST EXTENT PERMITTED BY APPLICABLE LAW, HEREBY ABSOLUTELY, UNCONDITIONALLY, IRREVOCABLY AND EXPRESSLY WAIVES FOREVER TRIAL BY JURY.

    

    

    (24) SEVERABILITY. If any provision of this Note is prohibited by law or otherwise determined to be invalid or unenforceable by a court of competent jurisdiction, the provision that would
      otherwise be prohibited, invalid or unenforceable shall be deemed amended to apply to the broadest extent that it would be valid and enforceable, and the invalidity or unenforceability of such provision shall not affect the validity of the remaining
      provisions of this Note so long as this Note as so modified continues to express, without material change, the original intentions of the parties as to the subject matter hereof and the prohibited nature, invalidity or unenforceability of the
      provision(s) in question does not substantially impair the respective expectations or reciprocal obligations of the parties or the practical realization of the benefits that would otherwise be conferred upon the parties. The parties will endeavor in
      good faith negotiations to replace the prohibited, invalid or unenforceable provision(s) with a valid provision(s), the effect of which comes as close as possible to that of the prohibited, invalid or unenforceable provision(s).

    

    

    
      (25) DISCLOSURE. Upon receipt or delivery by the Company of any notice in accordance with the terms of this Note, unless the Company has in good faith determined that the matters relating
        to such notice do not constitute material, nonpublic information relating to the Company or its Subsidiaries, the Company shall within one (1) Business Day after any such receipt or delivery publicly disclose such material, nonpublic information on
        a Current Report on Form 6-K or otherwise. In the event that the Company believes that a notice contains material, nonpublic information relating to the Company or its Subsidiaries, the Company so shall indicate to such Holder contemporaneously
        with delivery of such notice, and in the absence of any such indication, the Holder shall be allowed to presume that all matters relating to such notice do not constitute material, nonpublic information relating to the Company or its Subsidiaries.

    

    

    

    
      18

      
        


    

    (26) CERTAIN DEFINITIONS. For purposes of this Note, the following terms shall have the following meanings:

    

    

    (a) "Affiliate" means, with respect to any Person, any other Person that directly or indirectly controls, is controlled by, or is under common control with,
      such Person, it being understood for purposes of this definition that "control" of a Person means the power directly or indirectly either to vote 10% or more of the stock having ordinary voting power for the election of directors of such Person or
      direct or cause the direction of the management and policies of such Person whether by contract or otherwise.

    

    

    (b) "Attribution Parties" means, collectively, the following Persons and entities: (i) any investment vehicle, including, any funds, feeder funds or managed
      accounts, currently, or from time to time after the Issuance Date, directly or indirectly managed or advised by the Holder's investment manager or any of its Affiliates or principals, (ii) any direct or indirect Affiliates of the Holder or any of the
      foregoing, (iii) any Person acting or who could be deemed to be acting as a Group together with the Holder or any of the foregoing and (iv) any other Persons whose beneficial ownership of the Company's Common Stock would or could be aggregated with
      the Holder's and the other Attribution Parties for purposes of Section 13(d) of the Exchange Act. For clarity, the purpose of the foregoing is to subject collectively the Holder and all other Attribution Parties to the Maximum Percentage.

    

    

    (c) "Bloomberg" means Bloomberg Financial Markets.

    

    

    (d) "Closing Date" shall have the meaning ascribed to such term in the Purchase Agreement.

    

    

    (e) "Closing Bid Price" and "Closing Sale Price" means, for any security as of any date, the last closing bid price and
      last closing trade price, respectively, for such security on the Principal Market, as reported by Bloomberg, or, if the Principal Market begins to operate on an extended hours basis and does not designate the closing bid price or the closing trade
      price, as the case may be, then the last bid price or last trade price, respectively, of such security prior to 4:00 p.m., New York Time, as reported by Bloomberg, or, if the Principal Market is not the principal securities exchange or trading market
      for such security, the last closing bid price or last trade price, respectively, of such security on the principal securities exchange or trading market where such security is listed or quoted for trading as reported by Bloomberg, or if the foregoing
      do not apply, the last closing bid price or last trade price, respectively, of such security in the over-the-counter market on the electronic bulletin board for such security as reported by Bloomberg, or, if no closing bid price or last trade price,
      respectively, is reported for such security by Bloomberg, the average of the bid prices, or the ask prices, respectively, of any market makers for such security as reported in the OTC Link or "pink sheets" by OTC Markets Group Inc. (formerly Pink OTC
      Markets Inc.). If the Closing Bid Price or the Closing Sale Price cannot be calculated for a security on a particular date on any of the foregoing bases, the Closing Bid Price or the Closing Sale Price, as the case may be, of such security on such
      date shall be the fair market value as mutually determined by the Company and the Holder. If the Company and the Holder are unable to agree upon the fair market value of such security, then such dispute shall be resolved pursuant to Section 19. All
      such determinations to be appropriately adjusted for any stock dividend, stock split, stock combination, reclassification or similar transaction during the applicable calculation period.

     

    

    
      (f) "Common Stock" the common stock of the Company, par value $0.001 per share, and any other class of securities into which such securities may hereafter be reclassified or
        changed.

      

      

      (g) "Convertible Securities" means any stock or securities (other than Options) directly or indirectly convertible into or exercisable or exchangeable for shares of Common Stock.

    

     

    

    
      19

      
        


    

    (h) "Default Interest Rate" means 15% per annum.

    

    

    (i) “Disbursement Maturity Date” means the date that is twelve (12) months from the date hereof.

    

    

    (j)  "Equity Interests" means (a) all shares of capital stock (whether denominated as common capital stock or preferred capital stock), equity interests,
      beneficial, partnership or membership interests, joint venture interests, participations or other ownership or profit interests in or equivalents (regardless of how designated) of or in a Person (other than an individual), whether voting or
      non-voting and (b) all securities convertible into or exchangeable for any of the foregoing and all warrants, options or other rights to purchase, subscribe for or otherwise acquire any of the foregoing, whether or not presently convertible,
      exchangeable or exercisable.

    

    

    (k) "Exchange Act" means the Securities Exchange Act of 1934, as amended, and the rules and regulations promulgated thereunder.

    

    

    (l) "Fundamental Transaction" means (A) that the Company shall, directly or indirectly, including through Subsidiaries, Affiliates or otherwise, in one or more
      related transactions, (i) consolidate or merge with or into (whether or not the Company is the surviving corporation) another Subject Entity, or (ii) sell, assign, transfer, convey or otherwise dispose of in excess of 30% of the properties or assets
      of the Company or any of its "significant subsidiaries" (as defined in Rule 1-02 of Regulation S-X) to one or more Subject Entities, or (iii) make, or allow one or more Subject Entities to make, or allow the Company to be subject to or have its
      Common Stock be subject to or party to one or more Subject Entities making, a purchase, tender or exchange offer that is accepted by the holders of at least either (x) 50% of the outstanding shares of Common Stock, (y) 50% of the outstanding shares
      of Common Stock calculated as if any shares of Common Stock held by all Subject Entities making or party to, or Affiliated with any Subject Entities making or party to, such purchase, tender or exchange offer were not outstanding; or (z) such number
      of shares of Common Stock such that all Subject Entities making or party to, or Affiliated with any Subject Entity making or party to, such purchase, tender or exchange offer, become collectively the beneficial owners (as defined in Rule 13d-3 under
      the Exchange Act) of at least 50% of the outstanding shares of Common Stock, or (iv) consummate a stock purchase agreement or other business combination (including, without limitation, a reorganization, recapitalization, spin-off or scheme of
      arrangement) with one or more Subject Entities whereby such Subject Entities, individually or in the aggregate, acquire, either (x) at least 50% of the outstanding shares of Common Stock, (y) at least 50% of the outstanding shares of Common Stock
      calculated as if any shares of Common Stock held by all the Subject Entities making or party to, or Affiliated with any Subject Entity making or party to, such stock purchase agreement or other business combination were not outstanding; or (z) such
      number of shares of Common Stock such that the Subject Entities become collectively the beneficial owners (as defined in Rule 13d-3 under the Exchange Act) of at least 50% of the outstanding shares of Common Stock, or (v) reorganize, recapitalize or
      reclassify its Common Stock, (B) that the Company shall, directly or indirectly, including through Subsidiaries, Affiliates or otherwise, in one or more related transactions allow any Subject Entity individually or the Subject Entities in the
      aggregate to be or become the "beneficial owner" (as defined in Rule 13d-3 under the Exchange Act), directly or indirectly, whether through acquisition, purchase, assignment, conveyance, tender, tender offer, exchange, reduction in outstanding shares
      of Common Stock, merger, consolidation, business combination, spin-off, scheme of arrangement, reorganization, recapitalization or reclassification or otherwise in any manner whatsoever, of either (x) at least 50% of the aggregate ordinary voting
      power represented by issued and outstanding Common Stock, (y) at least 50% of the aggregate ordinary voting power represented by issued and outstanding Common Stock not held by all such Subject Entities as of the date hereof calculated as if any
      shares of Common Stock held by all such Subject Entities were not outstanding, or (z) a percentage of the aggregate ordinary voting power represented by issued and outstanding shares of Common Stock or other equity securities of the Company
      sufficient to allow such Subject Entities to effect a statutory short form merger or other transaction requiring other stockholders of the Company to surrender their shares of Common Stock without approval of the stockholders of the Company or (C)
      directly or indirectly, including through Subsidiaries, Affiliates or otherwise, in one or more related transactions, the issuance of or the entering into any other instrument or transaction structured in a manner to circumvent, or that circumvents,
      the intent of this definition in which case this definition shall be construed and implemented in a manner otherwise than in strict conformity with the terms of this definition to the extent necessary to correct this definition or any portion of this
      definition which may be defective or inconsistent with the intended treatment of such instrument or transaction.

     

    

    
      20

      
        


    

    (m) "GAAP" means United States generally accepted accounting principles, consistently applied.

    

    

    (n) "Group" means a "group" as that term is used in Section 13(d) of the Exchange Act and as defined in Rule 13d-5 thereunder.

    

    

    (o) "Holiday" means a day other than a Business Day or on which trading does not take place on the Principal Market.

    

    

    (p) "Interest Rate" means 5.0% per annum.

    

    

    (q) “Market Price” shall mean the lowest Closing Bid Price on the Closing Date.

    

    

    (r) “North Haven Note Purchase Agreement” means that certain Note and Warrant Purchase and Security Agreement, dated as of August 6, 2020, by and among NH
      Expansion Credit Fund Holdings LP, as agent, the holders from time to time party thereto, and the Company.

    

    

    (s) "Options" means any rights, warrants or options to subscribe for or purchase shares of Common Stock or Convertible Securities.

    

    

    (t) "Parent Entity" of a Person means an entity that, directly or indirectly, controls the applicable Person, including such entity whose common capital stock
      or equivalent equity security is quoted or listed on a Trading Market (or, if so elected by the Holder, any other market, exchange or quotation system), or, if there is more than one such Person or such entity, the Person or entity designated by the
      Holder or in the absence of such designation, such Person or such entity with the largest public market capitalization as of the date of consummation of the Fundamental Transaction.

    

    

    (u) "Permitted Indebtedness" means (i) Indebtedness evidenced by this Note; (ii) debt incurred to make acquisitions; (iii) trade payables incurred in the
      ordinary course of business consistent with past practice, (iv) unsecured indebtedness not in excess of $100,000 in the aggregate, (v) the Indebtedness set forth on Schedule 27(v) hereto; (vi)
      Indebtedness secured by Permitted Liens; (vii) Indebtedness with respect to surety bonds and similar obligations not to exceed $100,000, in each case incurred in the ordinary course of business; (viii) Indebtedness incurred as a result of endorsing
      negotiable instruments received in the ordinary course of business; (ix) Indebtedness evidenced by the North Haven Note Purchase Agreement and the Notes (as defined therein) issued in connection therewith; (x) Indebtedness evidenced by the Permitted
      Notes, and (xi) indebtedness relating to a credit facility, revolving credit facility, asset backed loan, factoring arrangement or similar financing; provided that such facility, loan or financing is made on commercially reasonable terms and in any
      case does involve the payment by the Company of interest at a rate in excess of ten percent (20%) per year on amounts advanced to the Company thereunder

     

    

    
      21

      
        


    

    (v) "Permitted Liens" means (i) any Lien for taxes not yet due or delinquent or being contested in good faith by appropriate proceedings for which adequate
      reserves have been established in accordance with GAAP, (ii) any statutory Lien arising in the ordinary course of business by operation of law with respect to a liability that is not yet due or delinquent, (iii) any Lien created by operation of law,
      such as materialmen's liens, mechanics' liens and other similar liens, arising in the ordinary course of business with respect to a liability that is not yet due or delinquent or that are being contested in good faith by appropriate proceedings, (iv)
      Liens (A) upon or in any equipment acquired or held by the Company or any of its Subsidiaries to secure the purchase price of such equipment or Indebtedness incurred solely for the purpose of financing the acquisition or lease of such equipment, or
      (B) existing on such equipment at the time of its acquisition, provided that the Lien is confined solely to the property so acquired and improvements thereon, and the proceeds of such equipment, (v) Liens incurred in connection with the extension,
      renewal or refinancing of the Indebtedness secured by Liens of the type described in clause (iv) above, provided that any extension, renewal or replacement Lien shall be limited to the property encumbered by the existing Lien and the principal amount
      of the Indebtedness being extended, renewed or refinanced does not increase, (vi) leases or subleases and licenses and sublicenses granted to others in the ordinary course of the Company's business, not interfering in any material respect with the
      business of the Company and its Subsidiaries taken as a whole, (vii) Liens in favor of customs and revenue authorities arising as a matter of law to secure payments of custom duties in connection with the importation of goods, (viii) Liens arising
      from judgments, decrees or attachments in circumstances not constituting an Event of Default under Section 4(a)(viii), (ix) liens listed on Schedule 27(v) hereto and (x) Liens to secure repayment of the North Haven Note Purchase Agreement and
      the Notes (as defined therein).

    

    

     (w) “Permitted Notes” means (a) that certain Convertible Promissory Note, dated as of August 6, 2020, by and between
      the Company and Celularity Inc., a Delaware corporation, in the original principal amount of $4,000,000, (b) that certain Convertible Promissory Note, dated as of August 6, 2020, by and between the Company and HealthTronics, Inc., a Georgia
      corporation, in the original principal amount of $1,72,743, (c) that certain Convertible Promissory Note, dated as of August 6, 2020, by and between the Company and A. Michael Stolarski, in the original principal amount of $223,511.26, and (d) the
      certain Convertible Promissory Note dated as of April 21, 2021, as amended by that certain letter agreement, dated by May 14, 2021, by and between the Company and Levinston Resources, LLC, a Delaware limited
      liability company, in the amount of $1,630,434.

    

    

    (x) “Principal Market” means the OTCQB tier of the OTC Markets.

    

    

    (y) "Redemption Dates" means, collectively, the Event of Default Redemption Dates, and the Optional Redemption Dates, each of the foregoing, individually, a
      Redemption Date.

    

    

    (z) "Redemption Notices" means, collectively, the Event of Default Redemption Notices, and the Optional Redemption Notices, each of the foregoing,
      individually, a Redemption Notice.

    

    

    (aa) "Redemption Price" means, 125% of the outstanding principal amount of the Note together with accrued interest thereon, which after an Event of Default
      shall be calculated at the Default Rate.

     

    

    
      (bb) "Related Fund" means, with respect to any Person, a fund or account managed by such Person or an Affiliate of such Person.

      

      

      (cc) “Rule 144” shall have the meaning ascribed to such term in the Purchase Agreement.

      

      

      (dd) "SEC" means the United States Securities and Exchange Commission.

    

     

    

    
      22

      
        


    

    (ee) "Securities Act" means the Securities Act of 1933, as amended, and the rules and regulations promulgated thereunder.

    

    

    (ff) "Subject Entity" means any Person, Persons or Group or any Affiliate or associate of any such Person, Persons or Group.

    

    

    (gg) "Successor Entity" means one or more Person or Persons (or, if so elected by the Holder, the Company or Parent Entity) formed by, resulting from or
      surviving any Fundamental Transaction or one or more Person or Persons (or, if so elected by the Holder, the Company or the Parent Entity) with which such Fundamental Transaction shall have been entered into.

    

    

    (hh) “Trading Market” means any of the following markets or exchanges on which the Common Stock is listed or quoted for trading on the date in question: the
      NYSE American, the Nasdaq Capital Market, the Nasdaq Global Market, the Nasdaq Global Select Market, the New York Stock Exchange, OTCQB or OTCQX (or any successors to any of the foregoing).

    

    

    (ii) “VWAP” means, for any date, the price determined by the first of the following clauses that applies: (a) if the Common Stock is then listed or quoted on a
      Trading Market, the daily volume weighted average price of the Common Stock for such date (or the nearest preceding date) on the Trading Market on which the Common Stock is then listed or quoted as reported by Bloomberg L.P. (based on a Trading Day
      from 9:30 a.m. New York City time to 4:02 p.m. New York City time); (b) if the Common Stock is not then listed or quoted for trading on a Trading Market and if prices for the Common Stock are then reported on the OTC Pink (or a similar organization
      or agency succeeding to its functions of reporting prices), the most recent bid price per share of the Common Stock so reported; or (c) in all other cases, the fair market value of a share of Common Stock as determined by an independent appraiser
      selected in good faith by the Holders of a majority in interest of the Note then outstanding and reasonably acceptable to the Company, the fees and expenses of which shall be paid by the Company.

    

    

    [Signature Page Follows]

    
      23

      
        


    

    IN WITNESS WHEREOF, the Company has caused this Note to be duly executed as of the Issuance Date set out above.

     

    	 	
            SANUWAVE HEALTH, INC.

          
	 	 
	 	
            By:

            

          	 	 
	 	
            Name: Kevin A. Richardson II

          
	 	
            Title: CEO

          


     

    
      24

      
        


    

    

    EXHIBIT I

    SANUWAVE HEALTH, INC.

    CONVERSION NOTICE

      

    

    Reference is made to the Future Advance Convertible Promissory Note (the "Note") issued to [          ], a [          ],  by SANUWAVE Health, Inc., a corporation organized under
      the laws of Israel (the "Company"). In accordance with and pursuant to the Note, the undersigned hereby elects to convert the Conversion Amount (as defined in the Note) of the Note indicated below into common
      stock of the Company, par value $0.001 per share (the "Common Stock") of the Company, as of the date specified below.

    

    

    
      	
              Date of 

              Conversion:

            	 


      

      

      	
              Aggregate Conversion Amount to be

               converted:

            	 


    

    

    

    Please confirm the following information:

     

    

    
      	Conversion Price:	 


      

      

      	
              Number of shares of Common Stock to be 

              issued:

            	 


    

    

    

    Please issue the Common Stock into which the Note is being converted in the following name and to the following address:

    

    

    
      	
              Issue to:

            	 


      

      

      	
              Facsimile Number and Electronic

               

              Mail:

            	 


      

      

      	
              Authorization:

            	 
	 	
              By:

            	 
	 	 	 
	 	 	
              Title:

            	 


      

      

      	
              Dated:

            	 
	 	
              Account Number:

            	 
	 	
              (if electronic book entry transfer)

            


      	 	
              Transaction Code Number:

            	 
	 	
              (if electronic book entry transfer)

            


    

     

    
      25

      
        


    

    SCHEDULE 27(V)

    PERMITTED INDEBTEDNESS AND LIENS

    

    

    Permitted Indebtedness

    

    

    	

          	1.	
            Loan incurred by the Company under 15 U.S.C. 636(a)(36) (as added to the Small Business Act by Section 1102 of the CARES Act) in the original principal amount of Four Hundred Fifty Four Thousand Three Hundred Thirty Five Dollars
              ($454,335), as amended, restated, amended and restated, supplemented or otherwise modified from time to time.

          


    

    

    	

          	2.	
            Indebtedness under that certain Master Equipment Lease, dated as of January 19, 2018 (the “NFS Master Equipment Lease”), by and between NFS Leasing, Inc., a Massachusetts
              corporation, and the Company, as amended, restated, amended and restated, supplemented or otherwise modified from time to time.

          


    

    

    	

          	3.	
            Indebtedness under that certain Factoring Agreement (the “Goodman Factoring Agreement”), by and a Goodman Capital Finance, a division of Independent Bank, SANUWAVE, Inc., a
              Delaware corporation, and the Company, as amended, restated, amended and restated, supplemented or otherwise modified from time to time.

          


    

    

    	

          	4.	
            Indebtedness under (a) that certain Future Advance Convertible Promissory Note, dated as of September 3, 2021, by and between the Company and David S. Nagelberg 2003 Revocable Trust, in the original principal amount of $108,000, (b) that
              certain Future Advance Convertible Promissory Note, dated as of September 3, 2021, by and between the Company and Jeffrey Benton, in the original principal amount of $54,000, (c) that certain Future Advance Convertible Promissory Note, dated
              as of September 3, 2021, by and between the Company and Karl W. Brewer, in the original principal amount of $162,000, (d) that certain Future Advance Convertible Promissory Note, dated as of September 3, 2021, by and between the Company and
              LGH Investments, LLC, in the original principal amount of $108,000, and (d) that certain Future Advance Convertible Promissory Note, dated as of September 3, 2021, by and between the Company and Quick Capital, LLC, in the original principal
              amount of $108,000 (collectively, the “2021 Notes”).

          


    

    

    Permitted Liens

    

    

    	

          	1.	
            Liens securing obligations under the NFS Master Equipment Lease.

          


    	

          	2.	
            Liens securing obligations under the Goodman Factoring Agreement.

          


    	

          	3.	
            Liens securing obligations under the 2021 Notes.

          


     

     

    

    
       26