Y4O-NK55Portable 2-Deck DJ Controller w/ Party Lights, and Stem Control

Rev 1/26/2023 inMusic Brands Inc. Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 11-20-2025 Ref: Attestation Statements Part 2.911(d)(7) Filing FCC ID or Grantee Code: [Y4O-NK55] (““ INMUSIC BRANDS INC””) certifies that, as of the date of the filing of the application, we designate ourselves as the U.S. agent for service of process. Designated U.S. Agent Information: FRN: 0022102461 Name: INMUSIC BRANDS INC. Address: 200 SCENIC VIEW DRIVE, SUITE 201.CUMBERLAND. Rhode Island, United States,02864 Contact Person: Hill Lien Tel.: +866-2-2717-2389 Email: [email protected] Sincerely, [Insert applicant name] [Applicant printed name] Hill Lien [Applicant signature]

inMusic Brands Inc. Declaration on model difference We the undersigned hereby confirm that these models are identical, and all models have the same RF module and antenna, PCB layout, schematics and component. Only the models name are different. Production name Trademark Model no. Portable 2-Deck DJ Controller w/ Party Lights, and Stem Control Numark NK55, PARTY MIX, PARTY MIX III, NKxxxxxxxxxxxx, PARTY MIXxxxxxxxxxxxx, (x can be "0-9", "a- z", "A-Z," blank, "-", "+" or any character, symbol, alphanumeric) Sincerely, Hill Lien Director of Compliance INMUSIC BRANDS INC 200 Scenic View Drive, Cumberland, RI 02864 U.S.A

inMusic Brands Inc. (11.20.2025) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(i) request for (FCC ID:Y4O-NK55) [inMusic Brands Inc.] (“the applicant”) certifies that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. We also certify that, as of the date of the filing of the application, the equipment does not utilize cyber-security or anti-virus software from Kaspersky Lab, Inc, or any of its successors and assignees, which is also on the “covered list”. Sincerely, (Applicant signature) (Applicant printed name)Hill Lien inMusic Brands Inc. (11.20.2025) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(ii) request for (FCC ID:Y4O-NK55) [inMusic Brands Inc.] (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing “covered” equipment. Sincerely, (Applicant signature) (Applicant printed name) Hill Lien

Rev 11/20/07 inMusic Brands Inc. Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: (Y4O-NK55). Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request confidential treatment of information accompanying this application as outlined below: Exhibit Type Block Diagram, Schematics Operational Description, Parts List PCB Layout Tune Up The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Section 0.457 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Pursuant to DA04-1705 June 15, 2004 of the Commission’s public notice, we also request temporary confidential treatment of information accompanying this application as outlined below for a period of 180 days: Exhibit Type User manual internal photo external photo Test setup photo Sincerely, (signature) (printed name)Hill Lien

\\192.168.1.140\Safety-NEW\Brands\Numark\NK54_MixTrack Go\NK55\FCC\POA_Letter.docx inMusic Brands Inc. Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Date: 11-20-2025 SUBJECT: FCC Application for (Y4O-NK55) To Whom It May Concern: We, the undersigned, hereby authorize __Jim Huang____ at _ Sushi TOWE Wireless Testing(Shenzhen)Co.,Ltd.__________________ on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by ___Jim Huang____ on our behalf shall have the same effect as acts of our own. This is to advise that we are in full compliance with the Anti- Drug Abuse Act. We, the applicant, are not subject to a denial of federal benefits pursuant to Section 5301 of the Anti-Drug Act of 1988, 21 USC853a, and no party to the application is subject to a denial of federal benefits pursuant to that section. Regards, (Print Name) Hill Lien

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SushiTOWEWirelessTesting(Shenzhen)Co.,Ltd. ReportNo.:TCEA25030021602 SushiTOWEWirelessTesting(Shenzhen)Co.,Ltd. Email:[email protected] Tel.:+86-755-27212361TOWE-QP-15-F05Rev.1.1 Allrightsreserved.Unlessotherwisespecified,nopartofthisreportmaybereproducedorutilizedinanypart,formorbyanymeans,electronicor mechanical,includingphotocopyingandmicrofilm,withoutpermissioninwritingfromTOWE. TESTREPORT Applicant:inMusicBrandsInc. EUTDescription:Portable2-DeckDJControllerw/PartyLights,andStemControl ModelTested:NK55 ModelCovered:NK55,PARTYMIX,PARTYMIXIII,NKxxxxxxxxxxxx,PARTY MIXxxxxxxxxxxxx,(xcanbe"0-9","a-z","A-Z,"blank,"-","+"orany character,symbol,alphanumeric) Brand:Numark FCCID:Y4O-NK55 Standards:FCC47CFRPart2.1091 DateofReceipt:2025/03/31 DateofIssue:2025/10/17 TOWE.testedtheaboveequipmentinaccordancewiththerequirementssetforthinthe abovestandards.Thetestresultsshowthattheequipmenttestediscapableof demonstratingcompliancewiththerequirementsasdocumentedinthisreport. theresultsdocumentedinthisreportapplyonlytothetestedsample,undertheconditions andmodesofoperationasdescribedherein.Itisthemanufacturer'sresponsibilitytoassure thatadditionalproductionunitsofthemodelaremanufacturedwithidenticalelectricaland mechanicalcomponents.Allsampletestedwereingoodoperatingconditionthroughoutthe entiretestprogram.MeasurementUncertaintiesarepublishedforinformationalpurposes onlyandwerenottakenintoaccountunlessnotedotherwise.withoutwrittenapprovalof TOWE,thetestreportshallnotbereproducedexceptinfull. JimHuang ApprovedBy: CareyChen ReviewedBy: Page 2 / 8 ReportNo.:TCEA25030021602 SushiTOWEWirelessTesting(Shenzhen)Co.,Ltd. Email:[email protected] Tel.:+86-755-27212361TOWE-QP-15-F05Rev.1.1 Allrightsreserved.Unlessotherwisespecified,nopartofthisreportmaybereproducedorutilizedinanypart,formorbyanymeans,electronicor mechanical,includingphotocopyingandmicrofilm,withoutpermissioninwritingfromTOWE. RevisionHistory Rev.IssueDateDescriptionRevisedby 012025/10/17OriginalCareyChen Page 3 / 8 ReportNo.:TCEA25030021602 SushiTOWEWirelessTesting(Shenzhen)Co.,Ltd. Email:[email protected] Tel.:+86-755-27212361TOWE-QP-15-F05Rev.1.1 Allrightsreserved.Unlessotherwisespecified,nopartofthisreportmaybereproducedorutilizedinanypart,formorbyanymeans,electronicor mechanical,includingphotocopyingandmicrofilm,withoutpermissioninwritingfromTOWE. TableofContents 1GeneralDescription........................................................................................................................................................4 1.1LabInformation...............................................................................................................................................4 1.1.1TestingLocation.................................................................................................................4 1.1.2TestFacility/Accreditations...............................................................................................4 1.2ClientInformation..........................................................................................................................................4 1.2.1Applicant.............................................................................................................................4 1.2.2Manufacturer.......................................................................................................................4 1.3ProductInformation......................................................................................................................................5 2MaximumPermissibleRFExposure.......................................................................................................................6 2.1RFExposureLimitIntroduction..............................................................................................................6 2.2Equations...........................................................................................................................................................7 3RFExposureResults.....................................................................................................................................................8 3.1StandaloneExposureCalculations........................................................................................................8 Page 4 / 8 ReportNo.:TCEA25030021602 SushiTOWEWirelessTesting(Shenzhen)Co.,Ltd. Email:[email protected] Tel.:+86-755-27212361TOWE-QP-15-F05Rev.1.1 Allrightsreserved.Unlessotherwisespecified,nopartofthisreportmaybereproducedorutilizedinanypart,formorbyanymeans,electronicor mechanical,includingphotocopyingandmicrofilm,withoutpermissioninwritingfromTOWE. 1GeneralDescription 1.1LabInformation 1.1.1TestingLocation ThesemeasurementstestswereconductedattheSushiTOWEWirelessTesting(Shenzhen)Co.,Ltd.facility locatedatF401andF101,BuildingE,HongweiIndustrialZone,Liuxian3rdRoad,Bao'anDistrict,Shenzhen, China.ThemeasurementfacilityiscompliantwiththetestsiterequirementsspecifiedinANSIC63.4-2014 Tel.:+86-755-27212361 ContactEmail:[email protected] 1.1.2TestFacility/Accreditations A2LA(CertificateNumber:7088.01) ThislaboratoryisaccreditedinaccordancewiththerecognizedInternationalStandardISO/IEC17025:2017 Generalrequirementsforthecompetenceoftestingandcalibrationlaboratories.Thisaccreditation demonstratestechnicalcompetenceforadefinedscopeandtheoperationofalaboratoryqualitymanagement system(refertojointISO-ILAC-IAFCommuniquédatedApril2017). FCCDesignationNo.:CN1353 SushiTOWEWirelessTesting(Shenzhen)Co.,Ltd.hasbeenrecognizedasanaccreditedtestinglaboratory. DesignationNumber:CN1353. ISEDCABidentifier:CN0152 SushiTOWEWirelessTesting(Shenzhen)Co.,Ltd.hasbeenrecognizedbyISEDasanaccreditedtesting laboratory. CABidentifier:CN0152 CompanyNumber:31000 1.2ClientInformation 1.2.1Applicant Applicant:inMusicBrandsInc. Address:200ScenicViewDrive,Cumberland,RI02864U.S.A 1.2.2Manufacturer Manufacturer:inMusicBrandsInc. Address:200ScenicViewDrive,Cumberland,RI02864U.S.A Page…

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S H E N Z H E NF E I M I NT E C H N O L O G YCO., L T D. Professional Antenna Supplier DM51BT 许高富 陈泽雄 2025-9-18 Antenna test report SHENZHEN FEIMIN TECHNOLOGY CO.,LTD. TEL:0755-23035723 Mail:[email protected] URL:www.fmant.cn Antenna Model Tested By Reviewed By Date Project Model Test equipment and test environment SHENZHEN FEIMIN TECHNOLOGY CO.,LTD. TEL:0755-23035723 Mail:[email protected] URL:www.fmant.cn Test equipment        0.4GHz6GHz SHENZHEN FEIMIN TECHNOLOGY CO.,LTD. TEL:0755-23035723 Mail:[email protected] URL:www.fmant.cn Main Test Indicators Passive Indicators Gain Efficiency 3D Radiation Pattern Active Indicators TRP (Total Radiated Power) TIS (Total Isotropic Sensitivity) Probe Microwave Anechoic Chamber freq: - Test equipment Agilent E5071C 300 kHz8.5GHz R&S CMW500 GSM/3G/4G WIFI/ Bluetooth NB-IoT SHENZHEN FEIMIN TECHNOLOGY CO.,LTD. TEL:0755-23035723 Mail:[email protected] URL:www.fmant.cn Vector Network Analyzer Wideband Radio Communication Tester - freq: Passive antenna data SHENZHEN FEIMIN TECHNOLOGY CO.,LTD. TEL:0755-23035723 Mail:[email protected] URL:www.fmant.cn On-board Antenna - Feimin Tuned MatchingOn-board Antenna - Original Matching Antenna SWR SHENZHEN FEIMIN TECHNOLOGY CO.,LTD. TEL:0755-23035723 Mail:[email protected] URL:www.fmant.cn Antenna Return loss On-board Antenna - Original Matching Antenna gain and efficiency SHENZHEN FEIMIN TECHNOLOGY CO.,LTD. TEL:0755-23035723 Mail:[email protected] URL:www.fmant.cn Freq(MHz) Efficiency (％) Gian(dBi) 2400 4.68 -10.36 2410 4.72 -9.94 2420 4.72 -9.84 2430 4.76 -9.66 2440 4.84 -9.20 2450 4.96 -8.63 2460 5.04 -8.37 2470 5.02 -8.41 2480 5.02 -8.40 2490 5.10 -7.89 2500 5.25 -7.03 On-board Antenna - Original Matching 插入图片1插入图片2 插入图片3插入图片4 Antenna Radiation Pattern SHENZHEN FEIMIN TECHNOLOGY CO.,LTD. TEL:0755-23035723 Mail:[email protected] URL:www.fmant.cn On-board Antenna - Original Matching SHENZHEN FEIMIN TECHNOLOGY CO.,LTD. TEL:0755-23035723 Mail:[email protected] URL:www.fmant.cn NC NC ANT IC GNDGND On-board Antenna - Original Matching Antenna Matching Parameters no change Antenna SWR SHENZHEN FEIMIN TECHNOLOGY CO.,LTD. TEL:0755-23035723 Mail:[email protected] URL:www.fmant.cn Antenna Return loss On-board Antenna - Feimin Tuned Matching Antenna gain and efficiency SHENZHEN FEIMIN TECHNOLOGY CO.,LTD. TEL:0755-23035723 Mail:[email protected] URL:www.fmant.cn Freq(MHz) Efficiency (％) Gian(dBi) 2400 10.84 -5.56 2410 11.48 -4.81 2420 12.23 -4.16 2430 13.08 -3.63 2440 13.64 -3.45 2450 13.98 -3.46 2460 14.61 -3.24 2470 13.77 -4.13 2480 12.88 -4.00 2490 12.80 -3.94 2500 11.72 -4.68 On-board Antenna - Feimin Tuned Matching 插入图片1插入图片2 插入图片3插入图片4 Antenna Radiation Pattern SHENZHEN FEIMIN TECHNOLOGY CO.,LTD. TEL:0755-23035723 Mail:[email protected] URL:www.fmant.cn On-board Antenna - Feimin Tuned Matching SHENZHEN FEIMIN TECHNOLOGY CO.,LTD. TEL:0755-23035723 Mail:[email protected] URL:www.fmant.cn 3.9NH 1.6NH 1.2PF ANT IC GNDGND On-board Antenna - Feimin Tuned Matching Antenna Matching Parameters Thanks for your support！ TEL:(86)755-23035723. FAX:0755-23036702 E-mail:[email protected] Room 801, 8th Floor,KeyunndaE-commerce Base,No. 4 ShenghuiRoad, GuxingCommunity,XixiangStreet,Bao‘an,District,Shenzhen

SushiTOWEWirelessTesting(Shenzhen)Co.,Ltd. ReportNo.:TCEA25030021601 SushiTOWEWirelessTesting(Shenzhen)Co.,Ltd. Email:[email protected] Tel.:+86-755-27212361TOWE-QP-15-F05Rev.1.1 Allrightsreserved.Unlessotherwisespecified,nopartofthisreportmaybereproducedorutilizedinanypart,formorbyanymeans,electronicor mechanical,includingphotocopyingandmicrofilm,withoutpermissioninwritingfromTOWE. TESTREPORT Applicant:inMusicBrandsInc. EUTDescription:Portable2-DeckDJControllerw/PartyLights,andStemControl ModelTested:NK55 ModelCovered:NK55,PARTYMIX,PARTYMIXIII,NKxxxxxxxxxxxx,PARTY MIXxxxxxxxxxxxx,(xcanbe"0-9","a-z","A-Z,"blank,"-","+"orany character,symbol,alphanumeric) Brand:Numark FCCID:Y4O-NK55 Standards:FCC47CFRPart15SubpartC DateofReceipt:2025/03/31 DateofTest:2025/08/18to2025/10/17 DateofIssue:2025/10/17 TOWE.testedtheaboveequipmentinaccordancewiththerequirementssetforthinthe abovestandards.Thetestresultsshowthattheequipmenttestediscapableof demonstratingcompliancewiththerequirementsasdocumentedinthisreport. theresultsdocumentedinthisreportapplyonlytothetestedsample,undertheconditions andmodesofoperationasdescribedherein.Itisthemanufacturer'sresponsibilitytoassure thatadditionalproductionunitsofthemodelaremanufacturedwithidenticalelectricaland mechanicalcomponents.Allsampletestedwereingoodoperatingconditionthroughoutthe entiretestprogram.MeasurementUncertaintiesarepublishedforinformationalpurposes onlyandwerenottakenintoaccountunlessnotedotherwise.withoutwrittenapprovalof TOWE,thetestreportshallnotbereproducedexceptinfull. JimHuang ApprovedBy: CareyChen ReviewedBy: Page 2 / 50 ReportNo.:TCEA25030021601 SushiTOWEWirelessTesting(Shenzhen)Co.,Ltd. Email:[email protected] Tel.:+86-755-27212361TOWE-QP-15-F05Rev.1.1 Allrightsreserved.Unlessotherwisespecified,nopartofthisreportmaybereproducedorutilizedinanypart,formorbyanymeans,electronicor mechanical,includingphotocopyingandmicrofilm,withoutpermissioninwritingfromTOWE. RevisionHistory Rev.IssueDateDescriptionRevisedby 012025/10/17OriginalCareyChen Page 3 / 50 ReportNo.:TCEA25030021601 SushiTOWEWirelessTesting(Shenzhen)Co.,Ltd. Email:[email protected] Tel.:+86-755-27212361TOWE-QP-15-F05Rev.1.1 Allrightsreserved.Unlessotherwisespecified,nopartofthisreportmaybereproducedorutilizedinanypart,formorbyanymeans,electronicor mechanical,includingphotocopyingandmicrofilm,withoutpermissioninwritingfromTOWE. SummaryofTestResults ClauseFCCPartTestItemsResult 4.1 §15.203/15.247(b) AntennaRequirementPASS 4.2 §15.207 ACPowerLineConductedEmissionPASS 4.3 §15.247(b)(3) OutputPowerPASS 4.4 §15.247(a)(2) OccupiedBandwidth Reporting purposesonly 4.5 §15.247(e) PowerSpectralDensityPASS 4.6 §15.247(d) BandEdgeforConductedEmissionsPASS 4.7 §15.247(d) SpuriousRFConductedEmissionsPASS 4.8 §15.205 §15.209 RadiatedSpuriousemissionsandBandEdgePASS TestMethod:ANSIC63.10:2020,KDB558074D0115.247MesaGuidancev05r02. Remark:PassisEUTmeetsstandardrequirements. Page 4 / 50 ReportNo.:TCEA25030021601 SushiTOWEWirelessTesting(Shenzhen)Co.,Ltd. Email:[email protected] Tel.:+86-755-27212361TOWE-QP-15-F05Rev.1.1 Allrightsreserved.Unlessotherwisespecified,nopartofthisreportmaybereproducedorutilizedinanypart,formorbyanymeans,electronicor mechanical,includingphotocopyingandmicrofilm,withoutpermissioninwritingfromTOWE. TableofContents 1GeneralDescription...............................................................................................................................5 1.1LabInformation........................................................................................................................5 1.1.1TestingLocation.................................................................................................................5 1.1.2TestFacility/Accreditations...............................................................................................5 1.2ClientInformation....................................................................................................................5 1.2.1Applicant.............................................................................................................................5 1.2.2Manufacturer.......................................................................................................................5 1.3ProductInformation.................................................................................................................6 2TestConfiguration..................................................................................................................................7 2.1TestChannel.............................................................................................................................7 2.2Worst-caseconfigurationandMode.....................................................................................8 2.3SupportUnitusedintest........................................................................................................8 2.4TestEnvironment.....................................................................................................................8 2.5TestRFCable...........................................................................................................................8 2.6Modifications............................................................................................................................8 2.7TestSetupDiagram.................................................................................................................9 2.7.1ConductedConfiguration....................................................................................................9 2.7.2RadiatedConfiguration.....................................................................................................10 3EquipmentandMeasurementUncertainty........................................................................................11 3.1TestEquipmentList....................................................................................................…

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