2AZLD-AIHOORA2TWS Bluetooth Headset

FCC Statement 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. 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.

ShenzhenAusoundsIntelligenceCo.,Ltd. AgentAuthorization Company:ShenzhenAusoundsIntelligenceCo.,Ltd. Address:606B,6thFloor,XuyuanBuilding,No.5003LonggangAvenue, LonggangDistrict,Shenzhen ProductName:TWSBluetoothHeadset TradeMark:AIHOOR ModelNumber(s):AIHOORA2,AIHOORA1,AIHOORA2Pro,AIHOORA3,AIHOOR A4,AIHOORA5,AIHOORA6,AIHOORA7,AIHOORA8,AIHOORA9,AIHOORA10, AIHOORB1,AIHOORB2,AIHOORB3,AIHOORB4,AIHOORB5,AIHOORB6, AIHOORB7,AIHOORB8,AIHOORB9,AIHOORB10,AIHOORA2W FCCID:2AZLD-AIHOORA2 WeauthorizeMiCOMLabsInc.,575BoulderCourt,Pleasanton,California94566,USA, toactonourbehalfonallmattersconcerningthecertificationofabovenamed equipment. WedeclarethatMiCOMLabsInc.isallowedtoforwardallinformationrelatedtothe approvalandcertificationofequipmenttotheregulatoryagenciesasrequiredandto discussanyissuesconcerningtheapprovalapplication.Anyandallactscarriedoutby MiCOMLabsonourbehalfshallhavethesameeffectasactsofourown. Signature:Date:2021-5-14 Name:youjunpu Title:Qualitymanager Company:ShenzhenAusoundsIntelligenceCo.,Ltd.

ShenzhenAusoundsIntelligenceCo.,Ltd. Add:606B,6thFloor,XuyuanBuilding,No.5003LonggangAvenue,Longgang District,Shenzhen Tel: Fax: Date:2021-5-14 DearSir/Madam, We,ShenzhenAusoundsIntelligenceCo.,Ltd.Herebydeclaresthefollowingstatement, PCBboard,circuit,structureandinternalofthesemodel(s)arethesame,Onlymodelnumber isdifferentforthesemodel: Productname:TWSBluetoothHeadset ModelNo.:AIHOORA2,AIHOORA1,AIHOORA2Pro,AIHOORA3,AIHOORA4,AIHOORA5, AIHOORA6,AIHOORA7,AIHOORA8,AIHOORA9,AIHOORA10,AIHOORB1,AIHOORB2, AIHOORB3,AIHOORB4,AIHOORB5,AIHOORB6,AIHOORB7,AIHOORB8,AIHOORB9, AIHOORB10,AIHOORA2W Sincerely, Client’sname/title:youjunpu/Qualitymanager Contactinformation/address:606B,6thFloor,XuyuanBuilding,No.5003LonggangAvenue, LonggangDistrict,Shenzhen Tel:86-75533622855Fax::86-75533622856 E-Mail:[email protected]

ShenzhenAusoundsIntelligenceCo.,Ltd. OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USA Date:2021-5-14 Subject;RequestforConfidentiality FCCID:2AZLD-AIHOORA2 ToWhomItMayConcern, PursuanttotheprovisionsoftheCommission’srulesTitle47Sections§0.457and§0.459,we arerequestingtheCommissiontowithholdthefollowingattachment(s)asconfidential documentsfrompublicdisclosureindefinitely. Thesedocumentscontaindetailedsystemandequipmentdescriptionsandareconsideredas proprietaryinformationinoperationoftheequipment.Thepublicdisclosureofthesedocuments mightbeharmfultoourcompanyandwouldgivecompetitorsanunfairadvantageinthemarket. SchematicDiagram BlockDiagram OperationalDescription 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:youjunpu Title:Qualitymanager

SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2 EXTERIORPHOTOGRAPHS Fig.1 Fig.2 SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2 Fig.3 Fig.4 SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2 Fig.5 Fig.6 SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2 Fig.7 Fig.8 SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2 Fig.9 Fig.10 SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2 Fig.11 Fig.12

SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2 Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofShenzhenLCSComplianceTestingLaboratoryLtd. Page 1 of1 LabelandLocation Size:L2.0cm*W1.0cm Note:Theheadphonesaretoosmalltofitonthelabel,andarestoredintheinstructionmanual. TWSBluetoothHeadset ModelNo.:AIHOORA2 FCCID:2AZLD-AIHOORA2

SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2 INTERIORPHOTOGRAPHS Fig.1 Fig.2 SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2 Fig.3 Fig.4 SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2 Fig.5 Fig.6 SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2 Fig.7 Fig.8 BTANT SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2 Fig.9 Fig.10

SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2 Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofShenzhenLCSComplianceTestingLaboratoryLtd. Page 1 of 3 FCCRFExposureEvaluation 1.ProductInformation FCCID:2AZLD-AIHOORA2 Productname TWSBluetoothHeadset TestModelAIHOORA2 AdditionalModelNoAIHOORA1,AIHOORA2Pro,AIHOORA3,AIHOORA4,AIHOORA5, AIHOORA6,AIHOORA7,AIHOORA8,AIHOORA9,AIHOORA10, AIHOORB1,AIHOORB2,AIHOORB3,AIHOORB4,AIHOORB5, AIHOORB6,AIHOORB7,AIHOORB8,AIHOORB9,AIHOORB10, AIHOORA2W ModelDeclarationPCBboard,structureandinternalofthesemodel(s)arethesame,So noadditionalmodelsweretested Powersupply Input:5V Headset:DC3.7VbyLi-ionBattery(40mAh) Chargingcase:DC3.7VbyLi-ionBattery(500mAh) ModulationTypeGFSK,π/4-DQPSK,8-DPSKforBluetoothV5.2(DSS) AntennaTypeInternalAntenna AntennaGain0dBi(Max.) HardwareversionV1.0 SoftwareversionV1.0 BluetoothOperationfrequency2402MHz~2480MHz BluetoothVersionV5.2 ExposurecategoryGeneralpopulation/uncontrolledenvironment EUTTypeProductionUnit DeviceTypeProtableDevice 2.EvaluationMethod AccordingtoKDB447498D01GeneralRFExposureGuidancev06Section4.3.1StandaloneSARtest exclusionconsiderations:“UnlessspecificallyrequiredbythepublishedRFexposureKDBprocedures, standalone1-gheadorbodyand10-gextremitySARevaluationforgeneralpopulationexposure conditions,bymeasurementornumericalsimulation,isnotrequiredwhenthecorrespondingSARTest ExclusionThresholdcondition,listedbelow,issatisfied.Thesetestexclusionconditionsarebasedon source-basedtime-averagedmaximumconductedoutputpoweroftheRFchannelrequiringevaluation, adjustedfortune-uptolerance,andtheminimumtestseparationdistancerequiredfortheexposure conditions.Theminimumtestseparationdistanceisdeterminedbythesmallestdistancefromthe antennaandradiatingstructuresoroutersurfaceofthedevice,accordingtothehostformfactor, exposureconditionsandplatformrequirements,toanypartofthebodyorextremityofauseror bystander(see5)ofsection4.1).ToqualifyforSARtestexclusion,thetestseparationdistancesapplied mustbefullyexplainedandjustifiedbytheoperatingconfigurationsandexposureconditionsofthe transmitterandapplicablehostplatformrequirements,typicallyintheSARmeasurementorSAR analysisreport,accordingtotherequiredpublishedRFexposureKDBprocedures.WhennootherRF exposuretestingorreportingisrequired,astatementofjustificationandcompliancemustbeincluded intheequipmentapproval,inlieuoftheSARreport,toqualifyfortheSARtestexclusion.When required,thedevicespecificconditionsdescribedintheotherpublishedRFexposureKDBprocedures mustbesatisfiedbeforeapplyingtheseSARtestexclusionprovisions;forexample,handheldPTT two-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 SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2 Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofShenzhenLCSComplianceTestingLaboratoryLtd. Page 2 of 3 <5mm,adistanceof5mmaccordingtof)insection4.1isappliedtodetermineSARtestexclusion. 3.ReferEvaluationMethod ANSIC95.1–1999:IEEEStandardforSafetyLevelswithRespecttoHumanExposuretoRadioFrequency ElectromagneticFields,3kHzto300GHz. FCCKDBpublication447498D01GeneralRFExposureGuidancev06:MobileandPortableDevicesRF ExposureProceduresandEquipmentAuthorizationPolicies. FCCCFR47part11.1310:Radiofrequencyradiationexposurelimits. FCCCFR47part22.1093:Radiofrequencyradiationexposureevaluation:portabledevices 4.ConductedPowerResults [BTClassics] ModeChannelFrequency(MHz) PeakConducted OutputPower (dBm) GFSK 02402-1.532 392441-2.408 782480-3.725 π/4DQPSK 024020.737 392441-0.151 782480-1.420 8DPSK 024021.401 3924410.442 782480-0.826 5.ManufacturingTolerance [BTClassics] GFSK(Peak) ChannelChannel0Channel39Channel78 Target(dBm)-1.0-2.0-3.0 Tolerance±(dB)1.01.01.0 π/4DQPSK(Peak) ChannelChannel0Channel39Channel78 Target(dBm)00-1.0 Tolerance±(dB)1.01.01.0 8DPSK(Peak) ChannelChannel0Channel39Channel78 Target(dBm)1.000 Tolerance±(dB)1.01.01.0 SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2 Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofShenzhenLCSComplianceTestingLaboratoryLtd. Page 3 of 3 6.EvaluationResults 6.1StandaloneEvaluation Band/Modef(GHz) Antenna Distance (mm) RFoutputpower SARTestExclusion Threshold SARTest Exclusion dBmmW GFSK2.402501.00000.3100<3.0Yes π/4DQPSK2.402511.25890.3902<3.0Yes 8DPSK2.402521.58490.4913<3.0Yes Remark: 1.RFoutputpowerincludingtuneuptolerance; 2.Whentheminimumtestseparationdistanceis<5mm,adistanceof5mmaccordingtof)insection4.1 ofKDB447498isappliedtodetermineSARtestexclusion. 7.Conclusion ThemeasurementresultscomplywiththeFCCLimitper47CFR2.1093fortheuncontrolledRFExposure andSARExclusionThresholdperKDB447498v06. ----------------THEENDOFREPORT---------------

SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Page1of47 AppendixA RFTestDataforBTV5.2(BDR/EDR)(ConductedMeasurement) ProductName:TWSBluetoothHeadset TradeMark:AIHOOR TestModel:AIHOORA2 EnvironmentalConditions Temperature: 24.6  C RelativeHumidity:54.1% ATMPressure:100.0kPa TestEngineer:KayHu Supervisedby:LiHuan A.1MaxmumConductedPeakOutputPower ModeChannel.MaximumPeakOutputPower[dBm]Limit[dBm]Verdict GFSK LCH-1.53221PASS MCH-2.40821PASS HCH-3.72521PASS π/4DQPSK LCH0.73721PASS MCH-0.15121PASS HCH-1.42021PASS 8DPSK LCH1.40121PASS MCH0.44221PASS HCH-0.82621PASS SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Page2of47 TestGraphs GFSK/LCH GFSK/MCH SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Page3of47 GFSK/HCH π/4DQPSK/LCH SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Page4of47 π/4DQPSK/MCH π/4DQPSK/HCH SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Page5of47 8DPSK/LCH 8DPSK/MCH SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Page6of47 8DPSK/HCH SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Page7of47 A.220dBBandwidth ModeChannel.20dBBandwidth[MHz]Limit[MHz]Verdict GFSK LCH0.9502NotSpecifiedPASS MCH0.9500NotSpecifiedPASS HCH0.9499NotSpecifiedPASS π/4DQPSK LCH1.320NotSpecifiedPASS MCH1.320NotSpecifiedPASS HCH1.320NotSpecifiedPASS 8DPSK LCH1.266NotSpecifiedPASS MCH1.267NotSpecifiedPASS HCH1.272NotSpecifiedPASS TestGraphs GFSK/LCH SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Page8of47 GFSK/MCH GFSK/HCH SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Page9of47 π/4DQPSK/LCH π/4DQPSK/MCH SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Page10of47 π/4DQPSK/HCH 8DPSK/LCH SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Page11of47 8DPSK/MCH 8DPSK/HCH SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Page12of47 A.3CarrierFrequencySeparation ModeChannel.CarrierFrequencySeparation[MHz]Limit[MHz]Verdict GFSK LCH1.0010.633PASS MCH0.7860.633PASS HCH0.9980.633PASS π/4DQPSK LCH1.1100.880PASS MCH1.0140.880PASS HCH0.9040.880PASS 8DPSK LCH1.0020.848PASS MCH1.0000.848PASS HCH0.9980.848PASS TestGraphs GFSK/LCH SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Page13of47 GFSK/MCH GFSK/HCH SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Page14of47 π/4DQPSK/LCH π/4DQPSK/MCH SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Page15of47 π/4DQPSK/HCH 8DPSK/LCH SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Page16of47 8DPSK/MCH 8DPSK/HCH SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Page17of47 A.4HoppingChannelNumber ModeChannel.NumberofHoppingChannel[N]Limit[N]Verdict GFSKHop79>=15PASS π/4DQPSKHop79>=15PASS 8DPSKHop79>=15PASS TestGraphs GFSK/Hop π/4DQPSK/Hop SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Page18of47 8DPSK/Hop SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Page19of47 A.5DwellTime ModePacketChannel BurstWidth [ms/hop/ch] Total Hops[hop*ch] DwellTime[s]Limit[s]Verdict GFSK DH5LCH 2.9106.70.3090.4 PASS DH5MCH 2.9106.70.3090.4 PASS DH5HCH 2.9106.70.3090.4 PASS π/4DQPSK 2DH5LCH 2.9106.70.3090.4 PASS 2DH5MCH 2.9106.70.3090.4 PASS 2DH5HCH 2.9106.70.3090.4 PASS 8DPSK 3DH5LCH 2.9106.70.3090.4 PASS 3DH5MCH 2.9106.70.3090.4 PASS 3DH5HCH 2.9106.70.3090.4 PASS TestGraphs GFSK_DH5/LCH SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Page20of47 GFSK_DH5/MCH GFSK_DH5/HCH SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Page21of47 π/4DQPSK _2DH5/LCH π/4DQPSK _2DH5/MCH SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Page22of47 π/4DQPSK _2DH5/HCH 8DPSK_3DH5/LCH SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Page23of47 8DPSK_3DH5/MCH 8DPSK_3DH5/HCH SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Page24of47 A.6RFConductedSpuriousEmissions ModeChannelPref[dBm]Max.Level[dBm]Limit[dBm]Verdict GFSK LCH-1.776 -37.839-21.776 PASS MCH-2.668-38.553-22.668PASS HCH-4.169-37.967-24.169PASS π/4DQPSK LCH-1.92-37.276-21.920PASS MCH-2.857-37.861-22.857PASS HCH-4.152-37.829-24.152PASS 8DPSK LCH-1.608-37.766-21.608PASS MCH-2.618-38.297-22.618PASS HCH-3.932-37.135-23.932PASS GFSK_LCH_Graphs Pref SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Page25of47 Puw

SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Page26of47 GFSK_MCH_Graphs Pref Puw SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Page27of47 GFSK_HCH_Graphs Pref Puw SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Page28of47 π/4DQPSK_LCH_Graphs Pref Puw SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Page29of47 π/4DQPSK_MCH_Graphs Pref Puw SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Page30of47 π/4DQPSK_HCH_Graphs Pref Puw SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Page31of47 8DPSK_LCH_Graphs Pref Puw SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Page32of47 8DPSK_MCH_Graphs Pref Puw SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Page33of47 8DPSK_HCH_Graphs Pref Puw SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Page34of47 A.7Band-edgeforRFConductedEmissions ModeChannel Carrier Frequency [MHz] Carrier Power [dBm] Frequency Hopping Max Spurious Level [dBm] Limit [dBm] Verdict GFSK LCH2402 -1.753Off-49.671-21.75 PASS -1.831On-49.296-21.83 PASS HCH2480 -4.006Off-48.457-24.01 PASS -3.291On-48.483-23.29 PASS π/4DQPSK LCH2402 -1.898Off-49.743-21.9 PASS -1.978On-49.012-21.98 PASS HCH2480 -4.136Off-49.850-24.14 PASS -3.574On-48.199-23.57 PASS 8DPSK LCH2402 -1.595Off-49.761-21.6 PASS -1.637On-49.285-21.64 PASS HCH2480 -3.903Off-48.941-23.9 PASS -3.294On-48.805-23.29 PASS SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Page35of47 TestGraphs GFSK/LCH/NoHop GFSK/LCH/Hop SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Page36of47 GFSK/HCH/NoHop GFSK/HCH/Hop SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Page37of47 π/4DQPSK/LCH/No Hop π/4DQPSK/LCH/Hop SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Page38of47 π/4DQPSK/HCH/No Hop π/4DQPSK/HCH/Hop SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Page39of47 8DPSK/LCH/NoHop 8DPSK/LCH/Hop SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Page40of47 8DPSK/HCH/NoHop 8DPSK/HCH/Hop SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Page41of47 A.8Restrict-bandband-edgemeasurements Test Mode HoppingFreq. Power [dBm] Gain Ground Factor E [dBuV/m] Detector Limit [dBuV/m] Verdict GFSK Off2310.0-42.922.0054.34PEAK74PASS Off2310.0-53.352.0043.91AV54PASS Off2390.0-43.202.0054.05PEAK74PASS Off2390.0-53.122.0044.13AV54PASS Off2483.5-42.282.0054.98PEAK74PASS Off2483.5-52.622.0044.64AV54PASS Off2500.0-42.402.0054.86PEAK74PASS Off2500.0-52.462.0044.80AV54PASS π/4DQPSK Off2310.0-42.952.0054.31PEAK74PASS Off2310.0-53.462.0043.79AV54PASS Off2390.0-42.452.0054.81PEAK74PASS Off2390.0-53.092.0044.17AV54PASS Off2483.5-42.222.0055.04PEAK74PASS Off2483.5-52.522.0044.74AV54PASS Off2500.0-41.422.0055.83PEAK74PASS Off2500.0-52.452.0044.81AV54PASS 8DPSK Off2310.0-44.062.0053.20PEAK74PASS Off2310.0-53.492.0043.77AV54PASS Off2390.0-43.072.0054.18PEAK74PASS Off2390.0-53.082.0044.18AV54PASS Off2483.5-42.622.0054.64PEAK74PASS Off2483.5-52.642.0044.62AV54PASS Off2500.0-41.652.0055.60PEAK74PASS Off2500.0-52.502.0044.76AV54PASS SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Page42of47 Restrict-bandband-edgemeasurements_HoppingOff_GFSK_PEAK(LowChannel) Restrict-bandband-edgemeasurements_HoppingOff_GFSK_Average(LowChannel) SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Page43of47 Restrict-bandband-edgemeasurements_HoppingOff_GFSK_PEAK(HighChannel) Restrict-bandband-edgemeasurements_HoppingOff_GFSK_Average(HighChannel) SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Page44of47 Restrict-bandband-edgemeasurements_HoppingOff_π/4-DQPSK_PEAK(LowChannel) Restrict-bandband-edgemeasurements_HoppingOff_π/4-DQPSK_Average(LowChannel) SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Page45of47 Restrict-bandband-edgemeasurements_HoppingOff_π/4-DQPSK_PEAK(HighChannel) Restrict-bandband-edgemeasurements_HoppingOff_π/4-DQPSK_Average(HighChannel) SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Page46of47 Restrict-bandband-edgemeasurements_HoppingOff_8DPSK_PEAK(LowChannel) Restrict-bandband-edgemeasurements_HoppingOff_8DPSK_Average(LowChannel) SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Page47of47 Restrict-bandband-edgemeasurements_HoppingOff_8DPSK_PEAK(HighChannel) Restrict-bandband-edgemeasurements_HoppingOff_8DPSK_Average(HighChannel)

SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofShenzhenLCSComplianceTestingLaboratoryLtd. Page 1 of 37 FCCTESTREPORT For ShenzhenAusoundsIntelligenceCo.,Ltd. TWSBluetoothHeadset TestModel:AIHOORA2 AdditionalModelNo.:PleaseRefertoPage6 Preparedfor:ShenzhenAusoundsIntelligenceCo.,Ltd. Address: 606B,6thFloor,XuyuanBuilding,No.5003LonggangAvenue,Longgang District,Shenzhen 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:April16,2021 Numberoftestedsamples:2 SampleNo.:210412083A-1,210412083A-2 Serialnumber:Prototype DateofTest:April16,2021~April26,2021 DateofReport:April26,2021 SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofShenzhenLCSComplianceTestingLaboratoryLtd. Page 2 of 37 FCCTESTREPORT FCCCFR47PART15C(15.247) ReportReferenceNo..........................:LCS210412083AEA DateofIssue.........................................:April26,2021 TestingLaboratoryName..................:ShenzhenLCSComplianceTestingLaboratoryLtd. Address.................................................: 101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei, ShajingStreet,BaoanDistrict,Shenzhen,518000,China TestingLocation/Procedure................. : FullapplicationofHarmonisedstandards■ PartialapplicationofHarmonisedstandards□ Otherstandardtestingmethod□ Applicant’sName................................:ShenzhenAusoundsIntelligenceCo.,Ltd. Address.................................................: 606B,6thFloor,XuyuanBuilding,No.5003LonggangAvenue, LonggangDistrict,Shenzhen 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.................................:TWSBluetoothHeadset TradeMark...........................................:AIHOOR TestModel............................................:AIHOORA2 Ratings..................................................: Input:5V Headset:DC3.7VbyLi-ionBattery(40mAh) Chargingcase:DC3.7VbyLi-ionBattery(500mAh) Result....................................................:Positive Compiledby: Supervisedby:Approvedby: ScentHu/FileadministratorsJinWang/TechniqueprincipalGavinLiang/Manager SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofShenzhenLCSComplianceTestingLaboratoryLtd. Page3of37 FCC--TESTREPORT TestModel...............................:AIHOORA2 EUT.........................................:TWSBluetoothHeadset Applicant...............................:ShenzhenAusoundsIntelligenceCo.,Ltd. Address..................................: 606B,6thFloor,XuyuanBuilding,No.5003LonggangAvenue, LonggangDistrict,Shenzhen Telephone...............................: Fax..........................................: Manufacturer........................:ShenzhenAusoundsIntelligenceCo.,Ltd. Address...................................: 606B,6thFloor,XuyuanBuilding,No.5003LonggangAvenue, LonggangDistrict,Shenzhen Telephone...............................: Fax..........................................: Factory...................................:ShenzhenAusoundsIntelligenceCo.,Ltd. Address...................................: 606B,6thFloor,XuyuanBuilding,No.5003LonggangAvenue, LonggangDistrict,Shenzhen Telephone...............................: Fax..........................................: TestResultPositive Thetestreportmerelycorrespondstothetestsample. Itisnotpermittedtocopyextractsofthesetestresultwithoutthewrittenpermissionofthetestlaboratory. TestReportNo.:LCS210412083AEA April26,2021 Dateofissue SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofShenzhenLCSComplianceTestingLaboratoryLtd. Page4of37 RevisionHistory RevisionIssueDateRevisionsRevisedBy 000April26,2021InitialIssueGavinLiang SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2ReportNo.:LCS210412083AEA Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofShenzhenLCSComplianceTestingLaboratoryLtd. Page5of37 TABLEOFCONTENTS Description..................................................................................................................................................Page 1.GENERALINFORMATION...................................................................................................................................................6 1.1.DESCRIPTIONOFDEVICE(EUT)...........................................................................................................................................6 1.2.HOSTSYSTEMCONFIGURATIONLISTANDDETAILS.............................................................................................................7 1.3.EXTERNALI/OCABLE...........................................................................................................................................................7 1.4.DESCRIPTIONOFTESTFACILITY.....…

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SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2 _______________________________________________________________________________________________ TESTSETUPPHOTOGRAPHS PhotoofRadiatedEmissionsMeasurement Fig.1 Fig.2 Left Left SHENZHENLCSCOMPLIANCETESTINGLABORATORYLTD.FCCID:2AZLD-AIHOORA2 _______________________________________________________________________________________________ PhotoofConductedEmissionsMeasurement Fig.3