2BCHU-MICACEK95Wireless lapel microphone

-Shenzhen Xiaogu Technology Co., LTD - The information provided in this letter is based on the referenced rule parts of Title 47 of the CFR as well as KDB 986446 D01. An expiration date for this letter does not exist. In case the U.S. agent changes, the grantee is obligated to notify the FCC within 30 days via the granting TCB. Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 8/16/2023 U.S. Agent Designation Shenzhen Xiaogu Technology Co., LTD acknowledges their consent for the following contact located in the United States to act as their agent for service of process for the equipment for which authorization is sought (FCC ID: 2BCHU-MICACEK95): Name and company of U.S. agent: Linkwld LLC Physical U.S. address of agent: 1942 Broadway St. STE 314C, Boulder, CO, 80302, US FRN of U.S. agent: 0033625682 Email address of U.S. agent: [email protected] Linkwld LLC acknowledges their obligation to accept service of process on behalf of Shenzhen Xiaogu Technology Co., LTD. Shenzhen Xiaogu Technology Co., LTDwith the FRN [0034127068] accepts its obligation to maintain an agent for service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. By signing this form, we confirm the above and that we are aware of the application requirements listed under § 2.911(d)(7). Sincerely, Signature [Name]Nick Wang [Title]manager [Company]Shenzhen Xiaogu Technology Co., LTD Signature [Name of U.S. agent] Timothy Zhu [Title of U.S. agent]Manager [Company of U.S. agent] Linkwld LLC 48_[model] US_Agent_2.911(d)(7) - U, V04

-ShenzhenXiaoguTechnologyCo.,LTD- TheinformationprovidedinthisletterisbasedonthereferencedrulepartsofTitle47oftheCFRaswellasKDB986446D01. FederalCommunicationsCommission AuthorizationandEvaluationDivision EquipmentAuthorizationBranch 7435OaklandMillsRoad Columbia,MD21046 8/23/23 Towhomitmayconcern: We,[ShenzhenXiaoguTechnologyCo.,LTD],herebycertifythattheequipmentforwhich authorizationissought(FCCID:[2BCHU-MICACEK95])isnot“covered”equipmentprohibitedfrom receivinganequipmentauthorizationpursuantto§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 [NICKwang] [PM] [ShenzhenXiaoguTechnologyCo.,LTD] 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.:18220WC301609Page 1 of 10 AppendixII--ExternalPhotograph ProjectNo.:18220WC301609Page 2 of 10 ProjectNo.:18220WC301609Page 3 of 10 ProjectNo.:18220WC301609Page 4 of 10 ProjectNo.:18220WC301609Page 5 of 10 ProjectNo.:18220WC301609Page 6 of 10 ProjectNo.:18220WC301609Page 7 of 10 ProjectNo.:18220WC301609Page 8 of 10 ProjectNo.:18220WC301609Page 9 of 10 ProjectNo.:18220WC301609Page 10 of 10

LabelLocationOnEUT Label ProductName:Wirelesslapelmicrophone ModelNo.:MicAceK95 FCCID:2BCHU-MICACEK95

ProjectNo.:18220WC301609Page 1 of 6 AppendixIII--InternalPhotograph ProjectNo.:18220WC301609Page 2 of 6 ProjectNo.:18220WC301609Page 3 of 6 ProjectNo.:18220WC301609Page 4 of 6 SRDTXANT BTANT ProjectNo.:18220WC301609Page 5 of 6 SRDRXANT ProjectNo.:18220WC301609Page 6 of 6

version01 ShenzhenXiaoguTechnologyCo.,LTD DeclarationconcerningAntennaSpecification Itisherebydeclaredthattheproduct ModelNo.:MicAceK95 FCCID:2BCHU-MICACEK95 fulfillstherequirementinFCCtestrelatingtotheantennatype. ThedevicespecifiedaboveconfirmstotheFCCrecommendationsfor internal antennatype(s) describedbelow: BDR+EDR: ModelNo.ofantenna:CA-C01 Typeofantenna:CeramicAntenna Gainoftheantenna:2.1dBi Frequencyrange:2400-2500MHz SRD: ModelNo.ofantenna:CA-C01 Typeofantenna:CeramicAntenna Gainoftheantenna:2.14dBi Frequencyrange:2400-2500MHz Themountingoftheantennaisfixedtotheradiomoduleandnootherantennashouldbeused. Companyname:ShenzhenXiaoguTechnologyCo.,LTD Address:601,6thFloor,ChuangfengCenter,No.25,EastRing1stRoad,Yousong Community,LonghuaStreet,LonghuaDistrict,Shenzhen518000China City:LonghuaDistrict,Shenzhen ZIP/Postalcode:518000 Country:China Place:Date:8/23/2023 Signature:

1 Patchantennamatching debuggingreport 陈鹏飞18028016875 广州寒武纪电子科技有限公司 2023/6/1 2320 Customername:ShenzhenLianhongxin industry, antennatype:CA-C01patchantenna, debuggingmethod:matchingdevicedebugging, testingtime:202306.01 testingequipment:vectorNetworkanalyzer, microwaveanechoicchamber GuangzhouCambrianElectronicTechnologyCo.,Ltd.,contact:ChenPengfei 4 2 2.4GCA-C01 Position2 1 GuangzhouCambrianElectronicTechnologyCo.,Ltd.,contact:ChenPengfei 3 2 Note:ThevalueofperipheraldevicesrequiredbytheRFchip referencedesignshouldbeusedaccordingtothechipmanufacturer's referencedesign.Theaboveantennamatchingdevicesshallnotbe replacedbyeachother 3 GuangzhouCambrianElectronicTechnologyCo.,LTD.Contactperson:ChenPengfei 4 frequency (MHz) gain (dBi) efficiency (%) GuangzhouCambrianElectronicTechnologyCo.,LTD.Contactperson:ChenPengfei 5 24000.8642.1 24101.4145.91 24201.6346.84 24301.948.64 24402.150.28 24501.9348.36 24601.7546.75 24701.5444.66 24801.6244.22 24901.5341.61 25001.338.82 4 Afterthedebuggingoftheimpedancematchingdevice,alltheindexes ofthebuilt-inpatchantennaofthisproductmeetthedesign requirementsofthebuilt-inantenna。 2.4GCA-C01 Position3 GuangzhouCambrianElectronicTechnologyCo.,LTD.Contactperson:ChenPengfei 6 1 2Thematchingnetworkoftheantennasisasfollows GuangzhouCambrianElectronicTechnologyCo.,LTD.Contactperson:ChenPengfei 7 Note:ThevalueofperipheraldevicesrequiredbytheRFchip referencedesignshouldbeusedaccordingtothechipmanufacturer's referencedesign.Theaboveantennamatchingdevicesshallnotbe replacedbyeachother 3 returnloss GuangzhouCambrianElectronicTechnologyCo.,Ltd.,contact:ChenPengfei 8 frequency 频率(MHz) gain 增益(dBi) efficiency 效率(%) 24001.8253.09 24101.953.64 24202.0254.84 24302.1455.28 2440253.74 24501.953.36 24601.8452.16 24701.7751.75 24801.7351.92 24901.5449.66 25001.6351.84 directionaldiagram GuangzhouCambrianElectronicTechnologyCo.,Ltd.,contact:ChenPengfei 9 4 Afterthedebuggingoftheimpedancematchingdevice,alltheindexes ofthebuilt-inpatchantennaofthisproductmeetthedesign requirementsofthebuilt-inantenna GuangzhouCambrianElectronicTechnologyCo.,LTD

RFEXPOSUREEVALUATION FCCID:2BCHU-MICACEK95 AccordingtoFCC1.1310:Thecriterialistedinthefollowingtableshallbeused toevaluatetheenvironmentimpactofhumanexposuretoradiofrequency(RF) Radiationasspecifiedin§1.1307(b): RoutineSARevaluationreferstothatspecificallyrequiredby§2.1093,using measurementsorcomputersimulation.WhenroutineSARevaluationisnot required,portabletransmitterswithoutputpowergreaterthantheapplicable lowthresholdrequireSARevaluationtoqualifyforTCBapproval. Channel (MHz) Maximum outputpower (dBm) Tuneup tolerance (dBm) MaxTuneUp Power(dBm) Distance (mm) Calculation results Limit Operating Mode 2402-0.38-0.38±10.6250.3583 BDR2441-0.03-0.03±10.9750.3913 24800.280.28 ±1 1.2850.4233 24020.460.46±11.4650.4343 EDR24410.830.83±11.8350.4763 24801.151.15 ±1 2.1550.5173 24020.710.71±11.7150.4603 EDR24411.081.08±12.0850.5043 24801.461.46 ±1 2.4650.5553 2402-0.72-0.72±10.2850.3313 SRD2441-0.36-0.36±10.6450.3623 24800.100.10 ±1 1.1050.4063 TheBDR+EDRandSRDcantransmitsimultaneously: =S BDR+EDR /Slimit-BDR+EDR+SSRD/Slimit-SRD =0.555/3+0.406/3 =0.3203 <1.0

Page1of52 AppendixTestData ReportNo.:18220WC30160901TestSampleNo.:1-2-2 StartTestDate:2023.08.08FinishTestDate:2023.08.14 TestEngineer:Auditor: Temperature:25.4 °C RelativeHumidity:48% Pressure:1012hPa AppendixA:20dBEmissionBandwidth TestResult TestModeAntennaFrequency[MHz] 20db EBW[MHz] FL[MHz]FH[MHz]Limit[MHz]Verdict DH5Ant1 24021.0532401.3672402.420------ 24411.0442440.3732441.417------ 24801.0712479.3432480.414------ 2DH5Ant1 24021.3202401.2382402.558------ 24411.3352440.2262441.561------ 24801.3472479.2202480.567------ 3DH5Ant1 24021.3052401.2442402.549------ 24411.3112440.2382441.549------ 24801.2992479.2412480.540------ 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 24020.940222401.41972402.3599------ 24410.964822440.40792441.3728------ 24800.979482479.40112480.3806------ 2DH5Ant1 24021.21652401.29572402.5122------ 24411.22052440.29032441.5108------ 24801.25602479.27342480.5294------ 3DH5Ant1 24021.22302401.27982402.5028------ 24411.22112440.27832441.4994------ 24801.24012479.27042480.5105------ 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 2402-0.38≤20.97PASS 2441-0.03≤20.97PASS 24800.28≤20.97PASS 2DH5Ant1 24020.46≤20.97PASS 24410.83≤20.97PASS 24801.15≤20.97PASS 3DH5Ant1 24020.71≤20.97PASS 24411.08≤20.97PASS 24801.46≤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 DH5Ant1Hop0.960≥0.714PASS 2DH5Ant1Hop0.952≥0.898PASS 3DH5Ant1Hop0.888≥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 DH1Ant1Hop0.3753190.12≤0.4PASS DH3Ant1Hop1.6311700.277≤0.4PASS DH5Ant1Hop2.8781170.337≤0.4PASS 2DH1Ant1Hop0.3853180.122≤0.4PASS 2DH3Ant1Hop1.6371560.255≤0.4PASS 2DH5Ant1Hop2.8841120.323≤0.4PASS 3DH1Ant1Hop0.3863180.123≤0.4PASS 3DH3Ant1Hop1.6351660.271≤0.4PASS 3DH5Ant1Hop2.8871020.294≤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 Low2402-0.79-55.07≤-20.79PASS High2480-0.18-54.12≤-20.18PASS LowHop_2402-0.90-55.27≤-20.9PASS HighHop_2480-0.13-55.54≤-20.13PASS 2DH5Ant1 Low2402-1.89-54.01≤-21.89PASS High2480-2.99-54.63≤-22.99PASS LowHop_2402-2.68-56.16≤-22.68PASS HighHop_2480-1.39-55.38≤-21.39PASS 3DH5Ant1 Low2402-1.80-53.47≤-21.8PASS High2480-0.43-53.66≤-20.43PASS LowHop_2402-0.95-55.6≤-20.95PASS HighHop_2480-1.07-54.3≤-21.07PASS 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-1.32-1.32---PASS 30~1000-1.32-68.78≤-21.32PASS 1000~26500-1.32-48.77≤-21.32PASS 2441 Reference-0.98-0.98---PASS 30~1000-0.98-68.67≤-20.98PASS 1000~26500-0.98-50.41≤-20.98PASS 2480 Reference-0.56-0.56---PASS 30~1000-0.56-68.5≤-20.56PASS 1000~26500-0.56-48.66≤-20.56PASS 2DH5Ant1 2402 Reference-4.40-4.40---PASS 30~1000-4.40-69.18≤-24.4PASS 1000~26500-4.40-47.24≤-24.4PASS 2441 Reference-1.40-1.40---PASS 30~1000-1.40-69.4≤-21.4PASS 1000~26500-1.40-48.83≤-21.4PASS 2480 Reference-1.19-1.19---PASS 30~1000-1.19-69.39≤-21.19PASS 1000~26500-1.19-47.75≤-21.19PASS 3DH5Ant1 2402 Reference-0.97-0.97---PASS 30~1000-0.97-69.15≤-20.97PASS 1000~26500-0.97-46.95≤-20.97PASS 2441 Reference-4.07-4.07---PASS 30~1000-4.07-69.25≤-24.07PASS 1000~26500-4.07-48.86≤-24.07PASS 2480 Reference-3.25-3.25---PASS 30~1000-3.25-68.87≤-23.25PASS 1000~26500-3.25-46.03≤-23.25PASS 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 TestModeAntennaFrequency[MHz] ONTime [ms] Period [ms] DutyCycle [%] DutyCycle Factor[d…

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ReportNo.:18220WC30160901FCCID:2BCHU-MICACEK95Page1of32 Code:AB-RF-05-b FCCTestReport Applicant:ShenzhenXiaoguTechnologyCo.,LTD Address: 601,6thFloor,ChuangfengCenter,No.25, EastRing1stRoad,Yousong Community,LonghuaStreet,Longhua District,Shenzhen518000China ProductName:Wirelesslapelmicrophone ReportDate:Aug.23,2023 ShenzhenAnbotekComplianceLaboratoryLimited ReportNo.:18220WC30160901FCCID:2BCHU-MICACEK95Page2of32 Code:AB-RF-05-b Contents 1.GeneralInformation ............................................................................................................................................6 1.1.ClientInformation ....................................................................................................................................6 1.2.DescriptionofDevice(EUT) ..................................................................................................................6 1.3.AuxiliaryEquipmentUsedDuringTest .................................................................................................7 1.4.DescriptionofTestConfiguration ..........................................................................................................7 1.5.DescriptionOfTestSetup ......................................................................................................................8 1.6.TestEquipmentList .................................................................................................................................9 1.7.MeasurementUncertainty ....................................................................................................................10 1.8.DescriptionofTestFacility ...................................................................................................................10 2.SummaryofTestResults .................................................................................................................................11 3.ConductedEmissionTest ................................................................................................................................12 3.1.TestStandardandLimit ........................................................................................................................12 3.2.TestSetup ...............................................................................................................................................12 3.3.TestProcedure .......................................................................................................................................12 3.4.TestData .................................................................................................................................................12 4.RadiationSpuriousEmissionandBandEdge .............................................................................................15 4.1.TestStandardandLimit ........................................................................................................................15 4.2.TestSetup ...............................................................................................................................................15 4.3.TestProcedure .......................................................................................................................................16 4.4.TestData .................................................................................................................................................17 5.MaximumPeakOutputPowerTest ...............................................................................................................25 5.1.TestStandardandLimit ........................................................................................................................25 5.2.TestSetup ...............................................................................................................................................25 5.3.TestProcedure .......................................................................................................................................25 5.4.TestData .................................................................................................................................................25 6.20dBOccupyBandwidthTest .........................................................................................................................26 6.1.TestStandard .........................................................................................................................................26 6.2.TestSetup ...............................................................................................................................................26 6.3.TestProcedure .......................................................................................................................................26 6.4.TestData .................................................................................................................................................26 7.CarrierFrequencySeparationTest ................................................................................................................27 7.1.TestStandardandLimit ........................................................................................................................27 7.2.TestSetup ...............................................................................................................................................27 7.3.TestProcedure .......................................................................................................................................27 7.4.TestData .................................................................................................................................................27 8.NumberofHoppingChannelTest ..................................................................................................................28 8.1.TestStandardandLimit ..............................…

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Page1of26 AppendixTestData ReportNo.:18220WC30160902TestSampleNo.:1-2-2 StartTestDate:2023.08.08FinishTestDate:2023.08.14 TestEngineer:Auditor: Temperature:25.4 °C RelativeHumidity:48% Pressure:1012hPa AppendixA:20dBEmissionBandwidth TestResult TestModeAntennaFrequency[MHz] 20db EBW[MHz] FL[MHz]FH[MHz]Limit[MHz]Verdict 2.4GAnt1 24021.0262401.3822402.408------ 24411.0562440.3612441.417------ 24801.0532479.3642480.417------ Page2of26 TestGraphs 2.4G_Ant1_2402 2.4G_Ant1_2441 2.4G_Ant1_2480 Page3of26 Page4of26 AppendixB:OccupiedChannelBandwidth TestResult TestModeAntennaFrequency[MHz] OCB[MHz] FL[MHz]FH[MHz]Limit[MHz]Verdict 2.4GAnt1 24020.945692401.42012402.3658------ 24410.965862440.40772441.3736------ 24800.974812479.40192480.3767------ Page5of26 TestGraphs 2.4G_Ant1_2402 2.4G_Ant1_2441 2.4G_Ant1_2480 Page6of26 Page7of26 AppendixC:Maximumconductedoutputpower TestResultPeak Test Mode AntennaFrequency[MHz] ConductedPeak Power[dBm] Conducted Limit[dBm] Verdict 2.4GAnt1 2402-0.72≤30PASS 2441-0.36≤30PASS 24800.10≤30PASS Page8of26 TestGraphs 2.4G_Ant1_2402 2.4G_Ant1_2441 2.4G_Ant1_2480 Page9of26 Page10of26 AppendixD:Carrierfrequencyseparation TestResult TestModeAntennaFrequency[MHz]Result[MHz]Limit[MHz]Verdict 2.4GAnt1Hop1.076≥1.056PASS Page11of26 TestGraphs 2.4G_Ant1_Hop Page12of26 AppendixE:Timeofoccupancy TestResult TestModeAntennaFrequency[MHz] BurstWidth [ms] TotalHops [Num] Result[s]Limit[s]Verdict 2.4GAnt1Hop2.8791110.32≤0.4PASS Page13of26 TestGraphs 2.4G_Ant1_Hop Page14of26 AppendixF:Numberofhoppingchannels TestResult TestModeAntennaFrequency[MHz]Result[Num]Limit[Num]Verdict 2.4GAnt1Hop79≥15PASS Page15of26 TestGraphs 2.4G_Ant1_Hop Page16of26 AppendixG:Bandedgemeasurements TestResult TestModeAntennaChNameFrequency[MHz] RefLevel [dBm] Result [dBm] Limit [dBm] Verdict 2.4GAnt1 Low2402-1.05-50.55≤-21.05PASS High2480-0.65-53.94≤-20.65PASS LowHop_2402-1.19-55.71≤-21.19PASS HighHop_2480-0.48-55.62≤-20.48PASS Page17of26 TestGraphs 2.4G_Ant1_Low_2402 2.4G_Ant1_High_2480 2.4G_Ant1_Low_Hop_2402 Page18of26 2.4G_Ant1_High_Hop_2480 Page19of26 AppendixH:ConductedSpuriousEmission TestResult TestModeAntennaFrequency[MHz] FreqRange [MHz] RefLevel [dBm] Result [dBm] Limit [dBm] Verdict 2.4GAnt1 2402 Reference-1.46-1.46---PASS 30~1000-1.46-47.99≤-21.46PASS 1000~26500-1.46-46.96≤-21.46PASS 2441 Reference-1.32-1.32---PASS 30~1000-1.32-68.2≤-21.32PASS 1000~26500-1.32-48.98≤-21.32PASS 2480 Reference-0.73-0.73---PASS 30~1000-0.73-68.42≤-20.73PASS 1000~26500-0.73-46.67≤-20.73PASS Page20of26 TestGraphs 2.4G_Ant1_2402_0~Reference 2.4G_Ant1_2402_30~1000 2.4G_Ant1_2402_1000~26500 Page21of26 2.4G_Ant1_2441_0~Reference 2.4G_Ant1_2441_30~1000 Page22of26 2.4G_Ant1_2441_1000~26500 2.4G_Ant1_2480_0~Reference 2.4G_Ant1_2480_30~1000 Page23of26 2.4G_Ant1_2480_1000~26500 Page24of26 AppendixI:DutyCycle TestResult TestModeAntennaFrequency[MHz] ONTime [ms] Period [ms] DutyCycle [%] DutyCycle Factor[dB] 2.4GAnt1 24022.883.7477.011.13 24412.883.7576.801.15 24802.883.7477.011.13 Page25of26 TestGraphs 2.4G_Ant1_2402 2.4G_Ant1_2441 2.4G_Ant1_2480 Page26of26 ---End---

ReportNo.:18220WC30160902FCCID:2BCHU-MICACEK95Page1of32 Code:AB-RF-05-b FCCTestReport Applicant:ShenzhenXiaoguTechnologyCo.,LTD Address: 601,6thFloor,ChuangfengCenter,No.25, EastRing1stRoad,Yousong Community,LonghuaStreet,Longhua District,Shenzhen518000China ProductName:Wirelesslapelmicrophone ReportDate:Aug.23,2023 ShenzhenAnbotekComplianceLaboratoryLimited ReportNo.:18220WC30160902FCCID:2BCHU-MICACEK95Page2of32 Code:AB-RF-05-b Contents 1.GeneralInformation ............................................................................................................................................6 1.1.ClientInformation .....................................................................................................................................6 1.2.DescriptionofDevice(EUT) ..................................................................................................................6 1.3.AuxiliaryEquipmentUsedDuringTest .................................................................................................7 1.4.DescriptionofTestConfiguration ..........................................................................................................7 1.5.DescriptionOfTestSetup .......................................................................................................................8 1.6.TestEquipmentList .................................................................................................................................9 1.7.MeasurementUncertainty ....................................................................................................................10 1.8.DescriptionofTestFacility ....................................................................................................................10 2.SummaryofTestResults .................................................................................................................................11 3.ConductedEmissionTest ................................................................................................................................12 3.1.TestStandardandLimit ........................................................................................................................12 3.2.TestSetup ...............................................................................................................................................12 3.3.TestProcedure .......................................................................................................................................12 3.4.TestData .................................................................................................................................................12 4.RadiationSpuriousEmissionandBandEdge .............................................................................................15 4.1.TestStandardandLimit ........................................................................................................................15 4.2.TestSetup ...............................................................................................................................................15 4.3.TestProcedure .......................................................................................................................................16 4.4.TestData .................................................................................................................................................17 5.MaximumPeakOutputPowerTest ................................................................................................................25 5.1.TestStandardandLimit ........................................................................................................................25 5.2.TestSetup ...............................................................................................................................................25 5.3.TestProcedure .......................................................................................................................................25 5.4.TestData .................................................................................................................................................25 6.20dBOccupyBandwidthTest .........................................................................................................................26 6.1.TestStandard ..........................................................................................................................................26 6.2.TestSetup ...............................................................................................................................................26 6.3.TestProcedure .......................................................................................................................................26 6.4.TestData .................................................................................................................................................26 7.CarrierFrequencySeparationTest ................................................................................................................27 7.1.TestStandardandLimit ........................................................................................................................27 7.2.TestSetup ...............................................................................................................................................27 7.3.TestProcedure .......................................................................................................................................27 7.4.TestData .................................................................................................................................................27 8.NumberofHoppingChannelTest ..................................................................................................................28 8.1.TestStandardandLimit .........................…

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ProjectNo.:18220WC301609Page1of2 Code:AB-RF-05-b AppendixI--TestSetupPhotograph ConductedEmissionatACpowerline PhotoofRadiationEmissionTest(below1GHz) ProjectNo.:18220WC301609Page2of2 Code:AB-RF-05-b PhotoofRadiationEmissionTest(above1GHz)