2ARQZ-M890BTWireless Communication Headset

B. Pairing Factory Reset Press the "+" and "-" at the same time for 5s to remove pairing history and enter pairing mode. LED Light Indicator Red and blue light flash x 2 toot 1. Product Introduction Wireless Headset Pairing Name: M890BT Microphone: Directional noise reduction microphone Acoustic Noise Canceling Structure Crystal clear sound and voice (DSP) Transmission Distance: up to 30 meters (the transmission distance may vary slightly depending on the usage environment and the device used) Talk Time: up to 30 hours at 70% volume Standby Time: up to 200 hours Battery Type: Lithium-ion Battery Capacity: 320mAh Charging Voltage: <24VDC Charging Time: 2 hours Charging Current: 200mA Charging Interface: Type-C USB 1. M890BT Mono or M890BTD Dual Headset 2. Charge Base (Optional 3. USB Dongle (Optional) 4. USB Type C Charge Cable 5. Quick Start Guide Charge BaseUSB Dongle Slide the switch on: power on Slide the switch off: power off A. LED Light Indicator Blue 2s: power on Red 2s: power off Blue and red alternately: Pairing mode Blue light every 4s: paired Power on Power off Pairing Connected Disconnected A. Headset + Bluetooth device +Bluetooth device 1) Pair the headset with first Bluetooth device 2) Turn off the Bluetooth function of the first Bluetooth device paired 3) Pair the headset with second Bluetooth device 4) Turn on the Bluetooth function of the first Bluetooth device A. B. Play music : press x1 Pause music: press x1 Volume up: quick press "+" x1 Voume down: quick press "-" x1 Next song: press "+" x 1s Last song: press "-" x 1s LED Light Indicator Red light flashes:low battery warning Red light soild on: in charge Red light off: fully charged a. Do not disassemble this product by yourself or throw it into fire or water to avoid short circuit leakage or damage to the product. b. Please do not use this product in high temperature, humidity to avoid damage to the circuit and lead to failure to charge or other failures. c. Do not expose the product to corrosive liquids, otherwise it will cause serious damage. d. Do not disassemble or modify this product for any reason to avoid secondary failure and burnout. e. Do not place the product below -10° C or above 60° C. f. Do not knock, throw or vibrate this product strongly. Rough methods will damage the internal circuit board structure. LED Light Indicator Blue light in breathing: music playing In the idle status, press the button x2s to activate voice assistant. Volume Down Volume Up Answer/End Call Mic Mute LED Light Indicator Red light flashes:call coming Red light in breathing: busy in call Mute on Mute off B. Headset + Bluetooth device + USB dongle for PC (if supplied) 1) Pair the headset with smartphone first 2) Plug the USB dongle into PC. The USB dongle is already pre-paired with headset when leaving the factory. It will connect with headset automatically. 2. Package List 3.Power on/off and Pairing 4.Multipoint Pairing 5. Call Control6. Music Control 8. Charging 9. Safety Guide 7. Voice Assistant M890BT Mono & M890BTD Dual Wireless Headset or or Quick Start Guide Low battery warning: "toot" every 5 minutes toot Optional 10. Product Warranty Card Warranty: Failure of headset buttons, failure of speaker or microphone, charge unavailable. Out of Warranty: 1. Ear cushions, headset broken. 2. Fail to follow the user manual or disassemble the headset and charging base. 3. Incorrect connection with high voltage device for charging which causes headphone damage. 4. Artificial damage caused by impact, falling, water, pulling. Customer Name Date of Purchase Problem Description: MicrophoneSpeakerBatteryButtons Product Model No. Tel No./E-mail Optional Press x1: answer call Press x1: end call Press x2s: reject call Quick press x2: redial last call Mic mute: press x1 Mic unmute: press x1 The First -Time Setup Slide the switch on to power on and it enters pairing mode.Turn on the Bluetooth function on your device and select the M890BT from the device list to connect to the headset. Subsequent Use with Paired Bluetooth Devices To use the headset with a Bluetooth device that has been paired before, simply slide the switch on. The headset will enter re-connection mode and automatically re-connect to your paired Bluetooth device. 1234 6 5 789 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 encour- aged 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. FCC ID: 2ARQZ-M890BT

Page1of5 FCCID: 2ARQZ-M890BT DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. ExternalPhotos Photo1 Photo2 Page2of5 FCCID: 2ARQZ-M890BT DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo3 Photo4 Page3of5 FCCID: 2ARQZ-M890BT DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo5 Photo6 Page4of5 FCCID: 2ARQZ-M890BT DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo7 Photo8 Page5of5 FCCID: 2ARQZ-M890BT DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo9 ------End------

Label FCCID:2ARQZ-M890BT

Page1of4FCCID: 2ARQZ-M890BT DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. InternalPhotos Photo1 Photo2 Page2of4FCCID: 2ARQZ-M890BT DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo3 Photo4 Antenna Page3of4FCCID: 2ARQZ-M890BT DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo5 Photo6 Page4of4FCCID: 2ARQZ-M890BT DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo7 ------End------

RFExposureevaluation FCCID:2ARQZ-M890BT ApplicableStandard Accordingto§1.1307(b)(1),systemsoperatingundertheprovisionsofthissectionshallbeoperatedina mannerthatensuresthatthepublicisnotexposedtoradiofrequencyenergylevelinexcessofthe Commission’sguidelines. Accordingto§1.1310and§2.1093RFexposurerequirement KDB447498v06:MobileandPortableDevicesRFExposureProceduresandEquipmentAuthorization Policies 1.1.Requirement AccordingtoKDB447498D01GeneralRFExposureGuidancev06Section4.3.1StandaloneSARtest exclusionconsiderations:“UnlessspecificallyrequiredbythepublishedRFexposureKDBprocedures, standalone1-gheadorbodyand10-gextremitySARevaluationforgeneralpopulationexposureconditions, bymeasurementornumericalsimulation,isnotrequiredwhenthecorrespondingSARTestExclusion Thresholdcondition,listedbelow,issatisfied.Thesetestexclusionconditionsarebasedonsource-based time-averagedmaximumconductedoutputpoweroftheRFchannelrequiringevaluation,adjustedfortune-up tolerance,andtheminimumtestseparationdistancerequiredfortheexposureconditions.22Theminimum testseparationdistanceisdeterminedbythesmallestdistancefromtheantennaandradiatingstructuresor outersurfaceofthedevice,accordingtothehostformfactor,exposureconditionsandplatformrequirements, toanypartofthebodyorextremityofauserorbystander(see5)ofsection4.1).ToqualifyforSARtest exclusion,thetestseparationdistancesappliedmustbefullyexplainedandjustifiedbytheoperating configurationsandexposureconditionsofthetransmitterandapplicablehostplatformrequirements,typically intheSARmeasurementorSARanalysisreport,accordingtotherequiredpublishedRFexposureKDB procedures.WhennootherRFexposuretestingorreportingisrequired,astatementofjustificationand compliancemustbeincludedintheequipmentapproval,inlieuoftheSARreport,toqualifyfortheSARtest exclusion.Whenrequired,thedevicespecificconditionsdescribedintheotherpublishedRFexposureKDB proceduresmustbesatisfiedbeforeapplyingtheseSARtestexclusionprovisions;forexample,handheldPTT two-wayradios,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≤50mmandfor transmissionfrequenciesbetween100MHzand6GHz.Whentheminimumtestseparationdistanceis<5 mm,adistanceof5mmaccordingto5)insection4.1isappliedtodetermineSARtestexclusion. 1.2.Manufacturingtolerance BR-EDR Frequency (MHz) GFSK 240224412480 Target(dBm)2.03.02.0 Tolerance±(dB)1.01.01.0 Frequency (MHz) π/4DQPSK 240224412480 Target(dBm)3.04.02.0 Tolerance±(dB)1.01.01.0 Frequency (MHz) 8DPSK 240224412480 Target(dBm)3.04.03.0 Tolerance ± (dB) 1.01.01.0 Page2of2 BLE Frequency (MHz) GFSK 240224402480 Target(dBm)2.03.02.0 Tolerance±(dB)1.01.01.0 Frequency (MHz) GFSK 240224402480 Target(dBm)2.03.02.0 Tolerance ± (dB) 1.01.01.0 2.EvaluationResult EvaluationResults Band/Modef(GHz) Antenna Distance (mm) Max.RFoutputpower (includingtune-up tolerance) SARTest Exclusion Threshold SARTest Exclusion dBmmW BR-EDR2.555.03.161.000<3Yes BLE2.554.02.510.794<3Yes 3.Conclusion ThemeasurementresultscomplywiththeFCCLimitper47CFR2.1093fortheuncontrolledRFExposure andSARExclusionThresholdperKDB447498v06 .....................EndofReport.........................

Page1of38ReportNo.:AIT23122510FW1 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. TESTREPORT ClientInformation: Applicant:XiamenMairdiElectronicTechnologyCo.,Ltd Applicantadd.: Unit402,BuildingB,No.26XiangyueRoadTorch(Xiangan)IndustrialPark, Xiamen,China Manufacturer:XiamenMairdiElectronicTechnologyCo.,Ltd Manufactureradd.: Unit402,BuildingB,No.26XiangyueRoadTorch(Xiangan)IndustrialPark, Xiamen,China ProductInformation: ProductName:WirelessCommunicationHeadset ModelNo: M890BT,M890BTD,M891BT,M891BTD,M892BT,M892BTD,M893BT, M893BTD,M895BT,M895BTD,M896BT,M896BTD,M900BT,M900BTD, M890BTENC,M891BTENC,M891BTDENC,M892BTDENC,M892BTDANC BrandName:MAIRDI FCCID:2ARQZ-M890BT Applicablestandards : FCCCFRTitle47Part15SubpartCSection15.247 PreparedBy: DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang,Huangjiang,Dongguan, Guangdong,China Tel.:+86-769-82020499Fax.:+86-769-82020495 DateofReceipt:Dec.25,2023DateofTest:Dec.26,2023~Dec.27,2023 DateofIssue:Dec.28,2023TestResult:Pass ThisdevicedescribedabovehasbeentestedbyDongguanYaxu(AiT)TechnologyLimitedandthe testresultsshowthattheequipmentundertest(EUT)isincompliancewiththeFCCrequirements. Anditisapplicableonlytothetestedsampleidentifiedinthereport. Note:Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofDongguan Yaxu(AiT)TechnologyLimited,thisdocumentmaybealteredorrevisedbyDongguanYaxu(AiT) TechnologyLimited,personalonly,andshallbenotedintherevisionofthedocument.Thistest reportmustnotbeusedbytheclienttoclaimproductendorsement. Reviewedby:Approvedby: SimbaHuangSeal.chen Page2of38ReportNo.:AIT23122510FW1 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. 1Contents Page COVERPAGE 1CONTENTS......................................................................................................................................................................2 2TESTSUMMARY............................................................................................................................................................4 2.1StatementoftheMeasurementUncertainty................................................................................4 2.2MeasurementUncertainty............................................................................................................4 3TESTFACILITY..............................................................................................................................................................5 3.1Deviationfromstandard...............................................................................................................5 3.2Abnormalitiesfromstandardconditions.......................................................................................5 3.3TestLocation.................................................................................................................................5 4GENERALINFORMATION...........................................................................................................................................6 4.1Testfrequencies............................................................................................................................7 4.2EUTPeripheralList.......................................................................................................................8 4.3TestPeripheralList.......................................................................................................................8 4.4TESTMETHODOLOGY...............................................................................................................9 4.5DescriptionofTestModes..........................................................................................................10 5EQUIPMENTUSEDDURINGTEST.........................................................................................................................11 6TESTRESULTSANDMEASUREMENTDATA.....................................................................................................11 6.1Antennarequirement..................................................................................................................12 6.2PeakPowerMeasurement.........................................................................................................13 6.3FrequencySeparationand20dBBandwidth............................................................................15 6.4NumberofHoppingFrequency..................................................................................................17 6.5TimeofOccupancy(DwellTime)...............................................................................................17 6.6ConductedSpuriousEmissionsandBandEdgesTest.............................................................17 6.7Restrict-bandBand-edgeMeasurements..................................................................................22 6.8RadiatedEmissionsMeasurement............................................................................................24 6.9ConductedEmissions.................................................................................................................34 6.10Pseudorandomfrequencyhoppingsequence...........................................................................37 7TESTSETUPPHOTOGRAPHSOFEUT.................................................................................................................38 8EXTERNALPHOTOGRAPHSOFEUT....................................................................................................................38 9INTERNALPHOTOGRAPHSOFEUT.....................................................................................................................38 Page3of38ReportNo.:AIT23122510FW1 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. RevisionHistory RevisionIssueDateRevisionsRevisedBy 000 Dec…

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Antenna Describe 1： Antenna Describe Antenna PCB Antenna Gain 0dBi Frequency Range 2.4Ghz‐2.483Ghz Connector Type Direct Location of mearement(company name) SHENZHENSHIXINZHONGXIN TECHNOLOGY.CO.,LTD 2：External View Drawing Picture of antenna Length 15mm and Width 6mm 3：Measurement Result 3.1 Return Loss (S11 ) 3.2 Smith Chart 3.3 Gain

DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23122510FW1 FCCID:2ARQZ-M890BT Page1of61 AppendixA RFTestDataforBT(BDR/EDR)(ConductedMeasurement) ProductName:WirelessCommunicationHeadset TradeMark:MAIRDI TestModel:M890BT EnvironmentalConditions Temperature: 24.6C RelativeHumidity:52.4% ATMPressure:101Kpa TestEngineer:SimbaHuang Supervisedby:SealChen DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23122510FW1 FCCID:2ARQZ-M890BT Page2of61 Contents Page COVERPAGE 1DutyCycle........................................................................................................................................................................................3 1.1TestResult............................................................................................................................................................................3 1.2TestGraphs...........................................................................................................................................................................4 2MaximumConductedPeakOutputPower........................................................................................................................................9 2.1TestResult............................................................................................................................................................................9 2.2TestGraphs.........................................................................................................................................................................10 320dBBandwidth..............................................................................................................................................................................15 3.1TestResult..........................................................................................................................................................................15 3.2TestGraphs.........................................................................................................................................................................16 4CarrierFrequencySeparation.........................................................................................................................................................21 4.1TestResult..........................................................................................................................................................................21 4.2TestGraphs.........................................................................................................................................................................22 5HoppingChannelNumber...............................................................................................................................................................24 5.1TestResult..........................................................................................................................................................................24 5.2TestGraphs.........................................................................................................................................................................25 6DwellTime......................................................................................................................................................................................27 6.1TestResult..........................................................................................................................................................................27 6.2TestGraphs.........................................................................................................................................................................28 7RFConductedSpuriousEmissions.................................................................................................................................................31 7.1TestResult..........................................................................................................................................................................31 7.2TestGraphs.........................................................................................................................................................................32 8Band-edgeforRFConductedEmissions........................................................................................................................................41 8.1TestResult..........................................................................................................................................................................41 8.2TestGraphs.........................................................................................................................................................................42 9Restrict-bandband-edgemeasurements........................................................................................................................................54 9.1TestResult..........................................................................................................................................................................54 9.2TestGraphs.........................................................................................................................................................................56 DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23122510FW1 FCCID:2ARQZ-M890BT Page3of61 1DutyCycle 1.1TestResult ModeFrequency(MHz)DutyCycle(%)Correction Factor 1/T(kHz) 1-DH1240231.25.062.63 1-DH1244131.684.992.56 1-DH1248031.25.062.63 2-DH12402324.952.56 2-DH1244132.014.952.56 2-DH1248031.944.962.56 3-DH1240232.054.942.56 3-DH12441324.952.56 3-DH12480324.952.56 DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23122510FW1 FCCID:2ARQZ-M890BT Page4of61 1.2TestGraphs TestGraphs 1-DH12402MHz 1-DH12441MHz DongguanYaxu(AiT)TechnologyLimited ReportNo.…

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DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23122510FW1 FCCID:2ARQZ-M890BT Page38of61 8DPSK_LCH_Graphs Pref Puw DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23122510FW1 FCCID:2ARQZ-M890BT Page39of61 8DPSK_MCH_Graphs Pref Puw DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23122510FW1 FCCID:2ARQZ-M890BT Page40of61 8DPSK_HCH_Graphs Pref Puw DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23122510FW1 FCCID:2ARQZ-M890BT Page41of61 8Band-edgeforRFConductedEmissions 8.1TestResult Mode Channe l Carrier Frequency [MHz] Frequenc yHopping MaxSpurious Level[dBc] Limit [dBc] Verdict GFSK LCH2402 Off-55.24-20Pass On-53.63-20Pass HCH2480 Off-56.95-20Pass On-56.16-20Pass π/4DQPSK LCH2402 Off-54.96-20Pass On-53.79-20Pass HCH2480 Off-46.5-20Pass On-47.31-20Pass 8DPSK LCH2402 Off-56.3-20Pass On-53.54-20Pass HCH2480 Off-48.37-20Pass On-49.56-20Pass DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23122510FW1 FCCID:2ARQZ-M890BT Page42of61 8.2TestGraphs TestGraphs Pref GFSK/LCH/NoHop DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23122510FW1 FCCID:2ARQZ-M890BT Page43of61 Ref GFSK/LCH/Hop DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23122510FW1 FCCID:2ARQZ-M890BT Page44of61 Ref GFSK/HCH/NoHop DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23122510FW1 FCCID:2ARQZ-M890BT Page45of61 Ref. GFSK/HCH/Hop DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23122510FW1 FCCID:2ARQZ-M890BT Page46of61 Ref π/4DQPSK/LCH/No Hop DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23122510FW1 FCCID:2ARQZ-M890BT Page47of61 Ref π/4DQPSK/LCH/Hop DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23122510FW1 FCCID:2ARQZ-M890BT Page48of61 Ref π/4DQPSK/HCH/No Hop DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23122510FW1 FCCID:2ARQZ-M890BT Page49of61 Ref π/4DQPSK/HCH/Hop DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23122510FW1 FCCID:2ARQZ-M890BT Page50of61 Ref 8DPSK/LCH/NoHop DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23122510FW1 FCCID:2ARQZ-M890BT Page51of61 Ref 8DPSK/LCH/Hop DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23122510FW1 FCCID:2ARQZ-M890BT Page52of61 Ref 8DPSK/HCH/NoHop DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23122510FW1 FCCID:2ARQZ-M890BT Page53of61 Ref 8DPSK/HCH/Hop DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23122510FW1 FCCID:2ARQZ-M890BT Page54of61 9Restrict-bandband-edgemeasurements 9.1 TestResult Test Mode HoppingFreq. Power [dBm] Gain Duty Factor E [dBuV/m] Detector Limit [dBuV/m] Verdict GFSK Off2310.0-49.672-47.59PEAK74Pass Off2310.0-55.7925.0646.53AV54Pass Off2310.96-46.872-50.39PEAK74Pass Off2342.16-53.9325.0648.39AV54Pass Off2390.0-50.242-47.02PEAK74Pass Off2390.0-56.6725.0645.65AV54Pass Off2483.5-48.792-48.47PEAK74Pass Off2483.5-55.4925.0646.83AV54Pass Off2496.88-46.592-50.67PEAK74Pass Off2483.512-55.5125.0646.81AV54Pass Off2500.0-48.252-49.01PEAK74Pass Off2500.0-56.3525.0645.97AV54Pass π/4DQPSK Off2310.0-49.282-47.98PEAK74Pass Off2310.0-56.824.9545.41AV54Pass Off2387.472-45.842-51.42PEAK74Pass Off2338.512-53.5224.9548.69AV54Pass Off2390.0-49.262-48PEAK74Pass Off2390.0-56.724.9545.51AV54Pass Off2483.5-48.412-48.85PEAK74Pass Off2483.5-56.224.9646.02AV54Pass Off2491.936-46.672-50.59PEAK74Pass Off2491.384-55.4424.9646.78AV54Pass Off2500.0-48.92-48.36PEAK74Pass Off2500.0-55.624.9646.62AV54Pass 8DPSK Off2310.0-48.672-48.59PEAK74Pass Off2310.0-56.6624.9445.54AV54Pass Off2340.144-45.052-52.21PEAK74Pass Off2343.888-54.3324.9447.87AV54Pass DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23122510FW1 FCCID:2ARQZ-M890BT Page55of61 Off2390.0-48.332-48.93PEAK74Pass Off2390.0-56.524.9445.7AV54Pass Off2483.5-48.392-48.87PEAK74Pass Off2483.5-56.0124.9546.2AV54Pass Off2484.472-45.682-51.58PEAK74Pass Off2499.76-55.2624.9546.95AV54Pass Off2500.0-49.272-47.99PEAK74Pass Off2500.0-55.324.9546.91AV54Pass DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23122510FW1 FCCID:2ARQZ-M890BT Page56of61 9.2TestGraphs Restrict-bandband-edgemeasurements_HoppingOff_GFSK_PEAK(LowChannel) Restrict-bandband-edgemeasurements_HoppingOff_GFSK_Average(LowChannel) DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23122510FW1 FCCID:2ARQZ-M890BT Page57of61 Restrict-bandband-edgemeasurements_HoppingOff_GFSK_PEAK(HighChannel) Restrict-bandband-edgemeasurements_HoppingOff_GFSK_Average(HighChannel) DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23122510FW1 FCCID:2ARQZ-M890BT Page58of61 Restrict-bandband-edgemeasurements_HoppingOff_π/4-DQPSK_PEAK(LowChannel) Restrict-bandband-edgemeasurements_HoppingOff_π/4-DQPSK_Average(LowChannel) DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23122510FW1 FCCID:2ARQZ-M890BT Page59of61 Restrict-bandband-edgemeasurements_HoppingOff_π/4-DQPSK_PEAK(HighChannel) Restrict-bandband-edgemeasurements_HoppingOff_π/4-DQPSK_Average(HighChannel) DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23122510FW1 FCCID:2ARQZ-M890BT Page60of61 Restrict-bandband-edgemeasurements_HoppingOff_8DPSK_PEAK(LowChannel) Restrict-bandband-edgemeasurements_HoppingOff_8DPSK_Average(LowChannel) DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23122510FW1 FCCID:2ARQZ-M890BT Page61of61 Restrict-bandband-edgemeasurements_HoppingOff_8DPSK_PEAK(HighChannel) Restrict-bandband-edgemeasurements_HoppingOff_8DPSK_Average(HighChannel) ---TheEnd---

Page1of2FCCID:2ARQZ-M890BT DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. TestSetupPhoto RadiatedEmission Page2of2FCCID:2ARQZ-M890BT DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. ConductedEmission ------End------