2BE4A-MZ47Headworn Bluetooth earphones

FCCSTATEMENT: ThisdevicecomplieswithPart15oftheFCCRules.Operationissubjecttothefollowing twoconditions: Thisdevicemaynotcauseharmfulinterference,and Thisdevicemustacceptanyinterferencereceived,includinginterferencethatmaycause undesiredoperation. Warning:Changesormodificationsnotexpresslyapprovedbythepartyresponsiblefor compliancecouldvoidtheuser'sauthoritytooperatetheequipment. NOTE:ThisequipmenthasbeentestedandfoundtocomplywiththelimitsforaClassB digitaldevice,pursuanttoPart15oftheFCCRules.Theselimitsaredesignedtoprovide reasonableprotectionagainstharmfulinterferenceinaresidentialinstallation.This equipmentgeneratesusesandcanradiateradiofrequencyenergyand,ifnotinstalledand usedinaccordancewiththeinstructions,maycauseharmfulinterferencetoradio communications.However,thereisnoguaranteethatinterferencewillnotoccurina particularinstallation.Ifthisequipmentdoescauseharmfulinterferencetoradioor televisionreception,whichcanbedeterminedbyturningtheequipmentoffandon,the userisencouragedtotrytocorrecttheinterferencebyoneormoreofthefollowing measures: Reorientorrelocatethereceivingantenna. Increasetheseparationbetweentheequipmentandreceiver. Connecttheequipmentintoanoutletonacircuitdifferentfromthattowhichthereceiveris connected. Consultthedealeroranexperiencedradio/TVtechnicianforhelp. RFwarningstatement: ThedevicehasbeenevaluatedtomeetgeneralRFexposurerequirement.Thedevicecan beusedinportableexposureconditionwithoutrestriction.

-SHENZHENSHILONGGANGQUSHUNHONGRUIDIANZIGOGNZUOSHI- TheinformationprovidedinthisletterisbasedonthereferencedrulepartsofTitle47oftheCFRaswellasKDB986446D01. FederalCommunicationsCommission AuthorizationandEvaluationDivision EquipmentAuthorizationBranch 7435OaklandMillsRoad Columbia,MD21046 3/29/24 Towhomitmayconcern: We,[SHENZHENSHILONGGANGQUSHUNHONGRUIDIANZIGOGNZUOSHI],herebycertifythatthe equipmentforwhichauthorizationissought(FCCID:[2BE4A-MZ47])isnot“covered”equipment prohibitedfromreceivinganequipmentauthorizationpursuantto§2.903oftheFCCrules. Wealsocertifythat,asofthedateofthefilingoftheapplication,wearenotidentifiedontheCovered List(https://www.fcc.gov/supplychain/coveredlist)asanentityproducing“covered”equipment. Bysigningthisform,weconfirmtheaboveandthatweareawareoftheapplicationrequirements listedunder§2.911(b)and(d)(5)and(6). Sincerely, Signature [JIEHENGZHUANG] [JINGLI] [SHENZHENSHILONGGANGQUSHUNHONGRUIDIANZIGOGNZUOSHI] 6 2 _ [ m o d e l ] C o v e r e d E q u _ 2 . 9 1 1 ( d ) ( 5 ) ( i ) a n d ( i i ) - U , V 0 2

ProjectNo.:18220WC400267Page 1 of 7 AppendixII--ExternalPhotograph MZ47 MZ-08R P47 Y08 ProjectNo.:18220WC400267Page 2 of 7 Y08 MZ-08M MZ-08R ProjectNo.:18220WC400267Page 3 of 7 MZ47 MZ47 ProjectNo.:18220WC400267Page 4 of 7 ProjectNo.:18220WC400267Page 5 of 7 ProjectNo.:18220WC400267Page 6 of 7 ProjectNo.:18220WC400267Page 7 of 7

LabelLocationOnEUT Label ProductName:HeadwornBluetoothearphones ModelNo.:MZ47 FCCID:2BE4A-MZ47

ProjectNo.:18220WC400267Page 1 of 4 AppendixIII--InternalPhotograph ProjectNo.:18220WC400267Page 2 of 4 ProjectNo.:18220WC400267Page 3 of 4 ProjectNo.:18220WC400267Page 4 of 4 ANT

RFEXPOSUREEVALUATION FCCID:2BE4A-MZ47 AccordingtoKDB447498D01MobileandPortableDevicesRFExposureProcedures andEquipmentAuthorizationPoliciesv06. AccordingtoFCC1.1310:Thecriterialistedinthefollowingtableshallbeused toevaluatetheenvironmentimpactofhumanexposuretoradiofrequency(RF) Radiationasspecifiedin§1.1307(b): RoutineSARevaluationreferstothatspecificallyrequiredby§2.1093,using measurementsorcomputersimulation.WhenroutineSARevaluationisnot required,portabletransmitterswithoutputpowergreaterthantheapplicable lowthresholdrequireSARevaluationtoqualifyforTCBapproval. Channel (MHz) Maximum output power (dBm) Tuneup tolerance (dBm) MaxTuneUp Power(dBm) Distance (mm) Calculation results Limit Operating Mode 2402-0.06-0.06 ±1 0.9450.3853 GFSK2441-0.06-0.06±10.9450.3883 2480-0.20-0.20±10.8050.3793 24020.800.80 ±1 1.8050.4693 π/4-DQPSK24410.780.78±11.7850.4713 24800.680.68±11.6850.4643 24021.261.26 ±1 2.2650.5223 8DPSK24411.261.26±12.2650.5263 24801.181.18±12.1850.5203 Result:NoStandaloneSARtestisrequired.

Page1of52 AppendixTestData ReportNo.:18220WC40026701TestSampleNo.:1-2-2 StartTestDate:2024.2.19FinishTestDate:2024.2.19 TestEngineer:Auditor: Temperature:25.3 °C RelativeHumidity:48% Pressure:101kPa AppendixA:20dBEmissionBandwidth TestResult TestModeAntennaFrequency[MHz] 20db EBW[MHz] FL[MHz]FH[MHz]Limit[MHz]Verdict DH5Ant1 24021.0112401.4722402.483------ 24411.0322440.4572441.489------ 24801.0232479.4602480.483------ 2DH5Ant1 24021.3352401.3102402.645------ 24411.3292440.3162441.645------ 24801.3142479.3222480.636------ 3DH5Ant1 24021.3052401.3312402.636------ 24411.2932440.3342441.627------ 24801.3112479.3252480.636------ Page2of52 TestGraphs DH5_Ant1_2402 DH5_Ant1_2441 DH5_Ant1_2480 Page3of52 2DH5_Ant1_2402 2DH5_Ant1_2441 Page4of52 2DH5_Ant1_2480 3DH5_Ant1_2402 3DH5_Ant1_2441 Page5of52 3DH5_Ant1_2480 Page6of52 AppendixB:OccupiedChannelBandwidth TestResult TestModeAntennaFrequency[MHz] OCB[MHz] FL[MHz]FH[MHz]Limit[MHz]Verdict DH5Ant1 24020.858192401.54762402.4058------ 24410.895312440.53472441.4301------ 24800.896472479.53112480.4276------ 2DH5Ant1 24021.18722401.38792402.5751------ 24411.19692440.39062441.5875------ 24801.19422479.38882480.5830------ 3DH5Ant1 24021.19192401.38622402.5781------ 24411.19512440.38382441.5789------ 24801.19712479.38232480.5794------ Page7of52 TestGraphs DH5_Ant1_2402 DH5_Ant1_2441 DH5_Ant1_2480 Page8of52 2DH5_Ant1_2402 2DH5_Ant1_2441 Page9of52 2DH5_Ant1_2480 3DH5_Ant1_2402 3DH5_Ant1_2441 Page10of52 3DH5_Ant1_2480 Page11of52 AppendixC:Maximumconductedoutputpower TestResultPeak Test Mode AntennaFrequency[MHz] ConductedPeak Power[dBm] Conducted Limit[dBm] Verdict DH5Ant1 2402-0.06≤20.97PASS 2441-0.06≤20.97PASS 2480-0.2≤20.97PASS 2DH5Ant1 24020.8≤20.97PASS 24410.78≤20.97PASS 24800.68≤20.97PASS 3DH5Ant1 24021.26≤20.97PASS 24411.26≤20.97PASS 24801.18≤20.97PASS Page12of52 TestGraphs DH5_Ant1_2402 DH5_Ant1_2441 DH5_Ant1_2480 Page13of52 2DH5_Ant1_2402 2DH5_Ant1_2441 Page14of52 2DH5_Ant1_2480 3DH5_Ant1_2402 3DH5_Ant1_2441 Page15of52 3DH5_Ant1_2480 Page16of52 AppendixD:Carrierfrequencyseparation TestResult TestModeAntennaFrequency[MHz]Result[MHz]Limit[MHz]Verdict DH5Ant1Hop0.99≥0.688PASS 2DH5Ant1Hop1.068≥0.890PASS 3DH5Ant1Hop1.006≥0.874PASS Page17of52 TestGraphs DH5_Ant1_Hop 2DH5_Ant1_Hop 3DH5_Ant1_Hop Page18of52 Page19of52 AppendixE:Timeofoccupancy TestResult TestModeAntennaFrequency[MHz] BurstWidth [ms] TotalHops [Num] Result[s]Limit[s]Verdict DH1Ant1Hop0.3743160.118≤0.4PASS DH3Ant1Hop1.6301580.258≤0.4PASS DH5Ant1Hop2.8791000.288≤0.4PASS 2DH1Ant1Hop0.3843170.122≤0.4PASS 2DH3Ant1Hop1.6371630.267≤0.4PASS 2DH5Ant1Hop2.884930.268≤0.4PASS 3DH1Ant1Hop0.3853170.122≤0.4PASS 3DH3Ant1Hop1.6351660.271≤0.4PASS 3DH5Ant1Hop2.8871090.315≤0.4PASS Page20of52 TestGraphs DH1_Ant1_Hop DH3_Ant1_Hop Page21of52 DH5_Ant1_Hop Page22of52 2DH1_Ant1_Hop 2DH3_Ant1_Hop Page23of52 2DH5_Ant1_Hop Page24of52 3DH1_Ant1_Hop 3DH3_Ant1_Hop Page25of52 3DH5_Ant1_Hop Page26of52 Page27of52 AppendixF:Numberofhoppingchannels TestResult TestModeAntennaFrequency[MHz]Result[Num]Limit[Num]Verdict DH5Ant1Hop79≥15PASS 2DH5Ant1Hop79≥15PASS 3DH5Ant1Hop79≥15PASS Page28of52 TestGraphs DH5_Ant1_Hop 2DH5_Ant1_Hop 3DH5_Ant1_Hop Page29of52 Page30of52 AppendixG:Bandedgemeasurements TestResult TestModeAntennaChNameFrequency[MHz] RefLevel [dBm] Result [dBm] Limit [dBm] Verdict DH5Ant1 Low2402-0.20-51.57≤-20.2PASS High2480-0.61-53.46≤-20.61PASS LowHop_2402-0.44-52.83≤-20.44PASS HighHop_2480-0.29-50.92≤-20.29PASS 2DH5Ant1 Low2402-0.35-52.79≤-20.35PASS High2480-1.61-53.33≤-21.61PASS LowHop_2402-3.99-40.88≤-23.99PASS HighHop_2480-0.55-52.81≤-20.55PASS 3DH5Ant1 Low2402-1.75-53.74≤-21.75PASS High2480-1.37-52.96≤-21.37PASS LowHop_2402-4.07-52.51≤-24.07PASS HighHop_2480-3.56-52.82≤-23.56PASS Page31of52 TestGraphs DH5_Ant1_Low_2402 DH5_Ant1_High_2480 DH5_Ant1_Low_Hop_2402 Page32of52 DH5_Ant1_High_Hop_2480 2DH5_Ant1_Low_2402 Page33of52 2DH5_Ant1_High_2480 2DH5_Ant1_Low_Hop_2402 2DH5_Ant1_High_Hop_2480 Page34of52 3DH5_Ant1_Low_2402 3DH5_Ant1_High_2480 Page35of52 3DH5_Ant1_Low_Hop_2402 3DH5_Ant1_High_Hop_2480 Page36of52 AppendixH:ConductedSpuriousEmission TestResult TestModeAntennaFrequency[MHz] FreqRange [MHz] RefLevel [dBm] Result [dBm] Limit [dBm] Verdict DH5Ant1 2402 Reference-0.86-0.86---PASS 30~1000-0.86-59.82≤-20.86PASS 1000~26500-0.86-43.29≤-20.86PASS 2441 Reference-0.92-0.92---PASS 30~1000-0.92-57.76≤-20.92PASS 1000~26500-0.92-45.71≤-20.92PASS 2480 Reference-1.09-1.09---PASS 30~1000-1.09-59.64≤-21.09PASS 1000~26500-1.09-40.9≤-21.09PASS 2DH5Ant1 2402 Reference-0.29-0.29---PASS 30~1000-0.29-60.41≤-20.29PASS 1000~26500-0.29-44.08≤-20.29PASS 2441 Reference-3.69-3.69---PASS 30~1000-3.69-60.06≤-23.69PASS 1000~26500-3.69-43.95≤-23.69PASS 2480 Reference-0.78-0.78---PASS 30~1000-0.78-60.64≤-20.78PASS 1000~26500-0.78-43.96≤-20.78PASS 3DH5Ant1 2402 Reference-1.20-1.20---PASS 30~1000-1.20-57.61≤-21.2PASS 1000~26500-1.20-43.82≤-21.2PASS 2441 Reference-0.73-0.73---PASS 30~1000-0.73-54.44≤-20.73PASS 1000~26500-0.73-45.28≤-20.73PASS 2480 Reference-3.17-3.17---PASS 30~1000-3.17-59.21≤-23.17PASS 1000~26500-3.17-43.81≤-23.17PASS Page37of52 TestGraphs DH5_Ant1_2402_0~Reference DH5_Ant1_2402_30~1000 DH5_Ant1_2402_1000~26500 Page38of52 DH5_Ant1_2441_0~Reference DH5_Ant1_2441_30~1000 Page39of52 DH5_Ant1_2441_1000~26500 DH5_Ant1_2480_0~Reference DH5_Ant1_2480_30~1000 Page40of52 DH5_Ant1_2480_1000~26500 2DH5_Ant1_2402_0~Reference Page41of52 2DH5_Ant1_2402_30~1000 2DH5_Ant1_2402_1000~26500 2DH5_Ant1_2441_0~Reference Page42of52 2DH5_Ant1_2441_30~1000 2DH5_Ant1_2441_1000~26500 Page43of52 2DH5_Ant1_2480_0~Reference 2DH5_Ant1_2480_30~1000 2DH5_Ant1_2480_1000~26500 Page44of52 3DH5_Ant1_2402_0~Reference 3DH5_Ant1_2402_30~1000 Page45of52 3DH5_Ant1_2402_1000~26500 3DH5_Ant1_2441_0~Reference 3DH5_Ant1_2441_30~1000 Page46of52 3DH5_Ant1_2441_1000~26500 3DH5_Ant1_2480_0~Reference Page47of52 3DH5_Ant1_2480_30~1000 3DH5_Ant1_2480_1000~26500 Page48of52 AppendixI:DutyCycle TestResult TestModeAntenna Frequency[ MHz] ONTime [ms] Period [ms] DutyCycle [%] DutyCycle Facto…

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ReportNo.:18220WC40026701FCCID:2BE4A-MZ47Page1of41 FCCTestReport Applicant: SHENZHENSHILONGGANGQUSHUNHONGRUID IANZIGOGNZUOSHI Address: GUANHXIZHUANGZHUZIZHIQULAIBINGSHIXIA NGZHOUXIANG DONGGANGDADAO107HAODIANZICHANG, GUANGXI,545800,China ProductName:HeadwornBluetoothearphones ReportDate:Mar.29,2024 ShenzhenAnbotekComplianceLaboratoryLimited ReportNo.:18220WC40026701FCCID:2BE4A-MZ47Page2of41 Contents 1.GeneralInformation.................................................................................................................................6 1.1.ClientInformation...........................................................................................................................6 1.2.DescriptionofDevice(EUT)..........................................................................................................6 1.3.AuxiliaryEquipmentUsedDuringTest..........................................................................................7 1.4.Operationchannellist....................................................................................................................8 1.5.DescriptionofTestModes.............................................................................................................9 1.6.MeasurementUncertainty.............................................................................................................9 1.7.TestSummary..............................................................................................................................10 1.8.DescriptionofTestFacility...........................................................................................................11 1.9.Disclaimer.....................................................................................................................................11 1.10.TestEquipmentList...................................................................................................................12 2.Antennarequirement..............................................................................................................................14 2.1.Conclusion...................................................................................................................................14 3.ConductedEmissionatACpowerline..................................................................................................15 3.1.EUTOperation.............................................................................................................................15 3.2.TestSetup....................................................................................................................................15 3.3.TestData......................................................................................................................................16 4.OccupiedBandwidth..............................................................................................................................18 4.1.EUTOperation.............................................................................................................................18 4.2.TestSetup....................................................................................................................................19 4.3.TestData......................................................................................................................................19 5.MaximumConductedOutputPower......................................................................................................20 5.1.EUTOperation.............................................................................................................................20 5.2.TestSetup....................................................................................................................................21 5.3.TestData......................................................................................................................................21 6.ChannelSeparation...............................................................................................................................22 6.1.EUTOperation.............................................................................................................................22 6.2.TestSetup....................................................................................................................................22 6.3.TestData......................................................................................................................................22 7.NumberofHoppingFrequencies...........................................................................................................23 7.1.EUTOperation.............................................................................................................................23 7.2.TestSetup....................................................................................................................................23 7.3.TestData......................................................................................................................................24 8.DwellTime..............................................................................................................................................25 8.1.EUTOperation.............................................................................................................................26 8.2.TestSetup....................................................................................................................................26 8.3.TestData......................................................................................................................................26 9.Emissionsinnon-restrictedfrequencybands.......................................................................................27 9.1.EUTOperation....................................................................................................…

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version01 SHENZHENSHILONGGANGQUSHUNHONGRUIDIANZIGOGNZUOSHI DeclarationconcerningAntennaSpecification Itisherebydeclaredthattheproduct ModelNo.:MZ47,Y08,MZ-08R,P47,MZ-08M FCCID:2BE4A-MZ47 fulfillstherequirementinFCCtestrelatingtotheantennatype. ThedevicespecifiedaboveconfirmstotheFCCrecommendationsforinternalantennatype(s) describedbelow: ModelNo.ofantenna:2.4GANT Typeofantenna:PCBAntenna Gainoftheantenna:-0.58dBi Frequencyrange:2400-2500MHz Themountingoftheantennaisfixedtotheradiomoduleandnootherantennashouldbeused. Companyname:SHENZHENSHILONGGANGQUSHUNHONGRUIDIANZIGOGNZUOSHI Address:GUANHXIZHUANGZHUZIZHIQULAIBINGSHIXIANGZHOUXIANG DONGGANGDADAO107HAODIANZICHANG,GUANGXI,545800,China City:GUANGXI ZIP/Postalcode:545800 Country:China Place:Date:4/2/2024 Signature:

Inverted F Antenna Specification ITEMANT SPEC Model Name2.4G ANT Center Frequency HorizontalVertical 2400MHz2400MHz2500MHz2400MHz2400MHz2500MHz -1.26-0.76-0.58-5.25-2.46-1.86 Gain-0.58 PolarizationHorizontal and Vertical Azimuth Beam Pattern Omni-directional Impedance50 Ohm Antenna Length14.10mm ManufactureZHUHAI JIELI TECHNOLOGY CO.,LTD 333 Kexing Rd,Nanping Town,Xiangzhou Dist,Zhuhai City,Guangdong Province,China Antenna Photo & Length (mm)

ProjectNo.:18220WC400267Page 1 of 2 AppendixI--TestSetupPhotograph_RF ConductedEmissionatACpowerline Emissionsinfrequencybands(below1GHz) ProjectNo.:18220WC400267Page 2 of 2 Emissionsinfrequencybands(Above1GHz)