2AYR3-FOSHP-2447PBKids Wirless 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

Fospower,Inc 2.911(d)(5)(i)EquipmentTypeAttestationv1.2 Section2.911(d)(5)(i)Certification–EquipmentType Companyname:Fospower,Inc Address:375RivertownDr#500,WoodburySaintPaulMN55125,USA ProductName:KidsWirlessHeadphone FCCID:2AYR3-FOSHP-2447PB Model(s):FOSHP-2447PB,FOSHP-2446PA,BTH20K 2.911(d)(5)(i)EquipmentType We,[Fospower,Inc](“theapplicant”)certifythattheequipmentforwhichauthorizationissought throughcertificationisnot:  Prohibitedfromreceivinganequipmentauthorizationpursuantto§2.903;oftheFCCrules.  Identifiedasanequipmenttypeinthe“CoveredList” NOTE1 Yourssincerely, Name:FeonTanDate:2024.6.18 TitleandCompanyname:Manager/Fospower,Inc NOTE1 “CoveredList”;istheListofEquipmentandServicesCoveredBySection2ofTheSecureNetworksAct,availableat https://www.fcc.gov/supplychain/coveredlist References; 1)986446D01CoveredEquipmentv01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2)FederalRegisterdocument2022-28263publishedon02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

Fospower,Inc 2.911(d)(5)(ii)ApplicantAttestationv1.3 Section2.911(d)(5)(ii)Certification–Applicant(CoveredList) Companyname:Fospower,Inc Address:375RivertownDr#500,WoodburySaintPaulMN55125,USA ProductName:KidsWirlessHeadphone FCCID:2AYR3-FOSHP-2447PB Model(s):FOSHP-2447PB,FOSHP-2446PA,BTH20K 2.911(d)(5)(ii)Applicantfiling We,[Fospower,Inc](“theapplicant”)certifythat,asofthedateofthefilingoftheapplication,the applicantisnotidentified NOTE1 onthe“CoveredList” NOTE2 ,establishedpursuantto§1.50002of thischapter,asanentityproducingcoveredcommunicationsequipment. Yourssincerely, Name:FeonTanDate:2024.6.18 TitleandCompanyname:Manager/Fospower,Inc NOTE1 Deleteoptionnotapplicabletothisapplication. NOTE2 “CoveredList”;istheListofEquipmentandServicesCoveredBySection2ofTheSecureNetworksAct,availableat https://www.fcc.gov/supplychain/coveredlist References; 1)986446D01CoveredEquipmentv01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2)FederalRegisterdocument2022-28263publishedon02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

Fospower,Inc AgentAuthorization Company:Fospower,Inc Address:375RivertownDr#500,WoodburySaintPaulMN55125,USA ProductName:KidsWirlessHeadphone ModelNumber(s):FOSHP-2447PB,FOSHP-2446PA,BTH20K ProductDescription:KidsWirlessHeadphone WeauthorizeMiCOMLabsInc.,575BoulderCourt,Pleasanton,California94566,USA, toactonourbehalfonallmattersconcerningthecertificationofabovenamed equipment. WedeclarethatMiCOMLabsInc.isallowedtoforwardallinformationrelatedtothe approvalandcertificationofequipmenttotheregulatoryagenciesasrequiredandto discussanyissuesconcerningtheapprovalapplication.Anyandallactscarriedoutby MiCOMLabsonourbehalfshallhavethesameeffectasactsofourown. Signature:Date:2024.6.18 Name:FeonTan Title:Manager Company:Fospower,Inc

Fospower,Inc OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USA Date:2024.6.18 Subject;RequestforConfidentiality FCCID:2AYR3-FOSHP-2447PB ToWhomItMayConcern, PursuanttotheprovisionsoftheCommission’srulesTitle47Sections§0.457and§0.459,we arerequestingtheCommissiontowithholdthefollowingattachment(s)asconfidential documentsfrompublicdisclosureindefinitely. Thesedocumentscontaindetailedsystemandequipmentdescriptionsandareconsideredas proprietaryinformationinoperationoftheequipment.Thepublicdisclosureofthesedocuments mightbeharmfultoourcompanyandwouldgivecompetitorsanunfairadvantageinthemarket. SchematicDiagram BlockDiagram PartsList OperationalDescription Tune-upProcedure Inadditionaltoabovementioneddocuments,inordertocomplywiththemarketingregulations inTitle47CFR§2.803andtheimportationrulesinTitle47CFR§2.1204,whileensuringthat businesssensitiveinformationremainsconfidentialuntiltheactualmarketingofnewly authorizeddevices,werequestShortTermConfidentialityofthefollowingattachment(s); ExternalPhotos TestSetupPhotos InternalPhotos UserManual For45days,pursuanttoPublicNoticeDA04-1705. OR For180dayspursuanttoKDB726920D01. Itisourunderstandingthatallmeasurementtestreports,FCCIDlabelformatand correspondenceduringthecertificationreviewprocesscannotbegrantedasconfidential documentsandthisinformationwillbeavailableforpublicreviewoncethegrantofequipment authorizationisissued. Sincerely, Signature: Name:FeonTan Title:Manager

Fospower,Inc ModelDifference Productdescription:KidsWirlessHeadphone Modelname:BTH20K FOSHP-2446PA,BTH20K TradeName:N/A Onlyfordifferentmodelname Regards Sincerely Client’ssignature: Client’sname/title:FeonTan/Manager Contactinformation/address:375RivertownDr#500,WoodburyMN55125,USA

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Labelandlabellocation 2cm KidsWirlessHeadphone FCCID:2AYR3-FOSHP-2447PB 1cm

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FCCID:2AYR3-FOSHP-2447PB RFExposureEvaluation AccordingtoWS-1GeneralRFExposureGuidancev06andpart2.1093 ， Unless specificallyrequiredbythepublishedRFexposureKDBprocedures,standalone1-ghead orbodyand10-gextremitySARevaluationforgeneralpopulationexposureconditions,by measurementornumericalsimulation,isnotrequiredwhenthecorrespondingSARTest ExclusionThresholdcondition(s),listedbelow,is(are)satisfied. For100MHzto6GHzandtestseparationdistances≤50mm,the1-gand10-gSARtest exclusionthresholdsaredeterminedbythefollowing: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance, mm)]·[√f (GHz) ]≤3.0for1-gSAR,and≤7.5for10-gextremitySAR,where f (GHz) istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbeforecalculation Theresultisroundedtoonedecimalplaceforcomparison Here, ForBT TestMode Max Power(dBm) Max Power(mW) Frequency(MHz) Min. distance(mm) Calc. thresholds limit GFSK-0.6710.86244150.265593.0 π/4-DQPSK0.2451.06244150.327963.0 8-DPSK2.4541.76244150.545403.0 SoaSARtestisnotrequired

Product specification Quick Reference Date Antenna module on the system board Frequenc Range 2402 ~ 24888888 0MHz Ant. Port Input Pwr. (dBm) 0 (Typ. BT class 2 output power) Tot. Rad. Pwr. (dBm) -1.2 (Input pwr – loss pwr) Peak EIRP(dBm) 1.2 Directivity (dBi) 1 (all direction antenna) Efficiency (dB) 6 0.2 % Gain (dBi) 1.2 (Avg Gain XY-plane) Maximum Power (dBm) 1.7 (XY-plane) Minimum Power (dBm) -4(XY-plane) Avg. Power (dBm) -0.5(XY-plane) Input Impendence(ohm) 50 Polarization Type V ertical & Horizontal V . S .W . R < 1.4 All the technical data and information contained herein are subject to change without prior notice Antenna Layout & module on the system board Retum Loss The Environment of Antenna Radiation Pattem 3D radiation pattern diagram XY-plane XZ-plane YZ-plane

ProjectNo.:ZKT-2406056291E Page 1 of 71 FCCTESTREPORT FCCID:2AYR3-FOSHP-2447PB ReportNumber...................................: ZKT-2406056291E DateofTest......................................................:Jun.05,2024toJun.12,2024 Dateofissue ......................................... :Jun.12,2024 Totalnumberofpages.........................71 TestResult .......................................... : PASS TestingLaboratory. .......................... : ShenzhenZKTTechnologyCo.,Ltd. Address ............................................... : 1/F,No.101,BuildingB,No.6,TangweiCommunityIndustrial Avenue,FuhaiStreet,Bao'anDistrict,Shenzhen,China Applicant'sname ............................. : Fospower,Inc Address...............................................: 375RivertownDr#500,WoodburyMN55125,USA Manufacturer'sname......................: DongguanShangyuanElectronicsCo.,Ltd Address ............................................... : XintangComprehensiveDevelopmentZone,HengliHengliTown, DongguanCity,Guangdong,China Testspecification: Standard ................................................ : FCCCFRTitle47Part15SubpartCSection15.247 ANSIC63.10:2013 Testprocedure ..................................... : / Non-standardtestmethod ................ :N/A TestReportFormNo. ....................... : TRF-EL-112_V0 TestReportForm(s)Originator.....: ZKTTesting MasterTRF........................................: Dated:2021-04-22 ThisdevicedescribedabovehasbeentestedbyZKT,andthetestresultsshowthattheequipmentunder test(EUT)isincompliancewiththeFCCrequirements.Anditisapplicableonlytothetestedsample identifiedinthereport. Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofZKT,thisdocumentmay bealteredorrevisedbyZKT,personalonly,andshallbenotedintherevisionofthedocument. Productname ..................................... :KidsWirlessHeadphone Trademark...........................................:N/A Model/Typereference ......................... : FOSHP-2447PB FOSHP-2446PA,BTH20K Ratings..................................................: Input:5V1A Battery:3.7V,800mAh,2.96Wh , ProjectNo.:ZKT-2406056291E Page 2 of 71 Testingprocedureandtestinglocation: TestingLaboratory .......................................... :ShenzhenZKTTechnologyCo.,Ltd. Address............................................................:1/F,No.101,BuildingB,No.6,TangweiCommunity IndustrialAvenue,FuhaiStreet,Bao'anDistrict, Shenzhen,China JimLiu Testedby(name+signature) ....................... : JacksonFang Reviewer(name+signature) ....................... : LakeXie Approved(name+signature).......................: ProjectNo.:ZKT-2406056291E Page 3 of 71 TableofContents Page 1.VERSION..................................................................................................................................5 2.TESTSUMMARY...................................................................................................................6 2.1TESTFACILITY.........................................................................................................................7 2.2MEASUREMENTUNCERTAINTY......................................................................................7 3.1GENERALDESCRIPTIONOFEUT...................................................................................8 3.2TestSetupConfiguration......................................................................................................10 3.3SupportEquipment.................................................................................................................10 4.EMCEMISSIONTEST........................................................................................................13 4.1Conductedemissions............................................................................................................13 4.1.1POWERLINECONDUCTEDEMISSIONLimits.......................................................13 4.1.2TESTPROCEDURE..........................................................................................................13 4.1.3DEVIATIONFROMTESTSTANDARD.......................................................................13 4.1.4TESTSETUP.......................................................................................................................13 4.1.5EUTOPERATINGCONDITIONS..................................................................................14 4.1.6TestResult............................................................................................................................15 4.2Radiatedemissions................................................................................................................17 4.2.1RadiatedEmissionLimits.................................................................................................17 4.2.2TESTPROCEDURE..........................................................................................................17 4.2.3DEVIATIONFROMTESTSTANDARD.......................................................................18 4.2.4TESTSETUP.......................................................................................................................18 4.2.5EUTOPERATINGCONDITIONS..................................................................................19 4.2.6TESTRESULTS..................................................................................................................19 5.RADIATEDBANDEMISSIONMEASUREMENT........................................................28 5.1TestRequirement:..................................................................................................................28 5.2TESTPROCEDURE..............................................................................................................28 5.3DEVIATIONFROMTESTSTANDARD...........................................................................29 5.4TESTSETUP.....................................................................................................…

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