2BQQD-T06Bone conduction Bluetooth headphones

Bone conduction Bluetooth headphones FCCRequirement Anychangesormodificationsnotexpresslyapprovedbythepartyresponsibleforcompliancecould voidtheuser ’ sauthoritytooperatetheequipment. ThisdevicecomplieswithPart15oftheFCCRules.Operationissubjecttothefollowingtwo conditions: (1)thisdevicemaynotcauseharmfulinterference,and (2)thisdevicemustacceptanyinterferencereceived,includinginterferencethatmaycause undesiredoperation. 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.

Due Diligence Letter For Certification Service in the USA Federal Communications Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern FCC ID Model name 2BQQD-T06 TO6, TO1, TO7, TO8, TO9, T11, T13, T15, T17, T19, T21, T23, T25, T27, T29T31, T33, T35, T37, T39, T41, T43, T45, T47, T49, T51, T53, T55, T67, T59, T61, T63, T65, T67, T69, T71, T73, T75, T77, T79, T81, T83, T85, T87, T89, T91, T93, T95, T97, T99 Pursuant to KDB 986446 D01 Covered Equipment Guidance the evaluation of the product above shows compliance for the following reasons: Compliance Evaluation process Results Inherent compliance The chipset(s) used is not capable of running the cybersecurity and/or anti-virus software Compliance The memory used does not allow the running the cybersecurity and/or anti-virus software Compliance The storage capacity does not allow the running the cybersecurity and/or anti-virus software Compliance The operating system used is not capable of running the cybersecurity and/or anti-virus software Compliance No inherent compliance Based on software bill of material Based on scan for running software on the device Based on filesystem scan for cybersecurity and/or anti-virus software The equipment for which authorization is sought complies with the rules and fulfils the requirements as detailed in the above mentioned KDB. Evaluation performed by Company Name: Shenzhen Huaxia Testing Technology Co., Ltd Contact Name: Yoyo Zhou Address: 1F., Block A of Tongsheng Technology Building, Huahui Road, Dalang Street, Longhua District, Shenzhen, China Phone: +86-755-26648642 Email: [email protected] Signature: Date: 2025-11-11

Externalphotos FCC ID: 2BQQD-T06

Size:24.7*5.7MM

Internalphotos FCC ID: 2BQQD-T06 ANT

ShenzhenHuaxiaTestingTechnologyCo.,Ltd 1F.,BlockAofTongshengTechnologyBuilding,HuahuiRoad,DalangStreet,LonghuaDistrict, Shenzhen,China Telephone:+86-755-26648640 Fax:+86-755-26648637 Website:www.cqa-cert.com ReportTemplateVersion:V05 ReportTemplateRevisionDate:2021-11-03 RFExposureEvaluationReport Thetestreportiseffectiveonlywithbothsignatureandspecializedstamp,Theresult(s)showninthisreportreferonlyto thesample(s)tested.WithoutwrittenapprovalofCQA,thisreportcan’tbereproducedexceptinfull. ReportNo.:CQASZ20251002369E-02 Applicant:ShenzhenFanyinYueshengTechnologyCo.,Ltd. AddressofApplicant:Room2109,Building4,PhaseII,Tian'anCloudValleyIndustrialPark,Gangtou, BantianSt,LonggangDist,Shenzhen EquipmentUnderTest(EUT): EUTName:BoneconductionBluetoothheadphones ModelNo.:T06,T01,T07,T08,T09,T11,T13,T15,T17,T19,T21,T23,T25,T27,T29, T31,T33,T35,T37,T39,T41,T43,T45,T47,T49,T51,T53,T55,T57,T59, T61,T63,T65,T67,T69,T71,T73,T75,T77,T79,T81,T83,T85,T87,T89, T91,T93,T95,T97,T99 TestModelNo.:T06 BrandName:N/A FCCID:2BQQD-T06 Standards: 47CFRPart1.1307 47CFRPart2.1093 KDB447498D04InterimGeneralRFExposureGuidancev01 DateofReceipt:2025-10-14 DateofTest: 2025-10-14to2025-10-21 DateofIssue:2025-12-5 TestResult:PASS* *Intheconfigurationtested,theEUTcompliedwiththestandardsspecifiedabove. TestedBy: (LewisZhou) ReviewedBy: (TimoLei) ApprovedBy: (JackAi) ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20251002369E-02 Page:2of7 1Version RevisionHistoryOfReport ReportNo.Version Description IssueDate CQASZ20251002369E-02Rev.01 Initialreport 2025-12-5 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20251002369E-02 Page:3of7 2Contents Page 1VERSION............................................................................................................................................................................2 2CONTENTS........................................................................................................................................................................3 ..................................................................................................................................................................................................3 3GENERALINFORMATION..............................................................................................................................................4 3.1CLIENTINFORMATION...................................................................................................................................................4 3.2GENERALDESCRIPTIONOFEUT...................................................................................................................................4 3.3GENERALDESCRIPTIONOFBT......................................................................................................................................4 4SAREVALUATION...........................................................................................................................................................5 4.1RFEXPOSURECOMPLIANCEREQUIREMENT.................................................................................................................5 4.1.1StandardRequirement......................................................................................................................................5 4.1.2Limits....................................................................................................................................................................5 4.1.3EUTRFExposure..............................................................................................................................................7 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20251002369E-02 Page:4of7 3GeneralInformation 3.1ClientInformation Applicant:ShenzhenFanyinYueshengTechnologyCo.,Ltd. AddressofApplicant:Room2109,Building4,PhaseII,Tian'anCloudValleyIndustrialPark, Gangtou,BantianSt,LonggangDist,Shenzhen Manufacturer:ShenzhenFanyinYueshengTechnologyCo.,Ltd. AddressofManufacturer:Room2109,Building4,PhaseII,Tian'anCloudValleyIndustrialPark, Gangtou,BantianSt,LonggangDist,Shenzhen Factory:ShenzhenFanyinYueshengTechnologyCo.,Ltd. AddressofFactory:Room2109,Building4,PhaseII,Tian'anCloudValleyIndustrialPark, Gangtou,BantianSt,LonggangDist,Shenzhen 3.2GeneralDescriptionofEUT ProductName: BoneconductionBluetoothheadphones ModelNo.: T06,T01,T07,T08,T09,T11,T13,T15,T17,T19,T21,T23,T25,T27,T29, T31,T33,T35,T37,T39,T41,T43,T45,T47,T49,T51,T53,T55,T57,T59, T61,T63,T65,T67,T69,T71,T73,T75,T77,T79,T81,T83,T85,T87,T89, T91,T93,T95,T97,T99 TestModelNo.: T06 TradeMark: N/A SoftwareVersion: V1.0 HardwareVersion: V1.0 PowerSupply: Li-ionbattery:DC3.7V180mAh,ChargebyDC5Vforadapter Note: ModelNo.:T06,T01,T07,T08,T09,T11,T13,T15,T17,T19,T21,T23,T25,T27,T29, T31,T33,T35,T37,T39,T41,T43,T45,T47,T49,T51,T53,T55,T57,T59, T61,T63,T65,T67,T69,T71,T73,T75,T77,T79,T81,T83,T85,T87,T89, T91,T93,T95,T97,T99 Thecircuitdesign,layout,componentsusedandinternalwiringareallthesame,exceptfortheappearance difference. 3.3GeneralDescriptionofBT OperationFrequency:2402MHz~2480MHz ModulationType:GFSK,π/4DQPSK TransferRate:1Mbps/2Mbps NumberofChannel:79 ProductType:MobilePortableFixLocation AntennaType: Chipantenna AntennaGain: 1.7dBi ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20251002369E-02 Page:5of7 4SAREvaluation 4.1RFExposureComplianceRequirement 4.1.1StandardRequirement 447498D04InterimGeneralRFExposureGuidancev01 3.2.SARTestReductionGuidance SARtestreductionprocedures[Glossary]allowusingaparticularsetoftestdataasrepresentative ofother,similar,testconditions.Thismaybeappliedfordatawithindifferenttestpositions(e.g.body, head,extremity),wirelessmodes(e.g.Wi-Fi,cellular),andfrequencybands.Thistestreductionprocess providesfortheuseoftestdataforonespecificchannel,whilereferencingtothosedatafordemonstrating complianceinotherrequiredchannelsforeachtestpositionofanexposurecondition,withintheoperating modeofafrequencyband.Thisislimit…

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2.4GHz 2012 Chip Antenna: RANT2012F245X6 Dimension(mm) L2.05+-0.15 W1.20+-0.15 T0.65+-0.10 No.TerminalName 1Feeding/GNG 2GND Application: WLAN,802.11b/g,Bluetooth,WLAN,etc... Features SMD,highreliability,ultraImpact,Omni-directional... PartnumberInformation RANT2012F245X6 (A)(B)(C)(D)(E)(F) (A)ProductTypeChipAntenna (B)SizeCode2.0x1.2mm(+-0.2mm) (C)MaterialHighKmaterial (D)Frequency2.4~2.5GHz (E)FeedingmodePIFA&SingleFeeding (F)AntennatypeType=6 ElectricalSpecification WorkingFrequencyRange2400~2484MHz Bandwidth84(Min.) PeakGain1.7dBi(Typ.) Impedance50Ohm Returnloss10dB(Min) PolarizationLinear AzimuthBeamwidthOmni-directional OperationTemperature( °C )-40~85 °C ResistancetoSolderingHeats 10sec.(@280°C) TerminationNi/Au(Leadless) ThespecificationisdefinedonEVB. DimensionandTerminalConfiguration 咏成國際科技有限公司電話:13530576606 RAIN International Technology Co., Ltd. Add:Room 707, Building F, Tongan Zhichuangyuan, xixiang street, Baoan District, Shenzhen. 2.4GHz2012ChipAntenna:RANT2012F245X6 EvaluationBoardReference PCBDimensionAntennaLayoutReference Unit:mm ElectricalCharacteristics ReturnLoss ReturnLoss&Radiation 1 Frequency(MHz) S11(dB) 2400-10.77 2450-24.81 2484-10.243 Radiation Z Y X 2400MHz2450MHz2500MHz Efficiency70.56%75.25%71.01% 2.4GHz2012ChipAntenna:RANT2012F245X6 TapingSpecifications ReelandTapingSpecification ReelSpecification TYPESIZEABCD 20127”5K/Reel 9.0±0.5 60±213.5±0.5178±2 TappingSpecification PackagingTypeABWEFGHTDP PaperType2012 1.50±0.202.30±0.208.0±0.201.75±0.103.5±0.054.0±0.102.0±0.050.75±0.101.57±0.104.0±0.1 2.4GHz2012ChipAntenna:RANT2012F245X6 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 2.4GHz2012ChipAntenna:RANT2012F245X6 2.4GHz2012ChipAntenna:RANT2012F245X6 _ 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 12020/10/15NewDatasheet

ShenzhenHuaxiaTestingTechnologyCo.,Ltd. 1F.,BlockAofTongshengTechnologyBuilding,HuahuiRoad,DalangStreet,LonghuaDistrict, Shenzhen,China Telephone:+86-755-26648640 Fax:+86-755-26648637 Website:www.cqa-cert.com ReportTemplateVersion:V05 ReportTemplateRevisionDate:2021-11-03 TestReport Thetestreportiseffectiveonlywithbothsignatureandspecializedstamp,Theresult(s)showninthisreportreferonlyto thesample(s)tested.WithoutwrittenapprovalofCQA,thisreportcan’tbereproducedexceptinfull. ReportNo.:CQASZ20251002369E-01 Applicant:ShenzhenFanyinYueshengTechnologyCo.,Ltd. AddressofApplicant:Room2109,Building4,PhaseII,Tian'anCloudValleyIndustrialPark,Gangtou, BantianSt,LonggangDist,Shenzhen EquipmentUnderTest(EUT): Product: BoneconductionBluetoothheadphones ModelNo.: T06,T01,T07,T08,T09,T11,T13,T15,T17,T19,T21,T23,T25,T27,T29, T31,T33,T35,T37,T39,T41,T43,T45,T47,T49,T51,T53,T55,T57,T59, T61,T63,T65,T67,T69,T71,T73,T75,T77,T79,T81,T83,T85,T87,T89, T91,T93,T95,T97,T99 TestModelNo.:T06 BrandName: N/A FCCID: 2BQQD-T06 Standards:47CFRPart15,SubpartC KDB558074D0115.247MeasGuidancev05r02 ANSIC63.10:2020 DateofReceipt:2025-10-14 DateofTest: 2025-10-14to2025-10-21 DateofIssue:2025-12-5. TestResult:PASS* *Intheconfigurationtested,theEUTcompliedwiththestandardsspecifiedabove. TestedBy: (LewisZhou) ReviewedBy: (TimoLei) ApprovedBy: (JackAi) ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20251002369E-01 Page:2of71 1Version RevisionHistoryOfReport ReportNo.Version Description IssueDate CQASZ20251002369E-01Rev.01 Initialreport 2025-12-5 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20251002369E-01 Page:3of71 2TestSummary TestItemTestRequirementTestmethodResult AntennaRequirement47CFRPart15.203/PASS ACPowerLineConducted Emission 47CFRPart15,SubpartCSection 15.207 ANSIC63.10-2020PASS ConductedPeakOutput Power 47CFRPart15.247ANSIC63.10-2020PASS 20dBOccupiedBandwidth47CFRPart15.247ANSIC63.10-2020PASS CarrierFrequencies Separation 47CFRPart15.247ANSIC63.10-2020PASS HoppingChannelNumber47CFRPart15.247ANSIC63.10-2020PASS DwellTime47CFRPart15.247ANSIC63.10-2020PASS PseudorandomFrequency HoppingSequence 47CFRPart15.247ANSIC63.10-2020PASS Band-edgeforRF ConductedEmissions 47CFRPart15.247ANSIC63.10-2020PASS RFConductedSpurious Emissions 47CFRPart15.247ANSIC63.10-2020PASS RadiatedSpurious emissions 47CFRPart15.209ANSIC63.10-2020PASS Restrictedbandsaround fundamentalfrequency (RadiatedEmission) 47CFRPart15.205/15.209ANSIC63.10-2020PASS Remark: Thetestedsample(s)andthesampleinformationareprovidedbytheclient. Tx:InthiswholereportTx(ortx)meansTransmitter. Rx:InthiswholereportRx(orrx)meansReceiver. RF:InthiswholereportRFmeansRadiatedFrequency. CH:InthiswholereportCHmeanschannel. Volt:InthiswholereportVoltmeansVoltage. Temp:InthiswholereportTempmeansTemperature. Humid:InthiswholereportHumidmeanshumidity. Press:InthiswholereportPressmeansPressure. N/A:Inthiswholereportnotapplication ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20251002369E-01 Page:4of71 3Contents Page 1VERSION..........................................................................................................................................................................2 2TESTSUMMARY............................................................................................................................................................3 3CONTENTS......................................................................................................................................................................4 4GENERALINFORMATION...........................................................................................................................................5 4.1CLIENTINFORMATION.................................................................................................................................................5 4.2GENERALDESCRIPTIONOFEUT.................................................................................................................................5 4.3ADDITIONALINSTRUCTIONS........................................................................................................................................8 4.4TESTENVIRONMENT...................................................................................................................................................9 4.5DESCRIPTIONOFSUPPORTUNITS...............................................................................................................................9 4.6TESTCONFIGURATION................................................................................................................................................9 4.7STATEMENTOFTHEMEASUREMENTUNCERTAINTY..................................................................................................10 4.8TESTLOCATION........................................................................................................................................................11 4.9TESTFACILITY..........................................................................................................................................................11 4.10ABNORMALITIESFROMSTANDARDCONDITIONS....................................................................................................11 4.11OTHERINFORMATIONREQUESTEDBYTHECUSTOMER..........................................................................................11 4.12EQUIPMENTLIST.....................................................................................................................................................12 5TESTRESULTSANDMEASUREMENTDATA.....................................................................................................13 5.1ANTENNAREQUIREMENT..........................................................................................................................................13 5.2CONDUCTEDEMISSIONS...............................................................................................…

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ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20251002369E-01 Page:46of71 5.9SpuriousRFConductedEmissions TestRequirement:47CFRPart15CSection15.247(d) TestMethod:ANSIC63.10:2020 TestSetup: Remark:Offset=cableloss+attenuationfactor. Limit:Inany100kHzbandwidthoutsidethefrequencybandinwhichthespread spectrumintentionalradiatorisoperating,theradiofrequencypowerthatis producedbytheintentionalradiatorshallbeatleast20dBbelowthatinthe 100kHzbandwidthwithinthebandthatcontainsthehighestlevelofthe desiredpower,basedoneitheranRFconductedoraradiated measurement. ExploratoryTestMode:Non-hoppingtransmittingwithallkindofmodulationandallkindofdatatype FinalTestMode:ThroughPre-scan,findtheDH5ofdatatypeistheworstcaseofGFSK modulationtype,2-DH5ofdatatypeistheworstcaseofπ/4DQPSK modulationtype,3-DH5ofdatatypeistheworstcaseof8DPSKmodulation type. TestResults:Pass ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20251002369E-01 Page:47of71 DH5_Ant1_2402_0~Reference DH5_Ant1_2402_30~1000 DH5_Ant1_2402_1000~26500 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20251002369E-01 Page:48of71 DH5_Ant1_2441_0~Reference DH5_Ant1_2441_30~1000 DH5_Ant1_2441_1000~26500 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20251002369E-01 Page:49of71 DH5_Ant1_2480_0~Reference DH5_Ant1_2480_30~1000 DH5_Ant1_2480_1000~26500 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20251002369E-01 Page:50of71 2DH5_Ant1_2402_0~Reference 2DH5_Ant1_2402_30~1000 2DH5_Ant1_2402_1000~26500 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20251002369E-01 Page:51of71 2DH5_Ant1_2441_0~Reference 2DH5_Ant1_2441_30~1000 2DH5_Ant1_2441_1000~26500 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20251002369E-01 Page:52of71 2DH5_Ant1_2480_0~Reference 2DH5_Ant1_2480_30~1000 2DH5_Ant1_2480_1000~26500 ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20251002369E-01 Page:53of71 Remark: Pretest9kHzto25GHz,findthehighestpointwhentesting,soonlytheworstdatawereshowninthetest report.PerFCCPart15.33(a)and15.31(o),Theamplitudeofspuriousemissionsfromintentionalradiators whichareattenuatedmorethan20dBbelowthepermissiblevalueneednotbereportedunlessspecifically requiredelsewhereinthispart. ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20251002369E-01 Page:54of71 5.10 OtherrequirementsFrequencyHoppingSpreadSpectrumSystem TestRequirement:47CFRPart15CSection15.247(a)(1),(h)requirement: Thesystemshallhoptochannelfrequenciesthatareselectedatthesystemhopping ratefromaPseudorandomorderedlistofhoppingfrequencies.Eachfrequencymustbeusedequally ontheaveragebyeachtransmitter.Thesystemreceiversshallhaveinputbandwidthsthatmatchthe hoppingchannelbandwidthsoftheircorrespondingtransmittersandshallshiftfrequenciesin synchronizationwiththetransmittedsignals. Frequencyhoppingspreadspectrumsystemsarenotrequiredtoemployallavailablehopping channelsduringeachtransmission.However,thesystem,consistingofboththetransmitterandthe receiver,mustbedesignedtocomplywithalloftheregulationsinthissectionshouldthe transmitterbepresentedwithacontinuousdata(orinformation)stream.Inaddition,asystem employingshorttransmissionburstsmustcomplywiththedefinitionofafrequencyhoppingsystem andmustdistributeitstransmissionsovertheminimumnumberofhoppingchannelsspecifiedin thissection. Theincorporationofintelligencewithinafrequencyhoppingspreadspectrumsystemthatpermits thesystemtorecognizeotheruserswithinthespectrumbandsothatitindividuallyand independentlychoosesandadaptsitshopsetstoavoidhoppingonoccupiedchannelsispermitted. Thecoordinationoffrequencyhoppingsystemsinanyothermannerfortheexpresspurposeof avoidingthesimultaneousoccupancyofindividualhoppingfrequenciesbymultipletransmittersis notpermitted. Complianceforsection15.247(a)(1) AccordingtoBluetoothCoreSpecification,thepseudorandomsequencemaybegeneratedinanine- stageshiftregisterwhose5thand9thstage outputsareaddedinamodulo-twoadditionstage.Andtheresultisfedbacktotheinputofthefirst stage.ThesequencebeginswiththefirstONEof9consecutiveONEs;i.e.theshiftregisterisinitialized withnineones. •Numberofshiftregisterstages:9 •Lengthofpseudo-randomsequence:2 9 -1=511bits •Longestsequenceofzeros:8(non-invertedsignal) AnexampleofPseudorandomFrequencyHoppingSequenceasfollow: Eachfrequencyusedequallyontheaveragebyeachtransmitter. AccordingtoBluetoothCoreSpecification,BluetoothreceiversaredesignedtohaveinputandIF bandwidthsthatmatchthehoppingchannelbandwidthsofanyBluetoothtransmittersandshift frequenciesinsynchronizationwiththetransmittedsignals. Complianceforsection15.247(g) AccordingtoBluetoothCoreSpecification,theBluetoothsystemtransmitsthepacketwiththe pseudorandomhoppingfrequencywithacontinuousdataandtheshortbursttransmissionfromthe Bluetoothsystemisalsotransmittedunderthefrequencyhoppingsystemwiththepseudorandom hoppingfrequencysystem. ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20251002369E-01 Page:55of71 Complianceforsection15.247(h) AccordingtoBluetoothCorespecification,theBluetoothsystemincorporateswithanadaptive systemtodetectotheruserwithinthespectrumbandsothatitindividuallyandindependentlyto avoidhoppingontheoccupiedchannels. AccordingtotheBluetoothCorespecification,theBluetoothsystemisdesignednothavetheability tocoordinatedwithotherFHSSSysteminanefforttoavoidthesimultaneousoccupancyofindividual hoppingfrequenciesbymultipletransmitter. ShenzhenHuaxiaTestingTechnologyCo.,Ltd. ReportNo.:CQASZ20251002369E-01 Page:56of71 5.11 RadiatedSpuriousEmission&Restrictedbands TestRequirement:47CFRPart15CSection15.209and15.205 TestMethod:ANSIC63.10:2020 TestSite:MeasurementDistance:3m(Semi-AnechoicChamber) ReceiverSetup: FrequencyDetectorRBWVBWRemark 0.009MHz-0.090MHzPeak10kHz30kHzPeak 0.009MHz-0.090MHzAverage10kHz30kHzAverage 0.090MHz-0.110MHzQuasi-peak10kHz30kHzQuasi-peak 0.110MHz-0.490MHzPeak10kHz30kHzPeak 0.110MHz-0.490MHzAverage10kHz30kHzAverage 0.490MHz-30MHzQuasi-peak10kHz30kHzQuasi-peak 30MHz-1GHzPeak120kHz300kHzPeak Above1GHz Peak1MHz3MHzPeak Peak1MHz10HzAverage Limit: Frequency Fieldstrength (microvolt/…

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Setupphotos 1Photographs-EUTTestSetup 1.1RadiatedEmission 9KHz~30MHz: 30MHz~1GHz: FCC ID: 2BQQD-T06 Above1GHz: 1.2ConductedEmission 1.3RFConductedmeasurement