2BKEO-RF6K-1CHRemote control

ShenzhenJiutaoCross-BorderE-CommerceServicesCo.,Ltd. (2026.4.23) EurofinsElectricalandElectronicTestingNA,Inc. 914WestPatapscoAvenue Baltimore,MD21230 RE:AttestationStatementsPart2.911(d)(5)(i)requestfor(FCCID:2BVQE-JT98A) [GuangzhouRuiyuMaoyiYouxiangongsi](“theapplicant”)certifiesthattheequipment forwhichauthorizationissoughtisnot“covered”equipmentprohibitedfromreceiving anequipmentauthorizationpursuanttosection2.903oftheFCCrules. Wealsocertifythat,asofthedateofthefilingoftheapplication,theequipmentdoes notutilizecyber-securityoranti-virussoftwarefromKasperskyLab,Inc,oranyofits successorsandassignees,whichisalsoonthe“coveredlist”. Sincerely, (Applicantsignature) (Applicantprintedname)YinaWu ShenzhenJiutaoCross-BorderE-CommerceServicesCo.,Ltd. (2026.4.23) EurofinsElectricalandElectronicTestingNA,Inc. 914WestPatapscoAvenue Baltimore,MD21230 RE:AttestationStatementsPart2.911(d)(5)(ii)requestfor(FCCID:2BVQE-JT98A) [GuangzhouRuiyuMaoyiYouxiangongsi](“theapplicant”)certifiesthat,asofthedate ofthefilingoftheapplication,theapplicantisnotidentifiedontheCoveredListasan entityproducing“covered”equipment. Sincerely, (Applicantsignature) (Applicantprintedname) YinaWu

ShenzhenFounderIndustrialCo.,Ltd AgentAuthorizationLetter 2026-4-24 EurofinsElectricalandElectronicTestingNA,Inc. 914WestPatapscoAvenue Baltimore,MD21230 USA RE:LETTEROFAGENTAUTHORIZATION ToWhomItMayConcern: We,theundersigned,herebyauthorizeShenzhenMostTechnologyServiceCo.,Ltd.toact onourbehalfinallmattersrelatingtoapplicationforequipmentauthorization,includingthe signingofalldocumentsrelatingtothesematters. Wealsoherebycertifythatnopartytotheapplicationauthorizedhereunderissubjecttothe denialofbenefits,includingFCCbenefits,pursuanttoSection5301oftheAnti-DrugAbuse Actof1988,21U.S.C.853(a). Thisagreementexpiresoneyearfromthecurrentdate. Sincerely, Name: YeXiangMou Position:MANAGER CompanyName: ShenzhenFounderIndustrialCo.,Ltd Address: 3rdFloor,BuildingB,No.65ChuangyiRoad,Gaofeng Community,DalangStreet,LonghuaDistrict,Shenzhen Tel/Fax 18211567243 E-Mail: [email protected]

ShenzhenFounderIndustrialCo.,Ltd LongTermConfidentialityRequestLetter 2026-4-24 EurofinsElectricalandElectronicTestingNA,Inc. 914WestPatapscoAvenue Baltimore,MD21230 USA RE:CONFIDENTIALITYREQUESTFOR(FCCID:2BKEO-RF6K-1CH) ToWhomItMayConcern: Thisletterservesasanofficialrequestforconfidentialityundersections0.457and0.459of CFR47.Wehaverequestedthatthe -e.g.Blockdiagram -e.g.SCH -e.g.OperationalDescription requiredtobesubmittedwiththisapplicationbepermanentlywithheldfrompublicreview. Theabovedocumentsarecompanyproprietaryinformationthatcouldnevergetinto thepossessionofyourcompetition. Pleasecontactmeifthereisanyinformationyoumayneed. Sincerely, Name: YeXiangMou Position:MANAGER CompanyName: ShenzhenFounderIndustrialCo.,Ltd Address: 3rdFloor,BuildingB,No.65ChuangyiRoad,Gaofeng Community,DalangStreet,LonghuaDistrict,Shenzhen Tel/Fax 18211567243 E-Mail: [email protected]

Modeldifferenceletter 2026.4.24 DearMETReviewer, ThisisanewApplicationfromShenzhenFounderIndustrialCo.,Ltd ModelNo.:RF6K-1CH，RF6K-2CH-M/S，RF6K-2CH-F/B Onlythemodel“RF6K-1CH”wastested,Theirelectricalcircuitdesign,layout, componentsusedandinternalwiringareidentical,Onlythemodelnameand Appearancecolourisdifferent. Thankyouforyourcooperation! Yourssincerely, Signatory: Name:YeXiangMou Position: MANAGER CompanyName: ShenzhenFounderIndustrialCo.,Ltd Address: 3rdFloor,BuildingB,No.65ChuangyiRoad,GaofengCommunity,Dalang Street,LonghuaDistrict,Shenzhen Tel/Fax 18211567243 E-Mail: [email protected]

ModelNo.:RF6K-1CH FRONTVIEWOFSAMPLE BACKVIEWOFSAMPLE ModelNo.:RF6K-1CH LEFTVIEWOFSAMPLE RIGHTVIEWOFSAMPLE ModelNo.:RF6K-1CH TOPVIEWOFSAMPLE BOTTOMVIEWOFSAMPLE ModelNo.:RF6K-1CH PHOTOOFTHEENTIRESAMPLE

Model:RF6K-1CH Remotecontrol FCCID:2BKEO-RF6K-1CH

ModelNo.:RF6K-1CH Page1of2 INTERNALPHOTOOFSAMPLE INTERNALPHOTOOFSAMPLEPCB ModelNo.:RF6K-1CH Page2of2 INTERNALPHOTOOFSAMPLEPCB Antennalocation

ShenzhenMostTechnologyServiceCo.,Ltd. No.5,2ndLangshanRoad,NorthDistrict,Hi-techIndustrialPark,Nanshan, Shenzhen,Guangdong,China. TESTREPORT ReportReferenceNo........................: FCCID.................................................: MTEB26030223-H 2BKEO-RF6K-1CH Compiledby (position+printedname+signature)..:FileadministratorsAlisaLuo Supervisedby (position+printedname+signature)..:TestEngineerSunnyDeng Approvedby (position+printedname+signature) .. : ManagerYvetteZhou Dateofissue ......................................... :Mar.26,2026 RepresentativeLaboratoryName . :ShenzhenMostTechnologyServiceCo.,Ltd. Address.................................................: No.5,2ndLangshanRoad,NorthDistrict,Hi-techIndustrialPark, Nanshan,Shenzhen,Guangdong,China. Applicant’sname...............................:ShenzhenFounderIndustrialCo.,Ltd Address ................................................. : 3rdFloor,BuildingB,No.65ChuangyiRoad,Gaofeng Community,DalangStreet,LonghuaDistrict,Shenzhen Testspecification/Standard............: 47CFRPart1.1307 47CFRPart2.1093 TRFOriginator ...................................... :ShenzhenMostTechnologyServiceCo.,Ltd. ShenzhenMostTechnologyServiceCo.,Ltd.Allrightsreserved. Thispublicationmaybereproducedinwholeorinpartfornon-commercialpurposesaslongasthe ShenzhenMostTechnologyServiceCo.,Ltd.isacknowledgedascopyrightownerandsourceofthe material.ShenzhenMostTechnologyServiceCo.,Ltd.takesnoresponsibilityforandwillnotassume liabilityfordamagesresultingfromthereader'sinterpretationofthereproducedmaterialduetoits placementandcontext. Testitemdescription ........................ : Remotecontrol TradeMark............................................: N/A Model/Typereference.........................: RF6K-1CH ListedModels......................................: RF6K-2CH-M/S，RF6K-2CH-F/B ModulationType..................................: ASK OperationFrequency .......................... : 433.92MHz Hardwareversion.................................: V1.8.2 Softwareversion.................................: V1.0 Rating ..................................................... : DC3VbyBatteries Result.....................................................:PASS ReportNo.:MTEB26030223-HPage 2 of 5 TESTREPORT EquipmentunderTest:Remotecontrol Model/Type:RF6K-1CH ListedModels:RF6K-2CH-M/S，RF6K-2CH-F/B Remark Onlythemodel“RF6K-1CH”wastested,Theirelectricalcircuit design,layout,componentsusedandinternalwiringareidentical, OnlythemodelnameandAppearancecolourisdifferent. Applicant:ShenzhenFounderIndustrialCo.,Ltd Address: 3rdFloor,BuildingB,No.65ChuangyiRoad,Gaofeng Community,DalangStreet,LonghuaDistrict,Shenzhen Manufacturer:ShenzhenFounderIndustrialCo.,Ltd Address : 3rdFloor,BuildingB,No.65ChuangyiRoad,Gaofeng Community,DalangStreet,LonghuaDistrict,Shenzhen TestResult : PASS Thetestreportmerelycorrespondstothetestsample. Itisnotpermittedtocopyextractsofthesetestresultwithoutthewrittenpermissionofthetest laboratory. ReportNo.:MTEB26030223-HPage 3 of 5 Contents 1.RevisionHistory RevisionIssueDateRevisionsRevisedBy 00 2026.03.26 InitialIssueAlisaLuo ReportNo.:MTEB26030223-HPage 4 of 5 2.1RFExposureComplianceRequirement 2.1.1StandardRequirement AccordingtoKDB447498D01GeneralRFExposureGuidancev06 4.3.1.StandaloneSARtestexclusionconsiderations UnlessspecificallyrequiredbythepublishedRFexposureKDBprocedures,standalone1-gheadorbodyand 10-gextremitySARevaluationforgeneralpopulationexposureconditions,bymeasurementornumerical simulation,isnotrequiredwhenthecorrespondingSARExclusionThresholdcondition,listedbelow,is satisfied. 2.1.2Limits The1-gand10-gSARtestexclusionthresholdsfor100MHzto6GHzattestseparationdistances ≤50mmaredeterminedby: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance,mm)]· [√f(GHz)]≤3.0for1-gSARand≤7.5for10-gextremitySAR,where f(GHz)istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbeforecalculation17 Theresultisroundedtoonedecimalplaceforcomparison Thetestexclusionsareapplicableonlywhentheminimumtestseparationdistanceis≤50mmand fortransmissionfrequenciesbetween100MHzand6GHz.Whentheminimumtestseparation distanceis<5mm,adistanceof5mmisappliedtodetermineSARtestexclusion ReportNo.:MTEB26030223-HPage 5 of 5 2.1.3EUTRFExposure EIRP=PT*GT=(ExD)²/30 where: PT=transmitteroutputpowerinwatts, GT=numericgainofthetransmittingantenna(unitless), E=electricfieldstrengthinV/m,---10 (dBμV/m)/20) /10 6 , D=measurementdistanceinmeters(m)---3m, SoPT=(ExD)²/30/GT Theworstcase(refertoreportMTEB26030223-R)isbelow: Antennapolarization:Horizontal Frequency(MHz)Level(dBuV/m)Polarization 433.9280.48Peak 433.9271.33Average Antennapolarization:Vertical Frequency(MHz)Level(dBuV/m)Polarization 433.9281.36Peak 433.9272.21Average For433.92MHzwireless: Fieldstrength=81.36dBuV/m Antgain0dBi;soAntnumericgain=1 EIRP=PT*GT=(ExD)²/30=(10 (dBμV/m)/20) /10 6 *3) 2 /30=0.000041 SoPT=EIRP/GT=0.000041W/1=0.04mW So(0.04mW/5mm)*√0.43392GHz=0.00528 exclusion=0.00528<3.0for1-gSAR SotheSARreportisnotrequired.

ShenzhenMostTechnologyServiceCo.,Ltd. No.5,2ndLangshanRoad,NorthDistrict,Hi-techIndustrialPark,Nanshan, Shenzhen,Guangdong,China. TESTREPORT FCCRulesPart15.231 ReportReferenceNo........................: FCCID.................................................: MTEB26030223-R 2BKEO-RF6K-1CH Compiledby (position+printedname+signature)..:FileadministratorsAlisaLuo Supervisedby (position+printedname+signature)..:TestEngineerSunnyDeng Approvedby (position+printedname+signature) .. : ManagerYvetteZhou Dateofissue ......................................... :Mar.26,2026 RepresentativeLaboratoryName.:ShenzhenMostTechnologyServiceCo.,Ltd. Address.................................................: No.5,2ndLangshanRoad,NorthDistrict,Hi-techIndustrialPark, Nanshan,Shenzhen,Guangdong,China. Applicant’sname ............................... :ShenzhenFounderIndustrialCo.,Ltd Address.................................................: 3rdFloor,BuildingB,No.65ChuangyiRoad,Gaofeng Community,DalangStreet,LonghuaDistrict,Shenzhen Testspecification/Standard............: FCCPart15SubpartC,Section15.231 TRFOriginator ...................................... :ShenzhenMostTechnologyServiceCo.,Ltd. ShenzhenMostTechnologyServiceCo.,Ltd.Allrightsreserved. Thispublicationmaybereproducedinwholeorinpartfornon-commercialpurposesaslongasthe ShenzhenMostTechnologyServiceCo.,Ltd.isacknowledgedascopyrightownerandsourceofthe material.ShenzhenMostTechnologyServiceCo.,Ltd.takesnoresponsibilityforandwillnotassume liabilityfordamagesresultingfromthereader'sinterpretationofthereproducedmaterialduetoits placementandcontext. Testitemdescription ........................ : Remotecontrol TradeMark............................................: N/A Model/Typereference ......................... : RF6K-1CH ListedModels......................................: RF6K-2CH-M/S，RF6K-2CH-F/B ModulationType..................................: ASK OperationFrequency..........................: 433.92MHz Hardwareversion.................................: V1.8.2 Softwareversion ................................. : V1.0 Rating ..................................................... : DC3VbyBatteries Result ..................................................... :PASS ReportNo.:MTEB26030223-RPage 2 of 24 TESTREPORT EquipmentunderTest:Remotecontrol Model/Type:RF6K-1CH ListedModels:RF6K-2CH-M/S，RF6K-2CH-F/B Remark Onlythemodel“RF6K-1CH”wastested,Theirelectricalcircuit design,layout,componentsusedandinternalwiringareidentical, OnlythemodelnameandAppearancecolourisdifferent. Applicant:ShenzhenFounderIndustrialCo.,Ltd Address: 3rdFloor,BuildingB,No.65ChuangyiRoad,Gaofeng Community,DalangStreet,LonghuaDistrict,Shenzhen Manufacturer:ShenzhenFounderIndustrialCo.,Ltd Address : 3rdFloor,BuildingB,No.65ChuangyiRoad,Gaofeng Community,DalangStreet,LonghuaDistrict,Shenzhen TestResult:PASS Thetestreportmerelycorrespondstothetestsample. Itisnotpermittedtocopyextractsofthesetestresultwithoutthewrittenpermissionofthetest laboratory. ReportNo.:MTEB26030223-RPage 3 of 24 Contents 1.REVISIONHISTORY.........................................................................................................................4 2.TESTSTANDARDS............................................................................................................................5 3.SUMMARY...............................................................................................................................................6 3.1.GeneralRemarks.........................................................................................................................................6 3.2.ProductDescription....................................................................................................................................6 3.3.EquipmentUnderTest................................................................................................................................6 3.4.ShortdescriptionoftheEquipmentunderTest(EUT)............................................................................6 3.5.EUToperationmode....................................................................................................................................6 3.6.BlockDiagramofTestSetup......................................................................................................................6 3.7.TestItem(EquipmentUnderTest)Description*.......................................................................................7 3.8.AuxiliaryEquipment(AE)Description.......................................................................................................7 3.9AntennaInformation*...................................................................................................................................7 3.10.EUTconfiguration......................................................................................................................................7 3.11.Modifications..............................................................................................................................................7 4.TESTENVIRONMENT.......................................................................................................................8 4.1.Addressofthetestlaboratory...................................................................................................................8 4.2.Environmentalconditions...........................................................................................................................8 4.3.TestDescription...........................................................................................................................................9 4.4.Statementofthemeasurementuncertainty.............................................................................................9 4.5.EquipmentsUsedduringtheTest...........................................................................................................10 5.TESTCONDITIONSANDR…

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Antennadeclaration 2026.04.24 DearEurofinsReviewer, We,Prosperitas,LLCdeclarethatonlyradiatedmeasurementsareused toshowcompliancewithFCClimitsforfundamentalandspurious emissions. Length:19.5mm Width:2mm Material:Metalantenna AntennaGain:0dBi 19.5MM 2MM Name:YeXiangMou Position:Manager CompanyName:ShenzhenFounderIndustrialCo.,Ltd Address:3rdFloor,BuildingB,No.65ChuangyiRoad,Gaofeng Community,DalangStreet,LonghuaDistrict,Shenzhen Tel/Fax18211567243 E-Mail:[email protected]

ModelNo.:RF6K-1CH RETESTSETUP RETESTSETUP