2BS3B-HP-200WiWU Soundmaster Wireless Headphone

WiWU Soundmaster Wireless Headphone This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation.If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: -- Reorient or relocate the receiving antenna. -- Increase the separation between the equipment and receiver. -- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. -- Consult the dealer or an experienced radio/TV technician for help. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

LocalRepresentativeLetter ForCertificationServiceintheUSA FederalCommunicationsCommission EquipmentAuthorizationDivision,ApplicationProcessingBranch 7435OaklandMillsRoad Columbia,MD21048 Towhomitmayconcern PursuanttoSection2.911(d)(7),oftheCommission’sRules(47C.F.R.)weattestasfollowsfor theproductlistedbelow: FCCIDModelname 2BS3B-HP-200HP-200,HP-201,HP-202,HP-203,HP-204, HP-205,HP-206,HP-207,HP-208,HP-209, HP-210 Weherebyacknowledgeasfollows: i.bothsigneesconfirmthatthepointofcontactacceptsresponsibilitytoactasaUS- AmericanRepresentativeonbehalfoftheapplicant ii.thepointofcontactprovidesthephysicalU.S.addressandemailaslistedbelow iii.bothpartiesmaintaintherequirementsofthisagreementwithoutexpirationdate US-AmericanPointofContactApplicant/ApprovalHolder SignatureSignature CompanyName:LOBOSIOWAINCDongguanWeiwuSupplyChain Co.,Ltd. FRN:00364139610037636768 ContactName:HarleyLiJasonZhu Address:4623BittercreekDrColorado SpringsCO80922US Room401,Building11,No.243, HuaideRoad,HumenTown, DongguanCity,Guangdong Province Phone:+1818818053813829218589 Email:[email protected]@wiwu.com

CoveredEquipmentAttestationLetter ForCertificationServiceintheUSA FederalCommunicationsCommission EquipmentAuthorizationDivision,ApplicationProcessingBranch 7435OaklandMillsRoad Columbia,MD21048 Towhomitmayconcern PursuanttoSection2.911(d)(5)(i)-(ii)oftheCommission’sRules(47C.F.R.)weattestas followsfortheproductlistedbelow: FCCIDModelname 2BS3B-HP-200HP-200,HP-201,HP-202,HP-203,HP-204, HP-205,HP-206,HP-207,HP-208,HP-209, HP-210 We, Applicant CompanyName:DongguanWeiwuSupplyChainCo.,Ltd. Address:Room401,Building11,No.243,Huaide Road,HumenTown,DongguanCity, GuangdongProvince，China Phone:13829218589 certifythattheequipmentforwhichauthorizationissoughtisnot“covered”equipment prohibitedfromreceivinganequipmentauthorizationpursuanttosection2.903oftheFCC rules.Thisincludesthecybersecurityandanti-virussoftwareproducedorprovidedby KasperskyLab,Inc.oranyofistsuccessorsandassignees. Wecertifythat,asofthedateofthefilingoftheapplication,theapplicantisnotidentified ontheCoveredListasanentityproducing“covered”equipment. Ifyouhaveanyquestions,pleasefeelfreetocontactusattheaddressshownbelow. Sincerely, 2025-12-22 SignatureDate PrintedNameofSignee:JasonZhu Company:DongguanWeiwuSupplyChain Co.,Ltd. Phone:13829218589 Email:[email protected] Address:Room401,Building11,No.243, HuaideRoad,HumenTown,DongguanCity, GuangdongProvince Fax:N/A

DongguanWeiwuSupplyChainCo.,Ltd. Room401,Building11,No.243,HuaideRoad,HumenTown,DongguanCity, GuangdongProvince Date:2025-12-22 FCCID:2BS3B-HP-200 ModelNumber:HP-200,HP-201,HP-202,HP-203,HP-204,HP-205,HP-206,HP-207, HP-208,HP-209,HP-210 To:FederalCommunicationCommission AuthorizationandEvaluationDivision7435OaklandMillsRoad Columbia,MD21048 ToWhomItMayConcern, We, DongguanWeiwuSupplyChainCo.,Ltd .herebydeclarethatourproduct(Wireless Doorbell ) ModelNumber: HP-200,HP-201,HP-202,HP-203,HP-204,HP-205,HP-206, HP-207,HP-208,HP-209,HP-210 electricalidentical,theSchematic,PCBlayout,structure andsoftwarearesame,onlythedifferenceisthemodelnameformarketpurpose. Shouldyouhaveanyquestionsorcommentsregardingthismatter,pleasehave mybestattention. Sincerely, (Signed) Name/Title:JasonZhu/CTO Company:DongguanWeiwuSupplyChainCo.,Ltd. Address:Room401,Building11,No.243,HuaideRoad,HumenTown,DongguanCity, GuangdongProvince Phone:13829218589 FaxNumber:N/A E-Mail:[email protected]

ConfidentialityRequestLetter ForCertificationServiceintheUSA FederalCommunicationCommission EquipmentAuthorizationDivision,ApplicationProcessingBranch 7435OaklandMillsRoad Columbia,MD21048 Towhomitmayconcern PursuanttoParagraphs§0.457and0.459oftheCommission’sRules(47C.F.R.)andSection §552(b)(4)oftheFreedomofInformationAct,werequestconfidentialityforthe documentationofthefollowingproducts: FCCIDModelname 2BS3B-HP-200HP-200,HP-201,HP-202,HP-203,HP-204, HP-205,HP-206,HP-207,HP-208,HP-209, HP-210 Fortheproductslistedabove,werequestpermanentconfidentialityforallapplicable exhibitsasthereare:  theOperationalDescription  theBlockDiagram theSchematics Theabovelistedexhibitscontaintradesecretsandproprietaryinformationthatcouldbeof benefittoourcompetitors. Ifyouhaveanyquestions,pleasefeelfreetocontactusattheaddressshownbelow. Sincerely, 2025-12-22 SignatureDate PrintedNameofSignee/Title:JasonZhu/CTO Company:DongguanWeiwuSupplyChainCo.,Ltd. Address:Room401,Building11,No.243,HuaideRoad,Humen Town,DongguanCity,GuangdongProvince Phone:13829218589 Fax:-- Email:[email protected]

ReportNo.:CISRR25112723201 Page 59 of 63 9.EXTERNALANDINTERNALPHOTOS 9.1.ExternalPhotos ReportNo.:CISRR25112723201 Page 60 of 63 ReportNo.:CISRR25112723201 Page 61 of 63

Label Size:15mm*8mm FCCID:2BS3B-HP-200 LabelLocation

ReportNo.:CISRR25112723201 Page 62 of 63 9.2.InternalPhotos ReportNo.:CISRR25112723201 Page 63 of 63 ------Endofthereport----- ANT

ReportNo.: CISRR25112723202 Reporttemplateversion:CISE-TR-001-A0Page:1of5 TESTREPORT RFExposureEvaluation ReportNo.: CISRR25112723202 ProjectNo.: CISR251127232 FCCID:2BS3B-HP-200 Applicant:DongguanWeiwuSupplyChainCo.,Ltd. Address: Room401,Building11,No.243,HuaideRoad,HumenTown,Dongguan City,GuangdongProvince,China Manufacturer: DongguanWeiwuSupplyChainCo.,Ltd. Address: Room401,Building11,No.243,HuaideRoad,HumenTown,Dongguan City,GuangdongProvince,China ProductName: WiWUSoundmasterWirelessHeadphone TradeMark:RICHJOY，WiWU Model/Typereference:HP-200 ListedModel(s): HP-201,HP-202,HP-203,HP-204,HP-205,HP-206,HP-207,HP-208, HP-209,HP-210 Standard:47CFRPart2.1093 Issuedate:December4,2025 Testresult:Complied Reviewedby:MorganTan Approvedby:HansHu Thetestresultsrelateonlytothetestedsamples. ThetestreportshouldnotbereproducedexceptinfullwithoutthewrittenapprovalofShenzhenBangceTesting TechnologyCo.,Ltd. ReportNo.: CISRR25112723202 Reporttemplateversion:CISE-TR-001-A0Page:2of5 1.APPLICABLESTANDARD 47CFRPart2.1093:Radiofrequencyradiationexposureevaluation:portabledevices ANSIC95.1–3999:IEEEStandardforSafetyLevelswithRespecttoHumanExposuretoRadioFrequency ElectromagneticFields,3kHzto300GHz. FCCKDBpublication447498D01GeneralRFExposureGuidancev06:MobileandPortableDevicesRF ExposureProceduresandEquipmentAuthorizationPolicies. 47CFRPart1.1307:Actionsthatmayhaveasignificantenvironmentaleffect,forwhichEnvironmental Assessments(EAs)mustbeprepared. 2.REPORTVERSION VersionNo.IssuedateDescription 00December4,2025Original ReportNo.: CISRR25112723202 Reporttemplateversion:CISE-TR-001-A0Page:3of5 3.RADIOSPECIFICATIONDESCRIPTION Bluetooth Supportedtype:BREDRLE-1Mbps LE-2Mbps Note:PleaserefertoRFreportfordetailedtechnicalspecifications 4.SIMULTANEOUSTRANSMISSIONANALYSIS ThesedevicesuseasingletransmittermoduleandantennaforbothBT,BTcannottransmitsimultaneously. ReportNo.: CISRR25112723202 Reporttemplateversion:CISE-TR-001-A0Page:4of5 5.TESTRESULT 5.1.Standalonetransmission Limit: KDB447498D01v06,Clause4.3.1a) For100MHzto6GHzandtestseparationdistances≤50mm,the1-gand10-g SARtestexclusionthresholdsaredeterminedbythefollowing: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparation distance,mm)]*[√f(GHz)]≤3.0for1-gSAR,and≤7.5for10-gextremitySAR,where f(GHz)istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbeforecalculation31The resultisroundedtoonedecimalplaceforcomparison Thevalues3.0and7.5arereferredtoasnumericthresholdsinstepb)below Thetestexclusionsareapplicableonlywhentheminimumtestseparationdistanceis≤50mm, andfortransmissionfrequenciesbetween100MHzand6GHz.Whentheminimumtest separationdistanceis<5mm,adistanceof5mmaccordingto4.1f)isappliedtodetermine SARtestexclusion. Result: Passed TestData Radiotype Frequency (GHz) Maximum output power #1 (dBm) Antenna gain #2 (dBi) Maximum EIRP #3 (dBm) Maximum tune-up EIRP #4 (dBm) Minimum distance (mm) Evaluated value LimitResult Bluetooth2.4023.032.875.906.005.001.23403.00PASS Note #1:ThisvaluecomesfromtheRFtestreport. #2:Thisvalueisdeclaredbytheapplicant. #3:EIRP=Maximumoutputpower+Antennagain. #4:Thisvalueisdeclaredbytheapplicant. ReportNo.: CISRR25112723202 Reporttemplateversion:CISE-TR-001-A0Page:5of5 5.2.Simultaneoustransmission Limit: KDB447498D01v06,Clause4.3.2,47CFRPart1.1307 InthecaseofxedRFsourcesoperatinginthesametime-averagingperiod,orof multiplemobileorportableRFsourceswithinadeviceoperatinginthesametime averagingperiod,ifthesumofthefractionalcontributionstotheapplicablethresholds islessthanorequalto1asindicatedinthefollowingequation. Where a=numberoffxed,mobile,orportableRFsourcesclaimingexemptionusingparagraph (b)(3)(i)(B)ofthissectionforP,includingexistingexempttransmittersandthosebeing added. b=numberoffxed,mobile,orportableRFsourcesclaimingexemptionusingparagraph (b)(3)(i)(C)ofthissectionforThresholdERP,includingexistingexempttransmittersand thosebeingadded. c=numberofexistingfixed,mobile,orportableRFsourceswithknownevaluationforthespeci edminimumdistanceincludingexistingevaluatedtransmitters. P j =theavailablemaximumtime-averagedpowerortheERP,whicheverisgreater,forxed, mobile,orportableRFsourceiatadistancebetween0.5cmand40cm(inclusive). P th,j =theexemptionthresholdpower(P)accordingtoparagraph(b)(3)(i)(B)ofthissectionfor xed,mobile,orportableRFsourcei. ERP j =theERPoffixed,mobile,orportableRFsourcej. ERP th,j =exemptionthresholdERPforfixed,mobile,orportableRFsourcej,atadistanceofat leastλ/2πaccordingtotheapplicableformulaofparagraph(b)(3)(i)(C)ofthissection. Evaluated k =themaximumreportedSARorMPEoffixed,mobile,orportableRFsourcekeither inthedeviceoratthetransmittersitefromanexistingevaluationatthelocationofexposure. ExposureLimit k =eitherthegeneralpopulation/uncontrolledmaximumpermissibleexposure (MPE)orspecicabsorptionrate(SAR)limitforeachxed,mobile,orportableRFsourcek, asapplicablefrom§1.1310ofthischapter. Result:NotApplicable --------EndofReport--------

AntennaSampleDatasheet customer： DongguanHelaElectronics Co.,Ltd. entryname：H3S Materialcategory：BTantenna AntennaType Monopole AntennaMaterial onboardantenna edition：A0 Date：2025.7.29 Antennamanufacturer:HongjiWirelessCommunication(Shenzhen)Co.,LTD http://www.honant.com.cn Address:12/F,WestBlockB,Building8,HuaqiangCreativeIndustryPark, SightseeingRoad,GuangmingDistrict,Shenzhen Contents 1：Antennatestequipment.................................................1 2：Passivetestreport...........................................................3 3：Structuraldrawing...........................................................5 1 1 ： Antennatestequipment Listofmeters：Agilent5071B； 1.1TheprinciplediagramoftheETSanochoicchamber Picture1.Antennastatictestconnectionmethod 2 1.2PicturesoftheETSanochoicchamber InsidetheETSanochoicchamber TestMachine 3 2 ： Passivetestreport 2.1：antennaS11parameters 2.2：Passiveefficiencyofantenna Freq(MHz)Gain(dBi)Efficiency(%) 2400 1.6840.51 2410 2.0342.99 2420 2.0542.32 2430 2.2741.69 2440 2.2640.47 2450 2.4440.46 2460 2.5841.06 2470 2.8743.22 2480 2.6741.97 4 2.3：PassivepatternofBTantenna 2400MHz 5 3 ： Antennadiagram

ReportNo.:CISRR25112723201 Thetestresultsrelateonlytothetestedsamples. ThetestreportshouldnotbereproducedexceptinfullwithoutthewrittenapprovalofShenzhenBangce TestingTechnologyCo.,Ltd. Page1of55 TESTREPORT ReportNo.CISRR25112723201 ProjectNo.CISR251127232 FCCID2BS3B-HP-200 ApplicantDongguanWeiwuSupplyChainCo.,Ltd. Address Room401,Building11,No.243,HuaideRoad,HumenTown,Dongguan City,GuangdongProvince,China ManufacturerDongguanWeiwuSupplyChainCo.,Ltd. Address Room401,Building11,No.243,HuaideRoad,HumenTown,Dongguan City,GuangdongProvince,China ProductNameWiWUSoundmasterWirelessHeadphone Trademark RICHJOY，WiWU Model/TypereferenceHP-200 ListedModel(s) HP-201,HP-202,HP-203,HP-204,HP-205,HP-206,HP-207,HP-208, HP-209,HP-210 Standard 47CFRPart15.247 DateofsamplereceiptNovember27,2025 TestdateNovember27,2025toDecember1,2025 IssuedateDecember4,2025 TestresultComplied Reviewedby:MorganTan Approvedby:HansHu ReportNo.:CISRR25112723201 Page 2 of 55 Contents 1.STANDARDANDAPPLICABLETESTMETHODS........................................................................................3 2.REPORTVERSION..........................................................................................................................................3 3.TESTDESCRIPTION.......................................................................................................................................4 4.SUMMARY........................................................................................................................................................5 4.1.ProductDescription*..................................................................................................................................5 4.2.RadioSpecificationDescription*..............................................................................................................5 4.3.ModificationofEUT.....................................................................................................................................6 4.4.Deviationfromstandards...........................................................................................................................6 4.5.TestingSite...................................................................................................................................................6 5.TESTCONFIGURATION.................................................................................................................................7 5.1.Testfrequencylist.......................................................................................................................................7 5.2.Descriptionsoftestmode...........................................................................................................................7 5.3.Supportunitusedintestconfiguration....................................................................................................7 5.4.Testsampleinformation.............................................................................................................................7 5.5.Environmentalconditions...........................................................................................................................7 5.6.Statementofthemeasurementuncertainty.............................................................................................8 5.7.EquipmentUsedduringtheTest................................................................................................................9 6.TESTRESULTS.............................................................................................................................................11 6.1.EvaluationResults(Evaluation)...............................................................................................................11 6.1.1.AntennaRequirement.............................................................................................................................11 6.2.RadioSpectrumMatterTestResults(RF)...............................................................................................12 6.2.1.ConductedEmissionatACpowerline.................................................................................................12 6.2.2.MaximumConductedOutputPower.....................................................................................................15 6.2.3.ChannelSeparation................................................................................................................................16 6.2.4.NumberofHoppingFrequencies..........................................................................................................17 6.2.5.DwellTime...............................................................................................................................................18 6.2.6.Conductedbandedgeandspuriousemission...................................................................................20 6.2.7.Radiatedbandedgeemission...............................................................................................................22 6.2.8.RadiatedSpuriousEmission(below1GHz).........................................................................................28 6.2.9.RadiatedSpuriousEmission(Above1GHz)........................................................................................32 7.APPENDIXREPORT......................................................................................................................................40 7.1.20dBBandwidth.........................................................................................................................................40 7.2.ConductedOutputPower.........................................................................................................................42 7.3.DutyCycle..................................................................................................................................................45 7.4.NumberOfHop…

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ReportNo.:CISRR25112723201 Page 57 of 63 8.TESTSETUPPHOTOS ConductedEmissionatACpowerline RadiatedSpuriousEmission(below1GHz) ReportNo.:CISRR25112723201 Page 58 of 63 Radiatedbandedgeemission RadiatedSpuriousEmission(Above1GHz)