2BTF7-L85electric scooter

CAUTION: Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the users authority to operate the equipment. CAUTION: 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. FCC Statement: 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 encouraged 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. RF exposure compliance statement:This device has been evaluated to meet the general RF exposure requirement.

Rev1/26/2023 ShenzhenYihuaxinTechnologyCo.,LTD FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:12-5-2025 Ref:AttestationStatementsPart2.911(d)(5)(i)Filing FCCID:2BTF7-L85 ShenzhenYihuaxinTechnologyCo.,LTD(“theapplicant”)certifiesthattheequipmentforwhich authorizationissoughtisnot“covered”equipmentprohibitedfromreceivinganequipment authorizationpursuanttosection2.903oftheFCCrules. ShenzhenYihuaxinTechnologyCo.,LTD(“theapplicant”)certifiesthattheequipmentforwhich authorizationissoughtdoesnotincludecybersecurityoranti-virussoftwareproducedorprovidedby KasperskyLab,Inc.oranyofitssuccessorsandassignees,includingequipmentwithintegratedKaspersky Lab,Inc.(oranyofitssuccessorsandassignees)cybersecurityoranti-virussoftwarepursuanttoDA-24- 886andKDB986446D01CoveredEquipmentGuidancesectionB(2a). Deviceisinherentlycompliantbasedonhardwarelimitationsorsoftwarecontrols. or ASoftwareBillofMaterials(SBOM)isprovidedtotheTCBforreview,and Theend-userorthirdpartiescannotinstalladditionalsoftwareonthisdevice. Sincerely, (signature) Name:QiuyueLi Title:manager Rev1/26/2023 ShenzhenYihuaxinTechnologyCo.,LTD FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:12-5-2025 Ref:AttestationStatementsPart2.911(d)(5)(ii)Filing FCCID:2BTF7-L85 ShenzhenYihuaxinTechnologyCo.,LTD(“theapplicant”)certifiesthat,asofthedateofthefilingofthe application,theapplicantisnotidentifiedontheCoveredList(asaspecificallynamedentityoranyofits subsidiariesoraffiliates)asanentityproducing“covered”equipment. Sincerely, (signature) Name:QiuyueLi Title:manager

ShenzhenYihuaxinTechnologyCo.,LTD FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:12-5-2025 Ref:AttestationStatementsPart2.911(d)(7)Filing FCCIDorGranteeCode:FCCID:2BTF7-L85 ApplicantFRN:0037700622 ShenzhenYihuaxinTechnologyCo.,LTD(“theapplicant”)certifiesthat,asofthedateofthe filingoftheapplication,REPAmericaLLCisourdesignatedU.S.agentforserviceofprocess fortheabovereferencedFCCID.ShenzhenYihuaxinTechnologyCo.,LTDacceptsto maintainanagentfornolessthanoneyearafterthegranteehasterminatedallmarketingand importationortheconclusionofanyCommission-relatedproceedinginvolvingtheequipment. REPAmericaLLCaccepts,asofthedateofthefilingoftheapplication,theobligationofthe designatedU.S.agentforserviceofprocessfortheabovereferencedFCCID. DesignatedU.S.AgentInformation: Name:REPAmericaLLC U.S.AgentFRN:0034192500 Address:350TerrySt.200Longmont,CO80501UnitedStates ContactPerson:MrBenXu Tel.:(719)201-3314 Email:[email protected] Sincerely, ShenzhenYihuaxinTechnologyCo.,LTD REPAmericaLLC QiuyueLi/ManagerBenXu/manager (sign)(sign)

Regards, Shenzhen Yihuaxin Technology Co.,LTD Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Date:11-18-2025 SUBJECT: FCC Application for FCC ID:2BTF7-L85 To Whom It May Concern: I, the undersigned, hereby states 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, and will apply the Supplier's Declaration of Conformity procedure to the class B computer peripheral portion of this composite device. I understand the following FCC requirements: 1. Devices subject to the SDoC procedure are required to be tested to show compliance with the FCC technical regulations by a recognized accredited testing laboratory. The testing laboratory must be accredited by a Commission approved accreditation body or designated under the terms of a government-to-government Mutual Recognition Agreement (MRA). A listing of those accredited testing laboratories that have been recognized by the Commission is published on the FCC Webpage: https://apps.fcc.gov/oetcf/eas/reports/TestFirmSearch.cfm (Select the "accredited" option to search for FCC recognized accredited test firms.) 2. Pt 2.1077 contains the list of information that must be included in the Supplier's Declaration of Conformity, which must be supplied with each product sold. The SDoC compliance info shall be included in the User’s Manual or as a separate sheet. The info must contain the name, address, and phone number of the responsible party, which must be located within the United States.According to 2.909(b), the responsible party is either the Manufacturer or if the product is imported the Importer. Sincerely, (signature) Name:Qiu yue Li Title: manager

ShenzhenYihuaxinTechnologyCo.,LTD FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:12-5-2025 ConfidentialityRequestregardingapplicationforcertificationofFCCID:2BTF7-L85 PursuanttoSections0.457and0.459oftheCommission’sRules,weherebyrequestconfidential treatmentofinformationaccompanyingthisapplicationasoutlinedbelow: ExhibitType BlockDiagram OperationalDescription Schematics Theabovematerialscontaintradesecretsandproprietaryinformationnotcustomarilyreleasedto thepublic.Thepublicdisclosureofthesematerialsmaybeharmfultotheapplicantandprovide unjustifiedbenefitstoitscompetitors. TheapplicantunderstandsthatpursuanttoSection0.457oftheRules,disclosureofthis applicationandallaccompanyingdocumentationwillnotbemadebeforethedateoftheGrantfor thisapplication. PursuanttoDA04-1705June15,2004oftheCommission’spublicnotice,wealsorequest temporaryconfidentialtreatmentofinformationaccompanyingthisapplicationasoutlinedbelow: ExhibitType Sincerely, (signature) Name:QiuyueLi Title:manager

FCCID:2BTF7-L85 ShenzhenYihuaxinTechnologyCo.,LTD ModelConfirmationLetter We,ShenzhenYihuaxinTechnologyCo.,LTDcertifytheproduct:electricscooter, ModelNo.:L85,L65,L85,L85A,L100 Therearemultiplemodelsoftheproduct,withdifferencesinthecoloroftheappearance andcustomerrequirementsfordifferentmodelsinthemarket,resultinginmultiplemodels. However,theinternalcircuitboards,PCBs,BOMs,andotherelectricalstructuresofthese modelsarethesame,andthesedifferenceswillnotaffectRF&EMCperformance. Therefore,theselectedtestmodelis:L85. Signiture: Company Name: Shenzhen Yihuaxin Technology Co.,LTD Date: 2025-12-5

ShenzhenYihuaxinTechnologyCo.,LTD FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Date:12-5-2025 SUBJECT:FCCApplicationforFCCID:2BTF7-L85 ToWhomItMayConcern: We,theundersigned,herebyauthorizeColinHuangatShenzhenDACETestingTechnology Co.,Ltd.onourbehalf,toapplytotheFederalCommunicationsCommissiononourequipment. AnyandallactscarriedoutbyShenzhenDACETestingTechnologyCo.,Ltd.onourbehalf shallhavethesameeffectasactsofourown. ThisistoadvisethatweareinfullcompliancewiththeAnti-DrugAbuseAct.We,theapplicant, arenotsubjecttoadenialoffederalbenefitspursuanttoSection5301oftheAnti-DrugActof 1988,21USC853a,andnopartytotheapplicationissubjecttoadenialoffederalbenefits pursuanttothatsection. Regards, Sincerely, (signature) Name:QiuyueLi Title:manager

FCCID:2BTF7-L85 External

FCCID:2BTF7-L85 FCCIDplace SAMPLE: Electric Scooter Model: L85 FCC ID: 2BTF7-L85 FCC WARNING: 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.

FCCID:2BTF7-L85 Internal

Page1of1 RFExposureEvaluationReport 1RFEXPOSURE ProductName:electricscooter ModelNo.:L85,L65,L85,L85A,L100 FCCID:2BTF7-L85 2.RFExposureEvaluation FCCKDB447498D01GeneralRFExposureGuidancev06:MobileandPortableDevice,RF Exposure,EquipmentAuthorizationProcedures. FCCCFR47part11.1310:Radiofrequencyradiationexposurelimits. FCCCFR47part22.1093Radiofrequencyradiationexposureevaluation:portabledevices. 2.1LIMITS The1-gand10-gSARtestexclusionthresholdsfor100MHzto6GHzattestseparation distances≤50mmaredeterminedby: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance, mm)]*[√f(GHz)]≤3.0for1-gSARand≤7.5for10-gextremitySAR,where  f(GHz)istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbeforecalculation  Theresultisroundedtoonedecimalplaceforcomparison Thetestexclusionsareapplicableonlywhentheminimumtestseparationdistanceis≤50 mmandfortransmissionfrequenciesbetween100MHzand6GHz.Whentheminimumtest separationdistanceis<5mm,adistanceof5mmisappliedtodetermineSARtest exclusion. 2.2EUTRFEXPOSUREEVALUATION WorstMode: Channel (MHz) Conducted Power (dBm) Tuneup Tolerance (dBm) Maximum tune-upPower Calculated value Limit (dBm)(mW) 2DH5-2480-5.23 -5.0 ± 1.0 -4.00.3980.1253.0 Calculatedvalueis0.125<3.0,SothereisnorequireSARtest

Inverted F Antenna Specification Summary ITEM ANT SPEC Model Name 2.4G ANT Horizontal Vertical 2400MHz 2400MHz2500MHz2400MHz2400MHz 2500MHz Center Frequency -1.26 -0.76 -0.58 -5.25 -2.46 -1.86 MAX. Gain -0.58dB Polarization Horizontal and Vertical Azimuth Beam Pattern Omni-directional Impedance 50 Ohm Antenna Length 38.20mm Manufacture ZHUHAI JIELI TECHNOLOGY CO.,LTD Antenna Photo & Length (mm) Horizontal: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -40 Scale: 5/div Gain(dB) Frequency (MHz) Max Min Avg 2400 -1.26174 -30.0801 -7.18716 2450 -0.765802 -36.5604 -7.48023 2500 -0.585582 -22.0315 -6.59127 Vertical: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -30 Scale: 5/div Gain(dB) Frequency (MHz) Max Min Avg 2400 -5.2537 -22.1424 -12.4294 2450 -2.4652 -24.5837 -10.4702 2500 -1.86120 -29.5214 -9.20432 ANT Test Labs：Attestation of Global Compliance Co., Ltd.

V1.0ReportNo.:DACE251029015RL001 102,BuildingH1,&1/F.,BuildingH,HongfaScience&TechnologyPark,TangtouCommunity,ShiyanSubdistrict,Bao'anDistrict,Shenzhen,Guangdong,China Web:http://www.dace-lab.comTel:+86-755-23010613E-mail:[email protected] 1 of 81 RFTESTREPORT For ShenzhenYihuaxinTechnologyCo.,LTD ProductName:electricscooter TestModel(s):L85 ReportReferenceNo.:DACE251029015RL001 FCCID:2BTF7-L85 Applicant’sName:ShenzhenYihuaxinTechnologyCo.,LTD Address: 8thFloor,LangtingBuilding,No.28SongruiRoad,HongxingCommuniny, SonggangStreet,Bao'anDistrict,Shenzhen TestingLaboratory:ShenzhenDACETestingTechnologyCo.,Ltd. Address: 102,BuildingH1,&1/F.,BuildingH,HongfaScience&TechnologyPark, TangtouCommunity,ShiyanSubdistrict,Bao'anDistrict,Shenzhen, Guangdong,China TestSpecificationStandard:47CFRPart15.247 DateofReceipt:October29,2025 DateofTest:October29,2025toNovember17,2025 DataofIssue:November17,2025 Result:Pass Note:Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofShenzhenDACE TestingTechnologyCo.,Ltd.ThisdocumentmaybealteredorrevisedbyShenzhenDACETestingTechnology Co.,Ltd.personnelonly,andshallbenotedintherevisionsectionofthedocument.Thetestresultsinthe reportonlyapplytothetestedsample V1.0ReportNo.:DACE251029015RL001 102,BuildingH1,&1/F.,BuildingH,HongfaScience&TechnologyPark,TangtouCommunity,ShiyanSubdistrict,Bao'anDistrict,Shenzhen,Guangdong,China Web:http://www.dace-lab.comTel:+86-755-23010613E-mail:[email protected] 3 of 81 RevisionHistoryOfReport VersionDescriptionREPORTNo.IssueDate V1.0OriginalDACE251029015RL001November17,2025 V1.0ReportNo.:DACE251029015RL001 102,BuildingH1,&1/F.,BuildingH,HongfaScience&TechnologyPark,TangtouCommunity,ShiyanSubdistrict,Bao'anDistrict,Shenzhen,Guangdong,China Web:http://www.dace-lab.comTel:+86-755-23010613E-mail:[email protected] 4 of 81 CONTENTS 1TESTSUMMARY...................................................................................................................................................6 1.1TESTSTANDARDS........................................................................................................................................6 1.2SUMMARYOFTESTRESULT.........................................................................................................................6 2GENERALINFORMATION....................................................................................................................................7 2.1CLIENTINFORMATION..................................................................................................................................7 2.2DESCRIPTIONOFDEVICE(EUT)..................................................................................................................7 2.3DESCRIPTIONOFTESTMODES....................................................................................................................8 2.4DESCRIPTIONOFSUPPORTUNITS................................................................................................................9 2.5EQUIPMENTSUSEDDURINGTHETEST........................................................................................................9 2.6STATEMENTOFTHEMEASUREMENTUNCERTAINTY....................................................................................11 2.7IDENTIFICATIONOFTESTINGLABORATORY.................................................................................................12 2.8ANNOUNCEMENT.......................................................................................................................................12 3EVALUATIONRESULTS(EVALUATION)...........................................................................................................13 3.1ANTENNAREQUIREMENT............................................................................................................................13 3.1.1Conclusion:.................................................................................................................................13 4RADIOSPECTRUMMATTERTESTRESULTS(RF).........................................................................................14 4.1CONDUCTEDEMISSIONATACPOWERLINE................................................................................................14 4.1.1E.U.T.Operation:........................................................................................................................14 4.1.2TestSetupDiagram:...................................................................................................................14 4.1.3TestData:...................................................................................................................................15 4.220DBBANDWIDTH.....................................................................................................................................17 4.2.1E.U.T.Operation:........................................................................................................................17 4.2.2TestSetupDiagram:...................................................................................................................17 4.2.3TestData:...................................................................................................................................18 4.3MAXIMUMCONDUCTEDOUTPUTPOWER....................................................................................................19 4.3.1E.U.T.Operation:........................................................................................................................19 4.3.2TestSetupDiagram:...................................................................................................................19 4.3.3TestData:...................................................................................................................................19 4.4CHANNELSEPARATION...............................................................................................................…

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FCCID:2BTF7-L85 Testsetup ConductedEmissionatACpowerline Bandedgeemissions(Radiated) Emissionsinfrequencybands(above1GHz) Emissionsinfrequencybands(below1GHz)