2BKNP-Q0677ST-F9Wireless Earbuds

(ShenzhenSmartTradeHomeFurnishingCo.,Ltd.) FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:2024-9-9 FCCID:2BKNP-Q0677ST-F9 Ref.#1:AttestationStatementsPart2.911(d)(5)(i)Filing (ShenzhenSmartTradeHomeFurnishingCo.,Ltd.)certifiesthattheequipmentforwhich authorizationissoughtisnot“covered”equipmentprohibitedfromreceivinganequipment authorizationpursuanttosection2.903oftheFCCrules. Ref.#2:AttestationStatementsPart2.911(d)(5)(ii)Filing ( ShenzhenSmartTradeHomeFurnishingCo.,Ltd. )certifiesthat,asofthedateofthe filingoftheapplication,theapplicantisnotidentifiedontheCoveredListasanentity producing“covered”equipment. Applicant:ShenzhenSmartTradeHomeFurnishingCo.,Ltd. Address:Room510,BuildingB,ZhantaoBusinessSquare,TenglongRoad,Longping Community,DalangStreet,LonghuaDistrict,Shenzhen,Guangdong,China518109 2024-9-9 ContactPerson:KeranPei Tel.:19076197390 Email:[email protected] Sincerely, Signature:

ShenzhenSmartTradeHomeFurnishingCo.,Ltd. * theapplicantmustdesignateacontactlocatedintheUnitedStatesforpurposesofactingasthe applicant’sagentforserviceofprocess,regardlessofwhethertheapplicantisadomesticorforeign entity.AnapplicantlocatedintheUnitedStatesmaydesignateitselfastheagentforserviceofprocess. U.S.AgentDesignationforServiceofProcess- CertificationAttestationLetter 9/9/2024 FederalCommunicationsCommission AuthorizationandEvaluationDivision 1435OaklandMillsRoad Columbia,MD21046 ATTN.:ReviewingEngineer FCCID:2BKNP-Q0677ST-F9 FRN:0035881663 Persection2.911(d)(7)oftheFCCrules, (ShenzhenSmartTradeHomeFurnishingCo.,Ltd.)certifiesthattheequipmentforwhich authorizationissoughtisdesignatedtothefollowingU.S.agent*forserviceofprocess: FederalRegistrationNumber(FRN):0033701590 CompanyName:UUXGROUPINC PhysicalU.S.CompanyAddress:36South18thAvenue,SuiteABrighton,COUSA80601 County:Adams Agentname:JackFu Agentphone ： (213)375-3998 AgentEmailAddress:[email protected] Theabovecontactpersonacceptstheobligationforserviceofprocess. Theapplicantacceptstomaintainanagentfornolessthanoneyearafterthegranteehas terminatedallmarketingandimportationortheconclusionofanyCommission-related proceedinginvolvingtheequipment. ApplicantSigned:AgentSigned(ifdifferenttoApplicant): Signed:Signed: Printedname:KeranPeiPrintedname:JackFu Title:ManagerTitle:Manager CompanyName:ShenzhenSmart TradeHomeFurnishingCo.,Ltd.CompanyName:UUXGROUPINC Date:9/9/2024Date:9/9/2024

PCB Antenna Specification Summary AntennaPhoto Horizontal:2400MHz2450MHz2500MHz Power(dBm) Max:0 Min:-40 Scale:5/div Shenzhen Shenzhen Hongsheng circuit board Co., LTD Room 301, 3rd Floor, Building 1, Hongpengfei Industrial Park, Longguan East Road, Longhua Street, Longhua New District, Shenzhen Vertical:2400MHz2450MHz2500MHz Power(dBm) Max:0Min:-30Scale:5/div ANTTestLabs：AttestationofGlobalComplianceCo.,Ltd. ReturnLoss TheEnvironmentofAntennaRadiationPattern 3Dradiationpatterndiagram XY-plane XZ-plane YZ-plane

ShenzhenSmartTradeHomeFurnishingCo.,Ltd. Date：2024-9-9 ProductModelNumber:ST-F9 FCCID：2BKNP-Q0677ST-F9 Towhomitmayconcern, Re:ProductCertificationRepresentativeAuthorizationLetter WeauthorizeQAILaboratoriesLtd.3980NorthFraserWay,BurnabyB.C. CanadaV5J5K5toactonourbehalfonallmattersconcerningtheabove namedequipment. Thisshallincludethefollowing: Testing Approvalapplicationsandprocedures WedeclarethatORGANIZATION.isallowedtoforwardallinformation relatedtotheapprovalprojecttotheappliedcertificationbodyandtothe notificationentitiesandtodiscussanyissuesconcerningtheapproval application.AnyandallactscarriedoutbyORGANIZATION.onourbehalf shallhavethesameeffectasactsofourown. By: ContactListedonFCCWesbite Title:Manager Email:[email protected] Telephone:19076197390 Onbehalfof:ShenzhenSmartTradeHomeFurnishingCo.,Ltd.

ShenzhenSmartTradeHomeFurnishingCo.,Ltd. OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USA Date:September9,2024 Subject;RequestforConfidentiality FCCID:2BKNP-Q0677ST-F9 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:KeranPei Title:Manager

Siza：L:10mm*W:5mm FCCID:2BKNP-Q0677ST-F9

FCCID:2BKNP-Q0677ST-F9 RFEXPOSUREEVALUATIONMETHOD AccordingtoKDB447498D01GeneralRFExposureGuidancev06,Unlessspecificallyrequiredbythe publishedRFexposureKDBprocedures,standalone1-gheadorbodyand10-gextremitySARevaluation forgeneralpopulationexposureconditions,bymeasurementornumericalsimulation,isnotrequiredwhen thecorrespondingSARTestExclusionThresholdcondition(s),listedbelow,is(are)satisfied. For100MHzto6GHzandtestseparationdistances≤50mm,the1-gand10-gSARtestexclusion thresholdsaredeterminedbythefollowing: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance,mm)]·[√f (GHz) ] ≤3.0for1-gSAR,and≤7.5for10-gextremitySAR,where f (GHz) istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbeforecalculation Theresultisroundedtoonedecimalplaceforcomparison AccordingtoFCC1.1310:Thecriterialistedinthefollowingtableshallbeusedto evaluatetheenvironmentimpactofhumanexposuretoradiofrequency(RF)Radiation asspecifiedin§1.1307(b) EUTSpecification EUT WirelessEarbuds Frequencyband (Operating) WLAN:2.412GHz~2.462GHz WLAN:5.150GHz~5.250GHz WLAN:5.725GHz~5.850GHz OthersBT:2402-2480MHz DevicecategoryPortable(<20cmseparation) Mobile(>20cmseparation) Others ExposureclassificationOccupational/Controlledexposure(S=5mW/cm2) GeneralPopulation/Uncontrolledexposure (S=1mW/cm 2 ) AntennadiversitySingleantenna Multipleantennas Txdiversity Rxdiversity Tx/Rxdiversity Max.outputpower3.240dBm(0.00211W) Antennagain(Max)-0.58dBi EvaluationappliedMPEEvaluation SAREvaluation FCCID:2BKNP-Q0677ST-F9 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. FCCID:2BKNP-Q0677ST-F9 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 24021.1501.30-0.5851.5500.35343 24412.1881.66-0.5851.5620.45253 24802.4451.76-0.5851.5750.48393 π/4DQPSK 24021.7601.50-0.5851.5500.40673 24412.6391.84-0.5851.5620.50203 24802.8321.92-0.5851.5750.52903 8-DPSK 24022.1381.64-0.5851.5500.44373 24413.0742.03-0.5851.5620.55493 24803.2402.11-0.5851.5750.58113 GFSK 24021.2541.33-0.5851.5500.36203 24401.6851.47-0.5851.5620.40303 24802.1561.64-0.5851.5750.45273 Remark:Thebestcasegainoftheantennais-0.58dBi. -0.58dBilogarithmictermsconverttonumericresultisnearly0.87 The1-gand10-gSARtestexclusionthresholdsfor100MHzto6GHzattest separationdistances≤50mmaredeterminedby: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparation distance,mm)]·[√f(GHz)] ThetestResultislessthan3.0for1-gSARand≤7.5for10-gextremitySAR. Conclusion:NoSARisrequired.

BSLTestingCo.,Ltd.ReportNo.:BSL24080144P01-R01 Page 1 of31 FCCPART15SUBPARTCTESTREPORT FCCPART15.247 ReportReferenceNo........................: FCCID.................................................: BSL24080144P01-R01 2BKNP-Q0677ST-F9 Compiledby (position+printedname+signature) .. : Engineer/CindyZheng Supervisedby (position+printedname+signature)..: Manager/HaleyWen Approvedby (position+printedname+signature)..: RFManager/VivianJiang Dateofissue.........................................:September3,2024 TestingLaboratoryName................: BSLTestingCo.,Ltd. Address.................................................: 1/F,BuildingB,XinshidaiGRPark,ShiyanStreet,Bao'anDistrict, Shenzhen,Guangdong,518052,People’sRepublicofChina Applicant’sname...............................: ShenzhenSmartTradeHomeFurnishingCo.,Ltd. Address ................................................. : Room510,BuildingB,ZhantaoBusinessSquare,TenglongRoad, LongpingCommunity,DalangStreet,LonghuaDistrict,Shenzhen, Guangdong,China518109 Testspecification .............................. : Standard ................................................ : FCCPart15.247 BSLTestingCo.,Ltd.Allrightsreserved. Thispublicationmaybereproducedinwholeorinpartfornon-commercialpurposesaslongastheBSL TestingCo.,Ltd.isacknowledgedascopyrightownerandsourceofthematerial.BSLTestingCo.,Ltd. takesnoresponsibilityforandwillnotassumeliabilityfordamagesresultingfromthereader'sinterpretation ofthereproducedmaterialduetoitsplacementandcontext. Equipmentdescription ..................... : WirelessEarbuds TradeMark............................................: YYDSBAYS Manufacturer ......................................... :ShenzhenSmartTradeHomeFurnishingCo.,Ltd. Model/Typereference.........................:ST-F9 ListedModels......................................: N/A Modulation...........................................:GFSK Frequency .............................................. From2402MHzto2480MHz Rating ..................................................... :DC3.7VFromBattery Result.....................................................:PASS BSLTestingCo.,Ltd.ReportNo.:BSL24080144P01-R01 Page 2 of31 TESTREPORT EquipmentunderTest:WirelessEarbuds Model/Type:ST-F9 ListedModels:N/A ModelDeclaration:N/A Applicant : ShenzhenSmartTradeHomeFurnishingCo.,Ltd. Address: Room510,BuildingB,ZhantaoBusinessSquare,TenglongRoad, LongpingCommunity,DalangStreet,LonghuaDistrict,Shenzhen, Guangdong,China518109 Manufacturer : ShenzhenSmartTradeHomeFurnishingCo.,Ltd. Address: Room510,BuildingB,ZhantaoBusinessSquare,TenglongRoad, LongpingCommunity,DalangStreet,LonghuaDistrict,Shenzhen, Guangdong,China518109 TestResult:PASS Thetestreportmerelycorrespondstothetestsample. Itisnotpermittedtocopyextractsofthesetestresultwithoutthewrittenpermissionofthetest laboratory. BSLTestingCo.,Ltd.ReportNo.:BSL24080144P01-R01 Page 3 of31 Contents 1TESTSTANDARDS...................................................................................................................4 2SUMMARY......................................................................................................................................5 2.1GeneralRemarks5 2.2ProductDescription5 2.3EquipmentUnderTest5 2.4ShortdescriptionoftheEquipmentunderTest(EUT)5 2.5EUToperationmode6 2.6BlockDiagramofTestSetup6 2.7RelatedSubmittal(s)/Grant(s)6 2.8Modifications6 3TESTENVIRONMENT.............................................................................................................7 3.1Addressofthetestlaboratory7 3.2TestFacility7 3.3Environmentalconditions7 3.4Summaryofmeasurementresults8 3.5Statementofthemeasurementuncertainty8 3.6EquipmentsUsedduringtheTest9 4TESTCONDITIONSANDRESULTS............................................................................11 4.1ACPowerConductedEmission11 4.2RadiatedEmissionsandBandEdge14 4.3MaximumPeakOutputPower21 4.4PowerSpectralDensity22 4.56dBBandwidth24 4.6Out-of-bandEmissions26 4.7AntennaRequirement29 5TESTSETUPPHOTOSOFTHEEUT..........................................................................30 6PHOTOSOFTHEEUT.........................................................................................................31 BSLTestingCo.,Ltd.ReportNo.:BSL24080144P01-R01 Page 4 of31 1TESTSTANDARDS Thetestswereperformedaccordingtofollowingstandards: FCCRulesPart15.247:FrequencyHopping,DirectSpreadSpectrumandHybridSystemsthatarein operationwithinthebandsof902-928MHz,2400-2483.5MHz,and5725-5850MHz. ANSIC63.10-2013:AmericanNationalStandardforTestingUnlicensedWirelessDevices KDB558074D01V05r02:GuidanceforPerformingComplianceMeasurementsonDigitalTransmission Systems(DTS)OperatingUnder§15.247 BSLTestingCo.,Ltd.ReportNo.:BSL24080144P01-R01 Page 5 of31 2SUMMARY 2.1GeneralRemarks Dateofreceiptoftestsample:August25,2024 Testingcommencedon:August25,2024 Testingconcludedon: September3,2024 2.2ProductDescription ProductDescription:WirelessEarbuds Model/Typereference:ST-F9 Powersupply:DC3.7Vfrombattery Adapterinformation (Auxiliarytestsuppliedby testingLab） Model:EP-TA20CBC Input:AC100-240V50/60Hz Output:DC5V2A FirmwareVersion:EPTA5.14.2 Manufacture:HuizhouDongyangYienbiElectronicsCo.,Ltd TestingsampleID： BSL24080144P01-R01-1#(Engineersample), BSL24080144P01-R01-2#(Normalsample) BluetoothBLE Supportedtype:BluetoothlowEnergy Modulation: GFSK Operationfrequency: 2402MHzto2480MHz Channelnumber:40 Channelseparation: 2MHz Antennatype: PCBAntenna Antennagain:-0.58dBi 2.3EquipmentUnderTest Powersupplysystemutilised Powersupplyvoltage: ○ 230V/50Hz ○ 120V/60Hz ○ 12VDC ○ 24VDC ● Other(specifiedinblankbelow) DC3.7VFromBattery 2.4ShortdescriptionoftheEquipmentunderTest(EUT) ThisisaWirelessEarbuds. Thereare1pairsofheadphonesinsidetheheadphonechargingcase.Theleftandrightearsareconsistent andtestedontherightear. Formoredetails,refertotheuser’smanualoftheEUT. BSLTestingCo.,Ltd.ReportNo.:BSL24080144P01-R01 Page 6 of31 2.5EUToperationmode TheApplicantprovidescommunicationtoolssoftware(Engineermode)tocontroltheEUTforstayi…

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FCCID：2BKNP-Q0677ST-F9 FCCID：2BKNP-Q0677ST-F9