2AHQZ-PLTS73UBMULTIMEDIA PLAYER

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DongGuanLongGuangElectronicsCo.,Ltd. 2.911(d)(5)(i)EquipmentTypeAttestationv1.2 Section2.911(d)(5)(i)Certification–EquipmentType Companyname:DongGuanLongGuangElectronicsCo.,Ltd. Address:3#DaShanWeiStreet,ShiShuiKouVillage,QiaoTouTown,DongGuanCity,GuangDong Province,China ProductName:MULTIMEDIAPLAYER FCCID:2AHQZ-PLTS73UB Model(s):PLTS73UB,8325,8350,8360,8370,8375,8380 2.911(d)(5)(i)EquipmentType We,DongGuanLongGuangElectronicsCo.,Ltd.(“theapplicant”)certifythattheequipmentforwhich authorizationissoughtthroughcertificationisnot: Prohibitedfromreceivinganequipmentauthorizationpursuantto§2.903;oftheFCCrules. Identifiedasanequipmenttypeinthe“CoveredList” NOTE1 Yourssincerely, Name:JaxWongDate:2023.5.24 TitleandCompanyname:Manager/DongGuanLongGuangElectronicsCo.,Ltd. NOTE1 “CoveredList”;istheListofEquipmentandServicesCoveredBySection2ofTheSecureNetworksAct,availableat https://www.fcc.gov/supplychain/coveredlist References; 1)986446D01CoveredEquipmentv01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2)FederalRegisterdocument2022-28263publishedon02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

DongGuanLongGuangElectronicsCo.,Ltd. 2.911(d)(5)(ii)ApplicantAttestationv1.2 Section2.911(d)(5)(ii)Certification–Applicant(CoveredList) Companyname:DongGuanLongGuangElectronicsCo.,Ltd. Address:3#DaShanWeiStreet,ShiShuiKouVillage,QiaoTouTown,DongGuanCity,GuangDong Province,China ProductName:MULTIMEDIAPLAYER FCCID:2AHQZ-PLTS73UB Model(s):PLTS73UB,8325,8350,8360,8370,8375,8380 2.911(d)(5)(ii)Applicantfiling We,DongGuanLongGuangElectronicsCo.,Ltd.(“theapplicant”)certifythat,asofthedateofthe filingoftheapplication,theapplicantisnotidentified NOTE1 onthe“CoveredList” NOTE2 ,established pursuantto§1.50002ofthischapter,asanentityproducingcoveredcommunicationsequipment. Yourssincerely, Name:JaxWongDate:2023.5.24 TitleandCompanyname:Manager/DongGuanLongGuangElectronicsCo.,Ltd. NOTE1 Deleteoptionnotapplicabletothisapplication. NOTE2 “CoveredList”;istheListofEquipmentandServicesCoveredBySection2ofTheSecureNetworksAct,availableat https://www.fcc.gov/supplychain/coveredlist References; 1)986446D01CoveredEquipmentv01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2)FederalRegisterdocument2022-28263publishedon02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

DongGuanLongGuangElectronicsCo.,Ltd. AgentAuthorization Company:DongGuanLongGuangElectronicsCo.,Ltd. Address:3#DaShanWeiStreet,ShiShuiKouVillage,QiaoTouTown,DongGuan City,GuangDongProvince,China ProductName:MULTIMEDIAPLAYER ModelNumber(s):PLTS73UB,8325,8350,8360,8370,8375,8380 ProductDescription:MULTIMEDIAPLAYER WeauthorizeMiCOMLabsInc.,575BoulderCourt,Pleasanton,California94566,USA, toactonourbehalfonallmattersconcerningthecertificationofabovenamed equipment. WedeclarethatMiCOMLabsInc.isallowedtoforwardallinformationrelatedtothe approvalandcertificationofequipmenttotheregulatoryagenciesasrequiredandto discussanyissuesconcerningtheapprovalapplication.Anyandallactscarriedoutby MiCOMLabsonourbehalfshallhavethesameeffectasactsofourown. Signature:Date:2023/5/24 Name:JaxWong Title:Manager Company:DongGuanLongGuangElectronicsCo.,Ltd.

DongGuanLongGuangElectronicsCo.,Ltd. OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USA Date:2023/5/24 Subject;RequestforConfidentiality FCCID:2AHQZ-PLTS73UB ToWhomItMayConcern, PursuanttotheprovisionsoftheCommission’srulesTitle47Sections§0.457and§0.459,we arerequestingtheCommissiontowithholdthefollowingattachment(s)asconfidential documentsfrompublicdisclosureindefinitely. Thesedocumentscontaindetailedsystemandequipmentdescriptionsandareconsideredas proprietaryinformationinoperationoftheequipment.Thepublicdisclosureofthesedocuments mightbeharmfultoourcompanyandwouldgivecompetitorsanunfairadvantageinthemarket. SchematicDiagram BlockDiagram PartsList OperationalDescription Tune-upProcedure 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:JaxWong Title:Manager

FCCID:2AHQZ-PLTS73UB DongGuanLongGuangElectronicsCo.,Ltd. ModelConfirmationLetter We,DongGuanLongGuangElectronicsCo.,Ltd.certifytheproduct: MULTIMEDIAPLAYER,ModelNo.:PLTS73UB,8325,8350,8360,8370,83 75,8380,Theproducthasmanymodels,onlythemodelnameis different,andtheotherpartssuchasthecircuitprinciple,pcband electricalstructurearethesame.Testsamplemodel:PLTS73UB Signiture: Name:JaxWong Date:2023.5.24 Title/Companyname:Manager/DongGuanLongGuangElectronics Co.,Ltd

FCCID:2AHQZ-PLTS73UB External FCCID:2AHQZ-PLTS73UB FCCID:2AHQZ-PLTS73UB FCCID:2AHQZ-PLTS73UB

Size:L:3.5m*W:3.0cm MULTIMEDIAPLAYER ModelNo.:PLTS73UB FCCID:2AHQZ-PLTS73UB Input:DC12V DongGuanLongGuangElectronicsCo.,Ltd. MadeInChina Thisdevicecomplieswithpart15oftheFCCRules.Operation issubjecttothefollowingtwoconditions:(1)Thisdevice maynotcauseharmfulinterference,and(2)thisdevicemust acceptanyinterferencereceived,includinginterference thatmaycauseundesiredoperation. LabelandLocation

FCCID:2AHQZ-PLTS73UB Internal FCCID:2AHQZ-PLTS73UB FCCID:2AHQZ-PLTS73UB FCCID:2AHQZ-PLTS73UB FCCID:2AHQZ-PLTS73UB

FCCID:2AHQZ-PLTS73UB RFExposureEvaluation AccordingtoKDB447498D01GeneralRFExposureGuidancev064.3.1.StandaloneSARtest exclusionconsiderationsUnlessspecificallyrequiredbythepublishedRFexposureKDBprocedures, standalone1-gheadorbodyand10-gextremitySARevaluationforgeneralpopulationexposure conditions,bymeasurementornumericalsimulation,isnotrequiredwhenthecorrespondingSAR ExclusionThresholdcondition,listedbelow,issatisfied. Limits AccordingtoFCCPart1.1310:Thecriterialistedinthefollowingtableshallbeusedtoevaluatethe environmentimpactofhumanexposuretoradiofrequency(RF)radiationasspecifiedinpart1.1307(b) F=FrequencyinMHzFriisFormula Friistransmissionformula:Pd=(Pout*G)/(4*Pi*R2)Where Pd=powerdensityinmW/cm2 Pout=outputpowertoantennainmW G=gainofantennainlinearscale Pi=3.1416 R=distancebetweenobservationpointandcenteroftheradiatorincm PdidthelimitofMPE.Ifweknowthemaximumgainoftheantennaandthetotalpowerinputtotheantenna, throughthecalculation,wewillknowthedistancerwheretheMPElimitisreached. TestResultofRFExposureEvaluation Antennagain:2.7dBi AntennaGain:ThemaximumGainmeasuredinfullyanechoicchamberis1.0inlinearscale. OutputPowerIntoAntenna&RFExposureEvaluationDistance:20cm MeasurementData TheMaxConductedPeakOutputPowerdatarefertoreportReportNo.:ZKT-230523L3736 1.1EUTRFEXPOSURE OperationalMode:EDR（GFSKworstcase） Channel Maximum Peak Conducted OutputPower (dBm) Tuneup tolerance (dB) Maximumtune-upPower Calculated value (mW/cm2) Limit (dBm)(mW) 2402MHZ6.09 6±1 75.0120.001861.0 Conclusion:thecalculatedvalue≤1.0,SARisexempted. 1)Pd=(Pout*G)/(4*Pi*R2)=(5.012*1.862)/(4*3.14159*20*20)=0.00186,G=10gain/10=1.862

ANT天线规格书 antenna specificationdocument 天线外观和尺寸： Appearanceanddimensionsoftheantenna: 15mm*5mm 电气参数 Electricalparameters 工作频率workingfrequency 峰值增益Peakgain 阻抗impedance 2400-2483.5MHz 2.7dBi 50欧姆 极化方式Polarizationmode 方向图directionaldiagram 线性 Omni-directional -30到80°C 使用环境serviceenvironment 特性曲线 Characteristiccurve 方向图 RadiationPattern

ProjectNo.:ZKT-230523L3736 Page 1 of 70 FCCTESTREPORT FCCID:2AHQZ-PLTS73UB ReportNumber. .................................... : ZKT-230523L3736 DateofTest..........................................: May.17,2023--May.23,2023 Dateofissue.........................................: May.23,2023 Totalnumberofpages........................: 70 TestResult..........................................:PASS TestingLaboratory...............................: ShenzhenZKTTechnologyCo.,Ltd. Address...............................................: 1/F,No.101,BuildingB,No.6,TangweiCommunityIndustrial Avenue,FuhaiStreet,Bao'anDistrict,Shenzhen,China Applicant'sname................................: DongGuanLongGuangElectronicsCo.,Ltd. Address...............................................: 3#DaShanWeiStreet,ShiShuiKouVillage,QiaoTou Town,DongGuanCity,GuangDongProvince,China Manufacturer'sname.........................: DongGuanLongGuangElectronicsCo.,Ltd. Address ............................................... : 3#DaShanWeiStreet,ShiShuiKouVillage,QiaoTou Town,DongGuanCity,GuangDongProvince,China Testspecification: Standard................................................:FCCCFRTitle47Part15SubpartCSection15.247 Testprocedure.....................................: ANSIC63.10:2013 KDB558074D0115.247MeasGuidancev05r02 Non-standardtestmethod................:N/A TestReportFormNo........................: TRF-EL-112_V0 TestReportForm(s)Originator ..... : ZKTTesting MasterTRF ........................................ : Dated:2020-01-06 ThisdevicedescribedabovehasbeentestedbyZKT,andthetestresultsshowthattheequipmentunder test(EUT)isincompliancewiththeFCCrequirements.Anditisapplicableonlytothetestedsample identifiedinthereport. Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofZKT,thisdocumentmay bealteredorrevisedbyZKT,personalonly,andshallbenotedintherevisionofthedocument. Productname:MULTIMEDIAPLAYER Trademark: Model/Typereference: PLTS73UB,8325,8350,8360,8370,8375,8380 Ratings:DC:12V ProjectNo.:ZKT-230523L3736 Page 2 of 70 Testingprocedureandtestinglocation: TestingLaboratory .............................................. :ShenzhenZKTTechnologyCo.,Ltd. Address ............................................................... :1/F,No.101,BuildingB,No.6,TangweiCommunityIndustrial Avenue,FuhaiStreet,Bao'anDistrict,Shenzhen,China AlenHe Testedby(name+signature) .............................. : JoeLiu Reviewer(name+signature) ............................... : LakeXie Approved(name+signature) .............................. : ProjectNo.:ZKT-230523L3736 Page 3 of 70 TableofContents Page 1.VERSION..................................................................................................................................5 2.TESTSUMMARY...................................................................................................................6 2.1TESTFACILITY.........................................................................................................................6 2.2MEASUREMENTUNCERTAINTY......................................................................................7 3.GENERALINFORMATION..................................................................................................8 3.1GENERALDESCRIPTIONOFEUT...................................................................................8 3.2TestSetupConfiguration........................................................................................................9 3.3SupportEquipment...................................................................................................................9 3.4TestMode.................................................................................................................................10 3.5EQUIPMENTSLISTFORALLTESTITEMS................................................................11 4.EMCEMISSIONTEST........................................................................................................12 4.1Conductedemissions............................................................................................................12 4.1.1POWERLINECONDUCTEDEMISSIONLimits.......................................................12 4.1.2TESTPROCEDURE..........................................................................................................12 4.1.3DEVIATIONFROMTESTSTANDARD.......................................................................12 4.1.4TESTSETUP.......................................................................................................................13 4.1.5EUTOPERATINGCONDITIONS..................................................................................13 4.2Radiatedemissions................................................................................................................14 4.2.1RadiatedEmissionLimits.................................................................................................14 4.2.2TESTPROCEDURE..........................................................................................................14 4.2.3DEVIATIONFROMTESTSTANDARD.......................................................................15 4.2.4TESTSETUP.......................................................................................................................15 4.2.5EUTOPERATINGCONDITIONS..................................................................................16 4.2.6TESTRESULTS..................................................................................................................17 5.RADIATEDBANDEMISSIONMEASUREMENT........................................................21 5.1TestRequirement:..................................................................................................................21 5.2TESTPROCEDURE..............................................................................................................21 5.3DEVIATIONFROMTESTSTANDARD.........................................…

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FCCID:2AHQZ-PLTS73UB RADIATEDEMISSIONMEASUREMENT（below1G） RADIATEDEMISSIONMEASUREMENT（Above1G）