2ARQZ-M100Wireless Bone Conduction Headphone

WirelessBoneConductionHeadphone USERGUIDE Specifications PairingName:M100 BluetoothSpecification:V5.1,dualmode,downwardcompatible. FrequencyRange:2.4GHz-2.480GHz SupportedProtocols:A2DP,AVRCP,HFP,AAC,etc. TwoBluetoothdevicescanbeconnectedatthesametime. TransmissionDistance:upto30meters(Transmissiondistancevariesdependingonthe environmentandBluetoothdevice) MaximumTalk/PlayTime(70%Volume):6hours StandbyTime:200hours WorkingTemperature:0°Cto45°C Speaker: Frequency:300Hz-9KHz,Hi-fi Distortion:≦1% SoundChannel:Stereo Microphone: Dualmicrophonenoisereductiontechnology HeadsetBattery: Type:Lithium-ionpolymer BatteryCapacity:180mAh ChargingVoltage:5VDC(≤24V) LifeTime:Minimumrecharging1000times OperatingTemperature:-10°Cto+60°C ChargingTime:1.5hours ChargingInterface:TypeCUSB WaterproofRating:IPx6 NetWeight:38g WearingInstruction: Asshowninbelowpicture,hangtheheadphoneonyourears,restthebone conductiontransducersonthecheekbonesinfrontofyourears.Pleasedonot hangthetransducersonyourears. ButtonFunction: ButtonFunctionAction PlusButton PoweronPressplusbuttonandholdonfor4seconds PoweroffPressplusbuttonandholdfor4seconds VolumeupQuickpressplusbutton1x NextsongPressplusbuttonfor2seconds MinusButton VolumedownQuickpressplusbutton1x LastsongPressbuttonfor2seconds Multi-functionButton (MFB) Pause/PlayQuickpressMFB1xwhenplayingmusic RedialacallDoublepressMFBtodialthelastcall AnswercallQuickpressMFB1xwhenmobilecallcoming EndcallShortpressMFBduringacall Rejectacall PressMFBfor2secondstorejectmobilecalls. Torejectthesecondincomingcallwhenonthefirst call,pressMFBfor2seconds. Athree-partycall QuickpressMFBtoanswerthe2ndincomingcall andhangupthe1 st call. DoublepressMFBtoanswera2ndincomingcall andreservethe1 st call. PressMFBfor2secondstokeepthecurrentcall andrejectthenewcall Duringathree-partycall,doublepressMFBto switchbetweenthecurrentcallandthereserved call. Duringathree-partycall,quickpressMFBtoend currentcallandmeanwhileswitchtotheothercall, pressMFBagaintoendthe2 nd call. PromptToneIntroduction HeadsetStatusTone PowerOnPoweron PowerOffPoweroff PairingModePairing PairingSuccessfullyConnected BatteryLow“toot”every10seconds HeadsetLEDIndicators HeadsetStatusLEDStatus PairingModeLightflashesblueandredalternately PairingSuccessfullyBluelightflashesevery10secondsinthe stateofbreathing BatteryLowLightflashesredrapidly ChargingModeRedlightcontinuouslyon FullyChargedBluelightcontinuouslyon AudioStatusBluelightflashesevery10secondsinthe stateofbreathing CallComingRedlightflashesevery3seconds Call(Busy)StatusBluelightflashesevery10seconds PairingwithBluetoothDevice 1.Besurethatyoursmartphone,laptopordeskphonehasBluetoothfunction. 2.ActivatetheBluetoothfunctiononyoursmartphone,laptopordeskphone. 3.Turnonyourheadphone(Pressplusbuttonandholdonfor4seconds),youcanhearprompt tone”poweron”. TheLedindicatorwillflashredandbluealternately,whichindicatestheheadsetisinpairing mode. 4.(Ifpairingfails,theheadsetwillpoweroffautomaticallyaftertheindicatorflashes10 minutes,withprompttone“poweroff”heard.) 5.Pairheadsettoyoursmartphone,laptopordeskphone. 1)SearchBluetoothdeviceM100onyoursmartphone,laptopordeskphone. 2)Open“Bluetooth”menuandpress“discover”or“add”tosearch“M100”onyoursmart phone,laptopordeskphone. 3)WhenM100showsonyourBluetoothdeviceslist,pleaseclickittostartpairing.Prompt tone“connected”willbeheardwhenpairingissuccessful,andthebluelightflashesevery10 secondsinthestateofbreathing.Thisheadsetcanstoredeviceseverpairedinmemory. Whenpoweredon,theheadsetwillautomaticallyconnecttothefirsttwodevicesinmemory. FunctionIntroduction: 1.Pairwith2devicessimultaneously M100canpairwith2devicessimultaneously. 1)ConnectthefirstdevicewithM100 2)TurnofftheBluetoothfunctionofthefirstdevice 3)ConnecttheseconddevicewithM100 4)TurnontheBluetoothfunctionofthefirstdevice,clicktoreconnect“M100”onBluetoothlist. Headsetisnowconnectedwithbothdevices. 2.Redialfunction Quickpress2xMFBtoredialthelastcall. 3.Automaticre-connectionfunction Theheadsetwillre-connectpaireddevicesautomaticallyifitisdisconnected.Ifitcannotbe reconnectedtoanydeviceforover10minutes,itwillpoweroffautomatically.Pleaseturnoff theheadsetandturnonitagaintoreconnect. 4.Three-partyCall 1)QuickpressMFBtoanswerthe2ndincomingcallandhangupthe1stcall.. 2)DoublepressMFBtoanswera2ndincomingcallandreservethe1stcall. 3)PressMFBfor2secondstokeepthecurrentcallandrejectnewcall. 4)Duringathree-partycall,doublepressMFBtoswitchbetweenthecurrentcallandthe reservedcall. 5)Duringathree-partycall,quickpressMFBtoendcurrentcallandmeanwhileswitchto anothercall,pressMFBagaintoendthe2 nd call. Cautions: 1.Ensurethatthetransducerarerestedonthecheekbonesinfrontofyourears,don'tputthe transducersinyourears. 2.Donotuseheadphonewithhighvolumeforextralongtime,whichmaycausehearingloss. Alwayslistenatamoderatelevel. 3.Donotthrow,squeezetheheadphone,orimmersetheheadphoneinwater.Pleasekeepthe headphoneawayfromfire,waterandhigh-voltageequipment. 4.Pleasestoretheheadphoneinadryandventilatedplaceandchargeiteverytwomonthsif unusedforalongtime. 5.Pleaseuseacleanclothtoclearthewaterstainsorsweatafterexercising,itwillbehelpfulfor long-termuse. ProductWarrantyCard CustomerNameProductModelNo. DateofPurchaseTelNo./E-mail: ProblemDescription: MicrophoneBoneConduction Transducers BatteryButtons Warranty: Failureofheadphonebuttons,speakerormicrophone;chargeunavailable. OutofWarranty: 1.Removethein-builtbatteryartificially 2.Failtofollowtheusermanualordisassembletheheadphone 3.Incorrectconnectwithhighvoltagedeviceforchargingwhichcausesheadphonedamage. 4.Artificialdamagecausedbyimpact,falling,water,pulling. OQC CHECKING FCCStatement Thisdevicecomplieswithpart15oftheFCCrules.Operationissubjecttothefollowingtwoconditions:(1) thisdevicemaynotcauseharmfulinterference,and(2)thisdevicemustacceptanyinterferencereceived, includinginterferencethatmaycauseundesiredoperation. Changesormodificationsnotexpresslyapprovedbythepartyresponsibleforcompliancecouldvoidthe user'sauthoritytooperatetheequipment. NOTE:Thisequipmenthasbeentestedandfoundtocom…

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Xiamen Mairdi Electronic Technology Co., Ltd. Add: Unit 402 Building B, No.26 Xiangyue Road, Torch( Xiangan) Industrial Park, Xiamen, China. Date: 2022-2-21 FCC ID: 2ARQZ-M100 Dear Sir/Madam, We, Xiamen Mairdi Electronic Technology Co., Ltd. Hereby declares the following statement for Federal Communications Commission, PCB board, circuit, structure and internal of these model(s) are the same, Only model number is different for these model: Product name: Wireless Bone Conduction Headphone Model no.: M100, M100V, M200, M200V, M300, M300V, M500, M500V, M600, M600V, M690, M690V, M700, M700V, M780, M780V Sincerely, Name/Title： Cherry Ma/Sales Director Company: Xiamen Mairdi Electronic Technology Co., Ltd. Address: Unit 402 Building B, No.26 Xiangyue Road, Torch( Xiangan) Industrial Park, Xiamen, China. Phone: +86 0592-7177232 Fax: +86 0592-8265722 E-Mail: [email protected]

CONFIDENTIALITY REQUEST for Certification Service in USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21046 Date:<2022-2-21> Pursuant to Paragraphs §0.457 and 0.459 of the Commission’s Rules (47 C.F.R.) and Section §552(b)(4) of the Freedom of Information Act, we requests confidentiality for the following products: FCC ID Model name 2ARQZ-M100 M100 For the product stated above, we request that the following information be held confidential; Exhibits Long-Term Confidentiality Short-Term Confidentiality Short-Term Confidentiality Days External Photos Internal Photos Block Diagram Schematics Test Setup Photos User’s Manual Parts List Tune Up Operational Descriptions The long-term confidentiality exhibits contain our trade secrets and proprietary information that could be of benefit to our competitors. The short-term confidentiality on the basis of ensuring that business sensitive information remains confidential until the actual marketing of our new device. If you have any questions, please feel free to contact me at the address shown below. Sincerely, Name/Title： Cherry Ma/Sales Director Company: Xiamen Mairdi Electronic Technology Co., Ltd. Address: Unit 402 Building B, No.26 Xiangyue Road, Torch( Xiangan) Industrial Park, Xiamen, China. Phone: +86 0592-7177232 Fax: +86 0592-8265722 E-Mail: [email protected]

Xiamen Mairdi Electronic Technology Co., Ltd. Unit 402 Building B, No.26 Xiangyue Road, Torch( Xiangan) Industrial Park, Xiamen, China. Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 2022-2-21 To whom it may concern: We, Xiamen Mairdi Electronic Technology Co., Ltd. the undersigned, hereby authorize Eurofins Product Service GmbH to act on our behalf in all matters relating to applications for equipment authorization FCC ID: 2ARQZ-M100 including the signing of all documents related to these matters. Any and all acts carried out by Eurofins Product Service GmbH on our behalf shall have the same effect as acts of our own. We also hereby certify that no party to this application is subject to a denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. Sincerely, Name/Title： Cherry Ma/Sales Director Company: Xiamen Mairdi Electronic Technology Co., Ltd. Address: Unit 402 Building B, No.26 Xiangyue Road, Torch( Xiangan) Industrial Park, Xiamen, China. Phone: +86 0592-7177232 Fax: +86 0592-8265722 E-Mail: [email protected]

ShenzhenLCSComplianceTestingLaboratoryLtd.FCCID:2ARQZ-M100 _________________________________________________________________________________________ Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofShenzhenLCSComplianceTestingLaboratoryLtd. Page 1 of 4 EXTERIORPHOTOGRAPHS Fig.1 Fig.2 ShenzhenLCSComplianceTestingLaboratoryLtd.FCCID:2ARQZ-M100 _________________________________________________________________________________________ Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofShenzhenLCSComplianceTestingLaboratoryLtd. Page 2 of 4 Fig.3 Fig.4 ShenzhenLCSComplianceTestingLaboratoryLtd.FCCID:2ARQZ-M100 _________________________________________________________________________________________ Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofShenzhenLCSComplianceTestingLaboratoryLtd. Page 3 of 4 Fig.5 Fig.6 ShenzhenLCSComplianceTestingLaboratoryLtd.FCCID:2ARQZ-M100 _________________________________________________________________________________________ Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofShenzhenLCSComplianceTestingLaboratoryLtd. Page 4 of 4 Fig.7

ShenzhenLCSComplianceTestingLaboratoryLtd.FCCID:2ARQZ-M100 Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofShenzhenLCSComplianceTestingLaboratoryLtd. Page 1 of1 LabelandLocation Size:L:4.0cm*W:2.0cm LabelLocation WirelessBoneConductionHeadphone ModelNo.:M100 FCCID:2ARQZ-M100

ShenzhenLCSComplianceTestingLaboratoryLtd.FCCID:2ARQZ-M100 _________________________________________________________________________________________ Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofShenzhenLCSComplianceTestingLaboratoryLtd. Page 1 of 5 INTERIORPHOTOGRAPHS Fig.1 Fig.2 ShenzhenLCSComplianceTestingLaboratoryLtd.FCCID:2ARQZ-M100 _________________________________________________________________________________________ Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofShenzhenLCSComplianceTestingLaboratoryLtd. Page 2 of 5 Fig.3 Fig.4 ShenzhenLCSComplianceTestingLaboratoryLtd.FCCID:2ARQZ-M100 _________________________________________________________________________________________ Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofShenzhenLCSComplianceTestingLaboratoryLtd. Page 3 of 5 Fig.5 Fig.6 Antenna ShenzhenLCSComplianceTestingLaboratoryLtd.FCCID:2ARQZ-M100 _________________________________________________________________________________________ Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofShenzhenLCSComplianceTestingLaboratoryLtd. Page 4 of 5 Fig.7 Fig.8 ShenzhenLCSComplianceTestingLaboratoryLtd.FCCID:2ARQZ-M100 _________________________________________________________________________________________ Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofShenzhenLCSComplianceTestingLaboratoryLtd. Page 5 of 5 Fig.9

ShenzhenLCSComplianceTestingLaboratoryLtd.FCCID:2ARQZ-M100 ___________________________________________________________________________ Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofShenzhenLCSComplianceTestingLaboratoryLtd. Page 1 of 3 FCCRFExposureEvaluation 1.ProductInformation FCCID:2ARQZ-M100 Productname:WirelessBoneConductionHeadphone TestModel:M100 AdditionalModelNo.:M100V,M200,M200V,M300,M300V,M500,M500V,M600,M600V, M690,M690V,M700,M700V,M780,M780V ModelDeclaration:PCBboard,structureandinternalofthesemodel(s)arethesame,So noadditionalmodelsweretested PowerSupply: Input:DC5V DC3.7VbyRechargeableLi-ionBattery,180mAh HardwareVersion : MRD-BT004MB-V03 SoftwareVersion : MRD_BT004-V1.7 Bluetooth: 2402MHz~2480MHz ChannelNumber: 79channelsforBluetoothV5.1(DSS) 40channelsforBluetoothV5.1(DTS) ChannelSpacing: 1MHzforBluetoothV5.1(DSS) 2MHzforBluetoothV5.1(DTS) ModulationType: GFSK,π/4-DQPSK,8-DPSKforBluetoothV5.1(DSS) GFSKforBluetoothV5.1(DTS) BluetoothVersion:V5.1 AntennaType:CeramicAntenna AntennaGain:0dBi Exposurecategory:Generalpopulation/uncontrolledenvironment EUTType:ProductionUnit DeviceType:PortableDevice 2. EvaluationmethodandLimit AccordingtoKDB447498D01GeneralRFExposureGuidancev06Section4.3.1StandaloneSARtest exclusionconsiderations:“UnlessspecificallyrequiredbythepublishedRFexposureKDBprocedures, standalone1-gheadorbodyand10-gextremitySARevaluationforgeneralpopulationexposureconditions, bymeasurementornumericalsimulation,isnotrequiredwhenthecorrespondingSARTestExclusion Thresholdcondition,listedbelow,issatisfied.Thesetestexclusionconditionsarebasedonsource-based time-averagedmaximumconductedoutputpoweroftheRFchannelrequiringevaluation,adjustedfor tune-uptolerance,andtheminimumtestseparationdistancerequiredfortheexposureconditions.22The minimumtestseparationdistanceisdeterminedbythesmallestdistancefromtheantennaandradiating structuresoroutersurfaceofthedevice,accordingtothehostformfactor,exposureconditionsand platformrequirements,toanypartofthebodyorextremityofauserorbystander(see5)ofsection4.1). ToqualifyforSARtestexclusion,thetestseparationdistancesappliedmustbefullyexplainedandjustified bytheoperatingconfigurationsandexposureconditionsofthetransmitterandapplicablehostplatform requirements,typicallyintheSARmeasurementorSARanalysisreport,accordingtotherequiredpublished RFexposureKDBprocedures.WhennootherRFexposuretestingorreportingisrequired,astatementof justificationandcompliancemustbeincludedintheequipmentapproval,inlieuoftheSARreport,to qualifyfortheSARtestexclusion.Whenrequired,thedevicespecificconditionsdescribedintheother publishedRFexposureKDBproceduresmustbesatisfiedbeforeapplyingtheseSARtestexclusion ShenzhenLCSComplianceTestingLaboratoryLtd.FCCID:2ARQZ-M100 ___________________________________________________________________________ Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofShenzhenLCSComplianceTestingLaboratoryLtd. Page 2 of 3 provisions;forexample,handheldPTTtwo-wayradios,handsets,laptops&tabletsetc.“ [(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≤50mmandfor transmissionfrequenciesbetween100MHzand6GHz.Whentheminimumtestseparationdistanceis<5 mm,adistanceof5mmaccordingtof)insection4.1isappliedtodetermineSARtestexclusion. Whenoneofthefollowingtestexclusionconditionsissatisfiedforallcombinationsofsimultaneous transmissionconfigurations,furtherequipmentapprovalisnotrequiredtoincorporatetransmitter modulesinhostdevicesthatoperateinthemixedmobileandportablehostplatformexposureconditions. ThegranteeisresponsiblefordocumentingthisaccordingtoClassIpermissivechangerequirements. AntennasthatqualifyforstandaloneSARtestexclusionmustapplytheestimatedstandaloneSARto determinesimultaneoustransmissiontestexclusion. a)The[∑of(thehighestmeasuredorestimatedSARforeachstandaloneantennaconfiguration,adjusted formaximumtune-uptolerance)/1.6W/kg]+[∑ofMPEratios]is≤1.0. b)TheSARtopeaklocationseparationratiosofallsimultaneouslytransmittingantennapairsoperatingin portabledeviceexposureconditionsareall≤0.04,andthe[∑ofMPEratios]is≤1.0. 3.ReferEvaluationMethod ANSIC95.1–1999:IEEEStandardforSafetyLevelswithRespecttoHumanExposuretoRadioFrequency ElectromagneticFields,3kHzto300GHz. FCCKDBpublication447498D01GeneralRFExposureGuidancev06:MobileandPortableDevicesRFExposure ProceduresandEquipmentAuthorizationPolicies. FCCCFR47part11.1310:Radiofrequencyradiationexposurelimits. FCCCFR47part22.1093:Radiofrequencyradiationexposureevaluation:portabledevices 4.ConductedPowerResults <BTClassics> ModeChannelFrequency(MHz)PeakConductedOutputPower(dBm) GFSK 024022.49 3924413.00 7824802.75 π/4DQPSK 024022.24 3924412.80 7824802.53 8DPSK 024022.40 3924412.89 7824802.59 <BTLE> ModeChannelFrequency(MHz)PeakConductedOutputPower(dBm) GFSK 02402-0.14 1924400.46 3924800.28 ShenzhenLCSComplianceTestingLaboratoryLtd.FCCID:2ARQZ-M100 ___________________________________________________________________________ Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofShenzhenLCSComplianceTestingLaboratoryLtd. Page 3 of 3 5.ManufacturingTolerance <BTClassics> GFSK(Peak) ChannelChannel0Channel39Channel78 Target(dBm)2.03.02.0 Tolerance±(dB)1.01.01.0 π/4DQPSK(Peak) ChannelChannel0Channel39Channel78 Target(dBm)2.02.02.0 Tolerance±(dB)1.01.01.0 8DPSK(Peak) ChannelChannel0Channel39Channel78 Target(dBm)2.02.02.0 Tolerance±(dB)1.01.01.0 <BTLE> GFSK(Peak) ChannelChannel0Channel19Channel39 Target(dBm)000 Tolerance±(dB)1.01.01.0 6.EvaluationResults 6.1StandaloneEvaluation Band/Modef(GHz) Antenna Distance (mm) RFoutputpowerSARTest Exclusion Threshold SARTest Exclusion dBmmW BT Classic GFSK2.44154.02.…

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ShenzhenLCSComplianceTestingLaboratoryLtd.FCCID:2ARQZ-M100ReportNo.:LCS220208011AEB 1 AppendixB RFTestDataforBLE(ConductedMeasurement) ProductName:WirelessBoneConductionHeadphone TestModel:M100 EnvironmentalConditions Temperature: 23.5  C RelativeHumidity:52.2% ATMPressure:100.0kPa TestEngineer: NickPeng Supervisedby:LiHuan ShenzhenLCSComplianceTestingLaboratoryLtd.FCCID:2ARQZ-M100ReportNo.:LCS220208011AEB 2 B.16dBBandwidth TestResult TestModeAntennaChannel DTSBW[MHz] FL[MHz]FH[MHz]Limit[MHz]Verdict BLE_1MAnt1 24020.7122401.6322402.3440.5PASS 24400.7082439.6362440.3440.5PASS 24800.7162479.6322480.3480.5PASS TestGraphs BLE_1M_Ant1_2402 BLE_1M_Ant1_2440 BLE_1M_Ant1_2480 ShenzhenLCSComplianceTestingLaboratoryLtd.FCCID:2ARQZ-M100ReportNo.:LCS220208011AEB 3 ShenzhenLCSComplianceTestingLaboratoryLtd.FCCID:2ARQZ-M100ReportNo.:LCS220208011AEB 4 B.2Maximumconductedoutputpower TestResult TestModeAntennaChannelResult[dBm]Limit[dBm]Verdict BLE_1MAnt1 2402-0.14≤30PASS 24400.46≤30PASS 24800.28≤30PASS TestGraphs BLE_1M_Ant1_2402 BLE_1M_Ant1_2440 BLE_1M_Ant1_2480 ShenzhenLCSComplianceTestingLaboratoryLtd.FCCID:2ARQZ-M100ReportNo.:LCS220208011AEB 5 ShenzhenLCSComplianceTestingLaboratoryLtd.FCCID:2ARQZ-M100ReportNo.:LCS220208011AEB 6 B.3Maximumpowerspectraldensity TestResult TestModeAntennaChannelResult[dBm/3kHz]Limit[dBm/3kHz]Verdict BLE_1MAnt1 2402-15.17≤8.00PASS 2440-14.65≤8.00PASS 2480-14.87≤8.00PASS TestGraphs BLE_1M_Ant1_2402 BLE_1M_Ant1_2440 BLE_1M_Ant1_2480 ShenzhenLCSComplianceTestingLaboratoryLtd.FCCID:2ARQZ-M100ReportNo.:LCS220208011AEB 7 ShenzhenLCSComplianceTestingLaboratoryLtd.FCCID:2ARQZ-M100ReportNo.:LCS220208011AEB 8 B.4Bandedgemeasurements TestResult TestModeAntennaChNameChannelRefLevel[dBm]Result[dBm]Limit[dBm]Verdict BLE_1MAnt1 Low2402-0.81-47.52≤-20.81PASS High2480-0.40-47.71≤-20.4PASS TestGraphs BLE_1M_Ant1_Low_2402 BLE_1M_Ant1_High_2480 ShenzhenLCSComplianceTestingLaboratoryLtd.FCCID:2ARQZ-M100ReportNo.:LCS220208011AEB 9 B.5ConductedSpuriousEmission TestResult TestModeAntennaChannel FreqRange [MHz] RefLevel [dBm] Result[dBm]Limit[dBm]Verdict BLE_1MAnt1 2402 Reference-1.06-1.06---PASS 30~1000-1.06-60.79≤-21.06PASS 1000~26500-1.06-46.18≤-21.06PASS 2440 Reference-0.46-0.46---PASS 30~1000-0.46-61.19≤-20.46PASS 1000~26500-0.46-44.64≤-20.46PASS 2480 Reference-0.67-0.67---PASS 30~1000-0.67-60.23≤-20.67PASS 1000~26500-0.67-46.03≤-20.67PASS TestGraphs BLE_1M_Ant1_2402_0~Reference BLE_1M_Ant1_2402_30~1000 ShenzhenLCSComplianceTestingLaboratoryLtd.FCCID:2ARQZ-M100ReportNo.:LCS220208011AEB 10 BLE_1M_Ant1_2402_1000~26500 BLE_1M_Ant1_2440_0~Reference ShenzhenLCSComplianceTestingLaboratoryLtd.FCCID:2ARQZ-M100ReportNo.:LCS220208011AEB 11 BLE_1M_Ant1_2440_30~1000 BLE_1M_Ant1_2440_1000~26500 BLE_1M_Ant1_2480_0~Reference ShenzhenLCSComplianceTestingLaboratoryLtd.FCCID:2ARQZ-M100ReportNo.:LCS220208011AEB 12 BLE_1M_Ant1_2480_30~1000 BLE_1M_Ant1_2480_1000~26500 ShenzhenLCSComplianceTestingLaboratoryLtd.FCCID:2ARQZ-M100ReportNo.:LCS220208011AEB 13 B.6DutyCycle TestResult TestModeAntennaChannel ONTime [ms] Period [ms] XDC [%] xFactor 1/T[KHz] BLE_1MAnt1 24020.390.630.619061.902.082.56 24400.390.630.619061.902.082.56 24800.390.630.619061.902.082.56 TestGraphs BLE_1M_Ant1_2402 BLE_1M_Ant1_2440 BLE_1M_Ant1_2480 ShenzhenLCSComplianceTestingLaboratoryLtd.FCCID:2ARQZ-M100ReportNo.:LCS220208011AEB 14 ShenzhenLCSComplianceTestingLaboratoryLtd.FCCID:2ARQZ-M100ReportNo.:LCS220208011AEB 15 B.7EmissionsinRestrictedBands TestResult TestModeAntennaChNameChannelDetector Freq. [MHz] Result [dBm] Limit [dBm] Result [dBuV/m] Limit [dBuV/m] Verdict BLE_1MAnt1 Low2402 AV2310.000-47.31≤-41.2047.89≤54PASS AV2374.340-46.76≤-41.2048.44≤54PASS AV2390.000-47.22≤-41.2047.98≤54PASS Peak2310.000-38.92≤-21.2056.28≤74PASS Peak2352.815-37≤-21.2058.20≤74PASS Peak2390.000-38.57≤-21.2056.63≤74PASS High2480 AV2483.500-46.29≤-41.2048.91≤54PASS AV2496.800-46.11≤-41.2049.09≤54PASS AV2500.000-46.35≤-41.2048.85≤54PASS Peak2483.500-38.61≤-21.2056.59≤74PASS Peak2498.960-36.03≤-21.2059.17≤74PASS Peak2500.000-38.39≤-21.2056.81≤74PASS Note： 1.TheAntennaGainiscompensatedinthegraph. 2.ThelimitindBmforaveragedetectorisconversionfrom54dBuV/m,accordingto15.209(a).ThelimitindBm forpeakdetectoris20dBabovethelimitofaveragedetectorindBm. ShenzhenLCSComplianceTestingLaboratoryLtd.FCCID:2ARQZ-M100ReportNo.:LCS220208011AEB 16 TestGraphs BLE_1M_Ant1_Low_2402_AV BLE_1M_Ant1_Low_2402_Peak BLE_1M_Ant1_High_2480_AV ShenzhenLCSComplianceTestingLaboratoryLtd.FCCID:2ARQZ-M100ReportNo.:LCS220208011AEB 17 BLE_1M_Ant1_High_2480_Peak

ShenzhenLCSComplianceTestingLaboratoryLtd.FCCID:2ARQZ-M100ReportNo.:LCS220208011AEB Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofShenzhenLCSComplianceTestingLaboratoryLtd. Page 1 of 33 FCCTESTREPORT For XiamenMairdiElectronicTechnologyCo.,Ltd. WirelessBoneConductionHeadphone TestModel:M100 AdditionalModelNo.:PleaseRefertoPage6 Preparedfor:XiamenMairdiElectronicTechnologyCo.,Ltd. Address:Unit402BuildingB,No.26XiangyueRoad,Torch(Xiangan)Industrial Park,Xiamen,China.. Preparedby:ShenzhenLCSComplianceTestingLaboratoryLtd. Address:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei, ShajingStreet,BaoanDistrict,Shenzhen,518000,China Tel:(+86)755-82591330 Fax:(+86)755-82591332 Web:www.LCS-cert.com Mail:[email protected] Dateofreceiptoftestsample:February09,2022 Numberoftestedsamples:2 SampleNo.:220208011A-1,220208011A-2 Serialnumber:Prototype DateofTest:February09,2022~February16,2022 DateofReport:February17,2022 Scancodetocheckauthenticity ShenzhenLCSComplianceTestingLaboratoryLtd.FCCID:2ARQZ-M100ReportNo.:LCS220208011AEB Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofShenzhenLCSComplianceTestingLaboratoryLtd. Page 2 of 33 FCCTESTREPORT FCCCFR47PART15C(15.247) ReportReferenceNo..........................:LCS220208011AEA DateofIssue.........................................:February17,2022 TestingLaboratoryName..................:ShenzhenLCSComplianceTestingLaboratoryLtd. Address.................................................:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei, ShajingStreet,BaoanDistrict,Shenzhen,518000,China TestingLocation/Procedure.................:FullapplicationofHarmonisedstandards■ PartialapplicationofHarmonisedstandards□ Otherstandardtestingmethod□ Applicant’sName................................:XiamenMairdiElectronicTechnologyCo.,Ltd. Address.................................................:Unit402BuildingB,No.26XiangyueRoad,Torch(Xiangan)Industrial Park,Xiamen,China.. TestSpecification Standard................................................:FCCCFR47PART15C(15.247) TestReportFormNo..........................:LCSEMC-1.0 TRFOriginator.....................................:ShenzhenLCSComplianceTestingLaboratoryLtd. MasterTRF...........................................:Dated2011-03 ShenzhenLCSComplianceTestingLaboratoryLtd.Allrightsreserved. Thispublicationmaybereproducedinwholeorinpartfornon-commercialpurposesaslongastheShenzhenLCS ComplianceTestingLaboratoryLtd.isacknowledgedascopyrightownerandsourceofthematerial.ShenzhenLCS ComplianceTestingLaboratoryLtd.takesnoresponsibilityforandwillnotassumeliabilityfordamagesresulting fromthereader'sinterpretationofthereproducedmaterialduetoitsplacementandcontext. EUTDescription.................................:WirelessBoneConductionHeadphone TradeMark...........................................: MAIRDI TestModel............................................:M100 Ratings..................................................:Input:DC5V DC3.7VbyRechargeableLi-ionBattery,180mAh Result....................................................:Positive Compiledby:Supervisedby:Approvedby: DiamondLu/AdministratorJinWang/TechniqueprincipalGavinLiang/Manager ShenzhenLCSComplianceTestingLaboratoryLtd.FCCID:2ARQZ-M100ReportNo.:LCS220208011AEB Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofShenzhenLCSComplianceTestingLaboratoryLtd. Page3of33 FCC--TESTREPORT TestModel...............................:M100 EUT.........................................:WirelessBoneConductionHeadphone Applicant...............................:XiamenMairdiElectronicTechnologyCo.,Ltd. Address..................................:Unit402BuildingB,No.26XiangyueRoad,Torch(Xiangan)Industrial Park,Xiamen,China.. Telephone...............................:/ Fax..........................................:/ Manufacturer........................:XiamenMairdiElectronicTechnologyCo.,Ltd. Address...................................:Unit402BuildingB,No.26XiangyueRoad,Torch(Xiangan)Industrial Park,Xiamen,China.. Telephone...............................: / Fax..........................................: / Factory...................................:XiamenMairdiElectronicTechnologyCo.,Ltd. Address...................................:Unit402BuildingB,No.26XiangyueRoad,Torch(Xiangan)Industrial Park,Xiamen,China.. Telephone...............................:/ Fax..........................................:/ TestResultPositive Thetestreportmerelycorrespondstothetestsample. Itisnotpermittedtocopyextractsofthesetestresultwithoutthewrittenpermissionofthetestlaboratory. TestReportNo.:LCS220208011AEA February17,2022 Dateofissue ShenzhenLCSComplianceTestingLaboratoryLtd.FCCID:2ARQZ-M100ReportNo.:LCS220208011AEB Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofShenzhenLCSComplianceTestingLaboratoryLtd. Page4of33 RevisionHistory ReportVersionIssueDateRevisionContentRevisedBy 000February17,2022InitialIssue--- ShenzhenLCSComplianceTestingLaboratoryLtd.FCCID:2ARQZ-M100ReportNo.:LCS220208011AEB Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofShenzhenLCSComplianceTestingLaboratoryLtd. Page5of33 TABLEOFCONTENTS 1.GENERALINFORMATION....................................................................................................................................6 1.1.DESCRIPTIONOFDEVICE(EUT)............................................................................................................................6 1.2.HOSTSYSTEMCONFIGURATIONLISTANDDETAILS.............................................................................................7 1.3.EXTERNALI/OCABLE...........................................................................................................................................7 1.4.DESCRIPTIONOFTESTFACILITY...........................................................................................................................7 1.5.STATEMENTOFTHEMEASUREMENTUNCERTAINTY................…

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ShenzhenLCSComplianceTestingLaboratoryLtd.FCCID:2ARQZ-M100 _______________________________________________________________________________________________ Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofShenzhenLCSComplianceTestingLaboratoryLtd.. Page 1 of 2 TestSetupPhotosoftheEUT TestSetupPhoto(s)ofRadiatedEmissionsMeasurement Fig.1(Below1GHz) Fig.2(Above1GHz) ShenzhenLCSComplianceTestingLaboratoryLtd.FCCID:2ARQZ-M100 _______________________________________________________________________________________________ Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofShenzhenLCSComplianceTestingLaboratoryLtd.. Page 2 of 2 TestSetupPhotoofLineConductedEmissionsMeasurement