2BWWT-KC3Magnetic Levitation Speaker

FCC Requirement changes or modifications not expressly approved by the party responsible for compliance could void the users authority to operate the equipment. 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. 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. lf 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. _ lncrease 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.

Rev1/26/2023 (SHENZHENWEIKUYITECHNOLOGYCO.,LTD) FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:25/7/2026 Ref:AttestationStatementsPart2.911(d)(5)(i)Filing FCCID:2BWWT-KC3 [SHENZHENWEIKUYITECHNOLOGYCO.,LTD]certifiesthattheequipmentforwhichauthorizationis soughtisnot“covered”equipmentprohibitedfromreceivinganequipmentauthorizationpursuantto section2.903oftheFCCrules. [SHENZHENWEIKUYITECHNOLOGYCO.,LTD]certifiesthattheequipmentforwhichauthorizationis soughtdoesnotincludecybersecurityoranti-virussoftwareproducedorprovidedbyKasperskyLab,Inc. oranyofitssuccessorsandassignees,includingequipmentwithintegratedKasperskyLab,Inc.(oranyof itssuccessorsandassignees)cybersecurityoranti-virussoftwarepursuanttoDA-24-886andKDB 986446D01CoveredEquipmentGuidancesectionB(2a). Deviceisinherentlycompliantbasedonhardwarelimitationsorsoftwarecontrols. or ASoftwareBillofMaterials(SBOM)isprovidedtotheTCBforreview,and Theend-userorthirdpartiescannotinstalladditionalsoftwareonthisdevice. Sincerely, ChengxiuTang/CEO Rev1/26/2023 (SHENZHENWEIKUYITECHNOLOGYCO.,LTD) FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:25/7/2026 Ref:AttestationStatementsPart2.911(d)(5)(ii)Filing FCCID:2BWWT-KC3 [SHENZHENWEIKUYITECHNOLOGYCO.,LTD]certifiesthat,asofthedateofthefilingoftheapplication, theapplicantisnotidentifiedontheCoveredList(asaspecificallynamedentityoranyofitssubsidiaries oraffiliates)asanentityproducing“covered”equipment. Sincerely, (Applicantsignature) (Applicantprintedname)ChengxiuTang/CEO

SHENZHENWEIKUYITECHNOLOGYCO.,LTD Date:2026-7-25 DearSir/Madam, We,SHENZHENWEIKUYITECHNOLOGYCO.,LTD.Herebydeclaresthe,following statement Productname:MagneticLevitationSpeaker FCCID:2BWWT-KC3 Modelno.:KC3,KC4,KC5,KC6,KC8,KC9;PCBboard,circuit,structureandinternalof thesemodel(s)arethesame,Onlymodelnumberandcoloraredifferentforthesemodel: Sincerely, Name/Title:ChengxiuTang/CEO Company:SHENZHENWEIKUYITECHNOLOGYCO.,LTD Address:513N,5/F,Bldg6,No.18Tairan8thRd,Tian'anCommunity,ShatouStreet,Futian District,Shenzhen,China Phone:13689597389 E-Mail:[email protected]

SHENZHENWEIKUYITECHNOLOGYCO.,LTD ‘Date：2026-7-25 ProductModelNumber:KC3 FCCID:2BWWT-KC3 Towhomitmayconcern, Re:ProductCertificationRepresentativeAuthorizationLetter WeauthorizeQAILaboratoriesLtd.3980NorthFraserWay,BurnabyB.C. CanadaV5J5K5toactonourbehalfonallmattersconcerningtheabove namedequipment. Thisshallincludethefollowing: Testing Approvalapplicationsandprocedures WedeclarethatQAILaboratoriesLtd.isallowedtoforwardallinformation relatedtotheapprovalprojecttotheappliedcertificationbodyandtothe notificationentitiesandtodiscussanyissuesconcerningtheapproval application.AnyandallactscarriedoutbyQAILaboratoriesLtd.onour behalfshallhavethesameeffectasactsofourown. By: ContactListedonFCCWesbite Title:ChengxiuTang/CEO Email:[email protected] Telephone:13689597389 Onbehalfof:SHENZHENWEIKUYITECHNOLOGYCO.,LTD

SHENZHENWEIKUYITECHNOLOGYCO.,LTD OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USA Date:July25,2026 Subject;RequestforConfidentiality FCCID:2BWWT-KC3 ToWhomItMayConcern, PursuanttotheprovisionsoftheCommission’srulesTitle47Sections§0.457and§0.459,we arerequestingtheCommissiontowithholdthefollowingattachment(s)asconfidential documentsfrompublicdisclosureindefinitely. Thesedocumentscontaindetailedsystemandequipmentdescriptionsandareconsideredas proprietaryinformationinoperationoftheequipment.Thepublicdisclosureofthese documentsmightbeharmfultoourcompanyandwouldgivecompetitorsanunfairadvantage inthemarket. SchematicDiagram BlockDiagram PartsList OperationalDescription Tune-upProcedure SoftwareSecurityRequirementsforUNIIdevices 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:ChengxiuTang Title:CEO

AnnexA ExternalPhotos TestModelNo.:KC3 Page 1 of6 AnnexA ExternalPhotos TestModelNo.:KC3 Page 2 of6 AnnexA ExternalPhotos TestModelNo.:KC3 Page 3 of6 AnnexA ExternalPhotos TestModelNo.:KC3 Page 4 of6 AnnexA ExternalPhotos TestModelNo.:KC3 Page 5 of6 AnnexA ExternalPhotos TestModelNo.:KC3 Page 6 of6

Size:2cm*3cm MagneticLevitationSpeaker Model:KC3 FCCID:2BWWT-KC3

AnnexB InternalPhotos TestModelNo.：KC3 Page 1 of5 AnnexB InternalPhotos TestModelNo.：KC3 Page 2 of5 AnnexB InternalPhotos TestModelNo.：KC3 Page 3 of5 Chipantenna AnnexB InternalPhotos TestModelNo.：KC3 Page 4 of5 AnnexB InternalPhotos TestModelNo.：KC3 Page 5 of5

MAXLABTestingCo.,Ltd.ReportNo.:MAX26060208P01-R01RF RFTESTREPORT ReportReferenceNo. ....................... :MAX26060208P01-R01RF FCCID. ................................................ :2BWWT-KC3 Compiledby (position+printedname+signature)..: Engineer/CindyZheng Supervisedby (position+printedname+signature) .. : Manager/HaleyWen Approvedby (position+printedname+signature) .. : RFManager/VivianJiang Dateofissue ......................................... :July24,2026 TestingLaboratoryName ................ :MAXLABTestingCo.,Ltd. Address.................................................: 1/F,BuildingB,XinshidaiGRPark,ShiyanStreet,Bao'anDistrict, Shenzhen,Guangdong,518052,People’sRepublicofChina Applicant’sname...............................:SHENZHENWEIKUYITECHNOLOGYCO.,LTD Address.................................................: 513N,5/F,Bldg6,No.18Tairan8thRd,Tian'anCommunity,Shatou Street,FutianDistrict,Shenzhen Testspecification..............................: Standard................................................:FCC1.1310 MAXLABTestingCo.,Ltd.Allrightsreserved. Thispublicationmaybereproducedinwholeorinpartfornon-commercialpurposesaslongastheMAXLAB TestingCo.,Ltd.isacknowledgedascopyrightownerandsourceofthematerial.MAXLABTesting Co.,Ltd.takesnoresponsibilityforandwillnotassumeliabilityfordamagesresultingfromthereader's interpretationofthereproducedmaterialduetoitsplacementandcontext. Testitemdescription........................:MagneticLevitationSpeaker TradeMark ............................................ : N/A Manufacturer ......................................... : SHENZHENWEIKUYITECHNOLOGYCO.,LTD Model/Typereference.........................: KC3 ListedModels......................................: KC4,KC5,KC6,KC8,KC9 ModulationType...................................:GFSK,π/4DQPSK,8-DPSK OperationFrequency..........................:From2402MHzto2480MHz Rating ..................................................... :DC3.7VFromBatteryorDC5VbyUSBport Result ..................................................... :PASS MAXLABTestingCo.,Ltd.ReportNo.:MAX26060208P01-R01RF RFEXPOSUREEVALUATIONMETHOD AccordingtoFCC1.1310:Thecriterialistedinthefollowingtableshallbeusedto evaluatetheenvironmentimpactofhumanexposuretoradiofrequency(RF)Radiation asspecifiedin§1.1307(b) EUTSpecification Frequencyband(Operating)WLAN:2.412GHz~2.462GHz WLAN:5.150GHz~5.250GHz WLAN:5.725GHz~5.850GHz BT:2402-2480MHz DevicecategoryPortable(<20cmseparation) Mobile(>20cmseparation) Others Exposureclassification 3.0for1-gSARand≤7.5for10-gextremitySAR AntennadiversitySingleantenna Multipleantennas Txdiversity Rxdiversity Tx/Rxdiversity Max.outputpower5.84dBm(0.00384W) Antennagain(Max)1.9dBi EvaluationappliedMPEEvaluation SAREvaluation MAXLABTestingCo.,Ltd.ReportNo.:MAX26060208P01-R01RF RFEXPOSUREEVALUATIONMETHOD SARTestExclusionThresholdsfor100MHz–6GHzand≤50mm ApproximateSARTestExclusionPowerThresholdsatSelectedFrequenciesandTestSeparation DistancesareillustratedinthefollowingTable. The1-gand10-gSARtestexclusionthresholdsfor100MHzto6GHzattestseparation distances ≤ 50mmaredeterminedby: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance, mm)]·[√f(GHz)]≤3.0for1-gSARand≤7.5for10-gextremitySAR,where f(GHz)istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbeforecalculation Theresultisroundedtoonedecimalplaceforcomparison Thetestexclusionsareapplicableonlywhentheminimumtestseparationdistanceis≤50 mmandfortransmissionfrequenciesbetween100MHzand6GHz.Whentheminimumtest separationdistanceis<5mm,adistanceof5mmisappliedtodetermineSARtest exclusion. MAXLABTestingCo.,Ltd.ReportNo.:MAX26060208P01-R01RF Maximummeasuredtransmitterpower. BR/EDR+BLE Operating Mode Freque ncy Measur ed Power max. power Antenna Gain min.test separation distance [√f(GHz)] ResultLimit (MHz)(dBm)(mW)(dBi)(mm) GFSK 24022.241.671.951.5500.51923 24414.742.981.951.5620.93073 24805.173.291.951.5751.03583 π/4DQPSK 24022.791.901.951.5500.58933 24415.263.361.951.5621.04913 24805.573.611.951.5751.13573 8-DPSK 24022.991.991.951.5500.61703 24415.433.491.951.5621.09103 24805.843.841.951.5751.20853 GFSK 24022.281.691.951.5500.52403 24404.843.051.951.5620.95223 24804.873.071.951.5750.96663 Conclusion:NoSARisrequired.

InvertedFAntennaSpecification Summary ITEMANTSPEC ModelName 2.4GANT AntennaGain 1.9dBi AntennaType Chipantenna AntennaLength 5.0x2.2x1.0mm VSWR(@center frequency)* 1.2Max Characteristic Impedance 50Ω ManufactureUnictronTechnologiesCorporation Address No.41,Shuei-Keng,Guan-Si,Hsin-Chu30648,Taiwan AntennaPhoto&Length(mm) 3DRadiationGainPattern(with40x40mm 2 EvaluationBoard) Frequencyvs.V.S.W.R.andTotalRadiationGain

MAXLABTestingCo.,Ltd. ReportNo.:MAX26060208P01-R02 Page 1 of31 FCCPART15SUBPARTCTESTREPORT FCCPART15.247 ReportReferenceNo........................:MAX26060208P01-R02 FCCID.................................................:2BWWT-KC3 Compiledby (position+printedname+signature)..: Engineer/CindyZheng Supervisedby (position+printedname+signature) .. : Manager/HaleyWen Approvedby (position+printedname+signature)..: RFManager/VivianJiang Dateofissue ......................................... :July24,2026 TestingLaboratoryName ................ : MAXLABTestingCo.,Ltd. Address ................................................. : 1/F,BuildingB,XinshidaiGRPark,ShiyanStreet,Bao'anDistrict, Shenzhen,Guangdong,518052,People’sRepublicofChina Applicant’sname...............................: SHENZHENWEIKUYITECHNOLOGYCO.,LTD Address.................................................: 513N,5/F,Bldg6,No.18Tairan8thRd,Tian'anCommunity,Shatou Street,FutianDistrict,Shenzhen Testspecification..............................: Standard................................................: FCCPart15.247 ANSIC63.10-2020+Cor.1-2023+C63.10a-2024+Erratato C63.10a-2024 MAXLABTestingCo.,Ltd.Allrightsreserved. Thispublicationmaybereproducedinwholeorinpartfornon-commercialpurposesaslongasthe MAXLABTestingCo.,Ltd.isacknowledgedascopyrightownerandsourceofthematerial.MAXLAB TestingCo.,Ltd.takesnoresponsibilityforandwillnotassumeliabilityfordamagesresultingfromthe reader'sinterpretationofthereproducedmaterialduetoitsplacementandcontext. Equipmentdescription.....................:MagneticLevitationSpeaker TradeMark ............................................ : N/A Manufacturer ......................................... : SHENZHENWEIKUYITECHNOLOGYCO.,LTD Model/Typereference.........................: KC3 ListedModels......................................: KC4,KC5,KC6,KC8,KC9 Modulation ........................................... :GFSK Frequency..............................................From2402MHzto2480MHz Ratings ................................................... :DC3.7VFromBatteryorDC5VbyUSBport Result.....................................................:PASS MAXTestingCo.,Ltd. ReportNo.:MAX26060208P01-R02 Page2of31 TESTREPORT EquipmentunderTest:MagneticLevitationSpeaker Model/Type:KC3 ListedModels:KC4,KC5,KC6,KC8,KC9 ModelDeclaration:Allthemodelsareelectricalidenticalincludingthesamesoftware parameterandhardwaredesign,samemechanicalstructureand design,theonlydifferenceisthemodelnameddifferent. Applicant : SHENZHENWEIKUYITECHNOLOGYCO.,LTD Address: 513N,5/F,Bldg6,No.18Tairan8thRd,Tian'anCommunity,Shatou Street,FutianDistrict,Shenzhen Manufacturer : SHENZHENWEIKUYITECHNOLOGYCO.,LTD Address: 513N,5/F,Bldg6,No.18Tairan8thRd,Tian'anCommunity,Shatou Street,FutianDistrict,Shenzhen TestResult : PASS Thetestreportmerelycorrespondstothetestsample. Itisnotpermittedtocopyextractsofthesetestresultwithoutthewrittenpermissionofthetest laboratory. MAXTestingCo.,Ltd. ReportNo.:MAX26060208P01-R02 Page3of31 Contents 1T E S TS T A N D A R D S..............................................................................................................................4 2S U M M A R Y.................................................................................................................................................5 2.1GeneralRemarks..........................................................................................................................................5 2.2ProductDescription.....................................................................................................................................5 2.3EquipmentUnderTest.................................................................................................................................5 2.4ShortdescriptionoftheEquipmentunderTest(EUT).............................................................................5 2.5EUToperationmode.....................................................................................................................................6 2.6BlockDiagramofTestSetup.......................................................................................................................6 2.7RelatedSubmittal(s)/Grant(s)...................................................................................................................6 2.8Modifications...............................................................................................................................................6 3T E S TE N V I R O N M E N T........................................................................................................................7 3.1Addressofthetestlaboratory....................................................................................................................7 3.2TestFacility...................................................................................................................................................7 3.3Environmentalconditions............................................................................................................................7 3.4Summaryofmeasurementresults..............................................................................................................8 3.5Statementofthemeasurementuncertainty..............................................................................................8 3.6EquipmentsUsedduringtheTest..............................................................................................................9 4T E S TC O N D I T I O N SA N DR E S U L T S.......................................................................................1 1 4.1ACPowerConductedEmission................................................................................................................11 4.2RadiatedEmissionsandBandEdge........................................................................................................14 4.3MaximumPeakOutputPower........…

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Testsetup TestModelNo.:KC3 Testsetup TestModelNo.:KC3