2BSTZ-YU7Bluetooth Headphones

产品型号:OWS-YU7 3. 播放/暂停:L/R双击功能键操作播放/暂停 9. 加减音量 :R单击功能键音量加 L单击功能键音量减 �. Power on/off: Touch once to activate, then touch and hold for a long time to turn on/off �. Volume increase or decrease: Click the R key to increase the volume, and click the L key to decrease the volume �. Play/Pause: Double-click the L/R function key to operate play/pause Bluetooth Headphones Manual FCC Caution: 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.

CoveredEquipmentAttestationLetter ForCertificationServiceintheUSA FederalCommunicationsCommission EquipmentAuthorizationDivision,ApplicationProcessingBranch 7435OaklandMillsRoad Columbia,MD21048 Towhomitmayconcern PursuanttoSection2.911(d)(5)(i)-(ii)oftheCommission’sRules(47C.F.R.)weattestas followsfortheproductlistedbelow: FCCIDModelname 2BSTZ-YU7OWS-YU7 We, Applicant CompanyName:ShenzhenAolinSiteElectronicCo.,Ltd. Address:Room8A1501,Building8,ZhujiangXujing Jiayuan,WuheCommunity,BantianStreet, LonggangDistrict,ShenzhenCity Phone:13725513670 certifythattheequipmentforwhichauthorizationissoughtisnot“covered”equipment prohibitedfromreceivinganequipmentauthorizationpursuanttosection2.903oftheFCC rules.Thisincludesthecybersecurityandanti-virussoftwareproducedorprovidedby KasperskyLab,Inc.oranyofistsuccessorsandassignees. Wecertifythat,asofthedateofthefilingoftheapplication,theapplicantisnotidentified ontheCoveredListasanentityproducing“covered”equipment. Ifyouhaveanyquestions,pleasefeelfreetocontactusattheaddressshownbelow. Sincerely, 2025-11--24 SignatureDate PrintedNameofSignee:XiaogangLu Company:ShenzhenAolinSiteElectronic Co.,Ltd. Phone:13725513670 Email:[email protected] Address:Room8A1501,Building8,Zhujiang XujingJiayuan,WuheCommunity,Bantian Street,LonggangDistrict,ShenzhenCity Fax:N/A

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 2BSTZ-YU7OWS-YU7 Fortheproductslistedabove,werequestpermanentconfidentialityforallapplicable exhibitsasthereare:  theOperationalDescription  theBlockDiagram theSchematics Theabovelistedexhibitscontaintradesecretsandproprietaryinformationthatcouldbeof benefittoourcompetitors. Ifyouhaveanyquestions,pleasefeelfreetocontactusattheaddressshownbelow. Sincerely, 2025-11-24 SignatureDate PrintedNameofSignee/Title:XiaogangLu/Manager Company:ShenzhenAolinSiteElectronicCo.,Ltd. Address:Room8A1501,Building8,ZhujiangXujingJiayuan,WuheCommunity,Bantian Street,LonggangDistrict,ShenzhenCity Phone:13725513670 Fax:N/A Email:[email protected]

ReportNo.:CISRR251015058 Page 47 of 80 8.EXTERNALANDINTERNALPHOTOS 8.1.ExternalPhotos ReportNo.:CISRR251015058 Page 48 of 80

Label Size:20mm*10mm FCC ID:2BSTZ-YU7 LabelLocation

ReportNo.:CISRR251015058 Page 49 of 80 8.2.InternalPhotos ReportNo.:CISRR251015058 Page 50 of 80 ANT ReportNo.:CISRR251015058 Page 51 of 80

RFExposureevaluation FCCID2BSTZ-YU7 ProductName BluetoothHeadphones ModelNo.OWS-YU7 ListedModel(s)- ExposurecategoryGeneralpopulation/uncontrolledenvironment EUTTypeProductionUnit DeviceTypePortableDevice 1.Reference ANSIC95.1–3999:IEEEStandardforSafetyLevelswithRespecttoHumanExposureto RadioFrequencyElectromagneticFields,3kHzto300GHz. FCCKDBpublication447498D01GeneralRFExposureGuidancev06:MobileandPortable DevicesRFExposureProceduresandEquipmentAuthorizationPolicies. FCCCFR47part11.1310:Radiofrequencyradiationexposurelimits. FCCCFR47part22.1093:Radiofrequencyradiationexposureevaluation:portabledevices 2.Requirement AccordingtoKDB447498D01GeneralRFExposureGuidancev06Section4.3.1Standalone SARtestexclusionconsiderations:“UnlessspecificallyrequiredbythepublishedRFexposure KDBprocedures,standalone1-gheadorbodyand10-gextremitySARevaluationforgeneral populationexposureconditions,bymeasurementornumericalsimulation,isnotrequired whenthecorrespondingSARTestExclusionThresholdcondition,listedbelow,issatisfied. Thesetestexclusionconditionsarebasedonsource-basedtime-averagedmaximum conductedoutputpoweroftheRFchannelrequiringevaluation,adjustedfortune-uptolerance, andtheminimumtestseparationdistancerequiredfortheexposureconditions.22The minimumtestseparationdistanceisdeterminedbythesmallestdistancefromtheantenna andradiatingstructuresoroutersurfaceofthedevice,accordingtothehostformfactor, exposureconditionsandplatformrequirements,toanypartofthebodyorextremityofauser orbystander(see5)ofsection4.1).ToqualifyforSARtestexclusion,thetestseparation distancesappliedmustbefullyexplainedandjustifiedbytheoperatingconfigurationsand exposureconditionsofthetransmitterandapplicablehostplatformrequirements,typicallyin theSARmeasurementorSARanalysisreport,accordingtotherequiredpublishedRF exposureKDBprocedures.WhennootherRFexposuretestingorreportingisrequired,a statementofjustificationandcompliancemustbeincludedintheequipmentapproval,inlieuof theSARreport,toqualifyfortheSARtestexclusion.Whenrequired,thedevicespecific conditionsdescribedintheotherpublishedRFexposureKDBproceduresmustbesatisfied beforeapplyingtheseSARtestexclusionprovisions;forexample,handheldPTTtwo-way radios,handsets,laptops&tabletsetc.23” [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance, mm)]·[√f(GHz)]≤3.0for1-gSARand≤7.5for10-gextremitySAR,where: •f(GHz)istheRFchanneltransmitfrequencyinGHz •PoweranddistanceareroundedtothenearestmWandmmbeforecalculation •Theresultisroundedtoonedecimalplaceforcomparison •3.0and7.5arereferredtoasthenumericthresholdsinthestep2below Thetestexclusionsareapplicableonlywhentheminimumtestseparationdistanceis≤50mm andfortransmissionfrequenciesbetween100MHzand6GHz.Whentheminimumtest separationdistanceis<5mm,adistanceof5mmaccordingto5)insection4.1isappliedto determineSARtestexclusion. Whenoneofthefollowingtestexclusionconditionsissatisfiedforallcombinationsof simultaneoustransmissionconfigurations,furtherequipmentapprovalisnotrequiredto incorporatetransmittermodulesinhostdevicesthatoperateinthemixedmobileandportable hostplatformexposureconditions.Thegranteeisresponsiblefordocumentingthisaccording toClassIpermissivechangerequirements.AntennasthatqualifyforstandaloneSARtest exclusionmustapplytheestimatedstandaloneSARtodeterminesimultaneoustransmission testexclusion. a)The[∑of(thehighestmeasuredorestimatedSARforeachstandaloneantenna configuration,adjustedformaximumtune-uptolerance)/1.6W/kg]+[∑ofMPEratios]is≤ 1.0. b)TheSARtopeaklocationseparationratiosofallsimultaneouslytransmittingantennapairs operatinginportabledeviceexposureconditionsareall≤0.04,andthe[∑ofMPEratios]is≤ 1.0. 3.ConductedPeakOutputPower Left ModulationPacketTypeChannel PeakOutput Power (dBm) PeakOutput Power (mW) GFSKDH5 04.302.69 390.721.18 78-3.870.41 π/4DQPSK2-DH5 05.253.35 391.631.46 78-3.030.50 8DPSK3-DH5 05.823.82 392.231.67 78-2.510.56 Right ModulationPacketTypeChannel PeakOutput Power (dBm) PeakOutput Power (mW) GFSKDH5 04.492.81 390.761.19 78-3.280.47 π/4DQPSK2-DH5 05.333.41 391.611.45 78-2.540.56 8DPSK3-DH5 05.763.77 391.991.58 78-2.130.61 4.ManufacturingTolerance Left DH5 ChannelChannel0Channel39Channel78 Target(dBm)40-3 Tolerance±(dB)1.01.01.0 2-DH5 ChannelChannel0Channel39Channel78 Target(dBm)51-3 Tolerance±(dB)1.01.01.0 3-DH5 ChannelChannel0Channel39Channel78 Target(dBm)52-2 Tolerance±(dB)1.01.01.0 Right： DH5 ChannelChannel0Channel39Channel78 Target(dBm)40-3 Tolerance±(dB)1.01.01.0 2-DH5 ChannelChannel0Channel39Channel78 Target(dBm)51-3 Tolerance±(dB)1.01.01.0 3-DH5 ChannelChannel0Channel39Channel78 Target(dBm)52-2 Tolerance±(dB)1.01.01.0 5.EvaluationResult EUTBand/Modef(GHz) Antenna Distance (mm) RFoutputpower SARTest Exclusion Threshold SARTest Exclusion dBmmW LeftBR/EDR2.402563.981.234<3.0Yes RightBR/EDR2.402563.981.234<3.0 Remark: 1.Outputpowerincludingtuneuptolerance; 2.Whentheminimumtestseparationdistanceis<5mm,adistanceof5mmaccordingtof)in section4.1isappliedtodetermineSARtestexclusion. 3.TheBluetoothheadsetscontaintwoparts:leftearbudandrightearbud.theshematicis samebutPCBboardismirrorimage,bothleftandrightearbudsaretestedseprately,and thesetwoearbudscouldbesimultaneoustransmission. 4.simultaneoustransmissionResultseeChapter6. 6.SimultaneousTransmissionforSARExclusion standaloneSARvalue=[(max.powerofchannel,includingtune-uptolerance,mW)/(min.test separationdistance,mm)]·[√f(GHz)/x];whereX=7.5for1-gSARandx=18.75for10-gSAR SARANT0=3.98mw/5mm*[√f(2.402GHz)/7.5]=0.16449 SARANT1=3.98mw/5mm*[√f(2.402GHz)/7.5]=0.16449 AntennasthatqualifyforstandaloneSARtestexclusionmustapplytheestimatedstandalone SARto determinesimultaneoustransmissiontestexclusion: The[Σof(thehighestmeasuredorestimatedSARforeachstandaloneantennaconfiguration, adjustedformaximumtune-uptolerance)/1.6W/kg]+[ΣofMPEratios]is≤1.0. Result:∑of(thehighestmeasuredorestimatedSARANT0+SARANT1)/1.6= (0.16449+0.16449)/1.6=0.20561<1.0; 7.Conclusion ThemeasurementresultscomplywiththeFCCLimitper47CFR2.1093fortheuncontrolled RFExposureandSARExclusionThresholdperKDB447498D…

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2.4GHz1608ChipAntenna:RANT1608F245C04 _ Application: WLAN,802.11b/g,Bluetooth,WLAN,etc... Features SMD,highreliability,ultraImpact,Omni-directional... PartnumberInformation RANT1608F245C04 (A)(B)(C)(D)(E)(F) ElectricalSpecification DimensionandTerminalConfiguration No.TerminalName 1Feeding/GNG 2GND/Feeding (A)ProductTypeChipAntenna (B)SizeCode 1.6x0.8mm( ± 0.1mm) (C)MaterialHighKmaterial (D)Frequency2.4~2.5GHz (E)FeedingmodePIFA&SingleFeeding (F)AntennatypeType=04 WorkingFrequencyRange2400~2500MHz Bandwidth120MHz(Min.) PeakGain2.7dBi(Typ.) Impedance50Ohm Returnloss10dB(Min) PolarizationLinear AzimuthBeamwidthOmni-directional OperationTemperature( °C )-40~85 °C ResistancetoSolderingHeats 10sec.(@280 °C ) TerminationNi/Au(Leadless) Dimension(mm) L 1.60±0.10 W 0.80 ± 0.10 T 0.80 ± 0.10 Add:Room 707, Building F, Tongan Zhichuangyuan, xixiang street, Baoan District, Shenzhen. 2.4GHz1608ChipAntenna:RANT1608F245C04 _ 1 EvaluationBoardReference PCBDimensionAntennaLayoutReference Unit:mm ElectricalCharacteristics ReturnLoss&Radiation ELECTRICALCHARACTERISTICSS11 Radiation ElectricalCharacteristics Freque ncy EfficPercenGain 2400-1.6472.27%2.38 2450-1.3375.34%2.7 2500-1.5972.98%2.59 Add:Room 707, Building F, Tongan Zhichuangyuan, xixiang street, Baoan District, Shenzhen. 2.4GHz1608ChipAntenna:RANT1608F245C04 _ TapingSpecifications ReelandTapingSpecification ReelSpecification TYPESIZEABCD 16087”4K/Reel 4.0±0.5 4.0±213.5±0.5178±2 TappingSpecification PackagingTypeABWEFGHTψDP PaperType1608 1.90±0.203.50±0.208.0±0.201.75±0.103.5±0.054.0±0.102.0±0.050.75±0.10 1.50±0.10 4.0±0.1 Add:Room 707, Building F, Tongan Zhichuangyuan, xixiang street, Baoan District, Shenzhen. 2.4GHz1608ChipAntenna:RANT1608F245C04 _ ReliabilityTable TestItemProcedure Requirements CeramicType Remark (Reference) Electrical Characterization Fulfilltheelectrical specification UserSpec. Thermal Shock 1.Preconditioning: 50±10°C/1hr,thenkeepfor24±1hrsatroomtemp. 2.Initialmeasure:Spec:referInitialspec. 3.Rapidchangeoftemperaturetest: -30°Cto+85°C;100cycles; 15minutesatLowercategorytemperature; 15minutesatUppercategorytemperature. NoVisibleDamage. Fulfilltheelectrical specification. MIL-STD-202 107 Temperature Cycling 1.Initialmeasure:Spec:referInitialspec. 2.100Cycles(-30°Cto+85°C),SoakMode=1(2Cycle/hours). 3.Measurementat24±2Hoursaftertestcondition. NoVisibleDamage. Fulfilltheelectrical specification. JESD22 JA104 HighTemperature Exposure 1.Initialmeasure:Spec:referInitialspec. 2.Unpowered;500hours@T=+85°C. 3.Measurementat24±2hoursaftertest. NoVisibleDamage. Fulfilltheelectrical specification. MIL-STD-202 108 LowTemperature Storage 1.Initialmeasure:Spec:referInitialspec. 2.Unpowered:500hours@T=-30°C. 3.Measurementat24±2hoursaftertest. NoVisibleDamage. Fulfilltheelectrical specification. MIL-STD-202 108 Solderability (SMDBottomSide) Dippingmethod: a.Temperature:235±5°C b.Dippingtime:3±0.5s Thesoldershouldcover over95%ofthecritical areaofbottomside. IEC60384-21/22 4.10 SolderingHeat Resistance (RSH) Preheatingtemperature:150±10°C. Preheatingtime:1~2min. Soldertemperature:260±5°C. Dippingtime:5±0.5s NoVisibleDamage.IEC60384-21/22 4.10 Vibration5g'sfor20min.,12cycleseachof3orientations Note:Use8"X5"PCB.031"thick7securepointson,onelong sideand2securepointsatcornersofoppositesides.Parts mountedwithin2"fromanysecurepoint.Testfrom10-2000 Hz. NoVisibleDamage.MIL-STD-202 Method204 Mechanical Shock Threeshocksineachdirectionshallbeappliedalongthethree mutuallyperpendicularaxesofthetestspecimen(18shocks) Peakvalue:1,500g’s Duration:0.5ms Velocitychange:15.4ft/s Waveform:Half-sine NoVisibleDamage.MIL-STD-202 Method213 Humidity Bias 1.Humidity:85%R.H.,Temperature:85±2°C. 2.Time:500±24hours. 3.Measurementat24±2hrsaftertestcondition. NoVisibleDamage. Fulfilltheelectrical specification. MIL-STD-202 Method106 Add:Room 707, Building F, Tongan Zhichuangyuan, xixiang street, Baoan District, Shenzhen. 2.4GHz 1 6 0 8 Chip Antenna: RANT1608F245C04 _ Board Flex (SMD) 1.Mountingmethod: IR-Reflow.PCBSize(L:100×W:40×T:1.6mm) 2.Applytheloadindirectionofthearrowuntilbendingreaches 2mm. NoVisibleDamage.AEC-Q200 005 AdhesionForceof1.8Kgfor60seconds.NoVisibleDamage Magnificationof20Xor greatermaybeemployed forinspectionofthe mechanicalintegrityofthe devicebodyterminalsand body/terminaljunction. AEC-Q200 006 Physical Dimension Anyapplicablemethodusingx10magnification,micrometers, calipers,gauges,contourprojectors,orothermeasuring equipment,capableofdeterminingtheactualspecimen dimensions. Inaccordancewith specification. JESD22 JB100 RevisionHistory RevisionDateContent 12019/03/01NewDatasheet 22020/02/22Add2Dradiationcharacteristic Add:Room 707, Building F, Tongan Zhichuangyuan, xixiang street, Baoan District, Shenzhen.

ReportNo.:CISRR251015058 Thetestresultsrelateonlytothetestedsamples. ThetestreportshouldnotbereproducedexceptinfullwithoutthewrittenapprovalofShenzhenBangce TestingTechnologyCo.,Ltd. Page1of73 TESTREPORT ReportNo.CISRR251015058 ProjectNo.CISR251015058 FCCID2BSTZ-YU7 ApplicantShenzhenAolinSiteElectronicCo.,Ltd. Address Room8A1501,Building8,ZhujiangXujingJiayuan,WuheCommunity, BantianStreet,LonggangDistrict,ShenzhenCity ManufacturerShenzhenAolinSiteElectronicCo.,Ltd. Address Room8A1501,Building8,ZhujiangXujingJiayuan,WuheCommunity, BantianStreet,LonggangDistrict,ShenzhenCity ProductNameBluetoothHeadphones Trademark- Model/TypereferenceOWS-YU7 ListedModel(s)- Standard 47CFRPart15.247 DateofsamplereceiptOctober16,2025 TestdateOctober16,2025toOctober18,2025 IssuedateOctober22,2025 TestresultComplied Reviewedby:LucasHuang Approvedby:HansHu ReportNo.:CISRR251015058 Page 2 of 73 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...........................................................................................................................8 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 6.2.2.20dBBandwidth......................................................................................................................................15 6.2.3.MaximumConductedOutputPower.....................................................................................................17 6.2.4.ChannelSeparation................................................................................................................................18 6.2.5.NumberofHoppingFrequencies..........................................................................................................19 6.2.6.DwellTime...............................................................................................................................................20 6.2.7.Conductedbandedgeandspuriousemission...................................................................................22 6.2.8.Radiatedbandedgeemission...............................................................................................................24 6.2.9.RadiatedSpuriousEmission(below1GHz).........................................................................................30 6.2.10.RadiatedSpuriousEmission(Above1GHz)......................................................................................36 7.APPENDIXREPORT......................................................................................................................................45 7.1.DutyCycle..................................................................................................................................................45 7.2.DwellTime..................................................................................................................................................49 7.3.NumberOfHoppingChannel.........................................…

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ReportNo.:CISRR251015058 Page 45 of 80 7.TESTSETUPPHOTOS ConductedEmissionatACpowerline Radiatedbandedgeemission RadiatedSpuriousEmission(Above1GHz) ReportNo.:CISRR251015058 Page 46 of 80 RadiatedSpuriousEmission(below1GHz)