2BU4M-FT001Car keys

CarIntelligentKeyRemoteControlInstructionManual Controls KeyTypesandFunctions Thisvehiclecomeswiththefollowingkeys: Usethekeystoturnonandoffthepowersystem,andtolockandunlockthedoorsandtoopen thetrunk. Thebuilt-inkeycanbeusedtolock/unlockthedoorswhenthesmartentryremotebattery becomesweakandthepowerdoorlock/unlockoperationisdisabled. Toremovethebuilt-inkey,slidethereleaseknobandthenpulloutthekey.Toreinstallthe built-inkey,pushthebuilt-inkeyintothesmartentryremoteuntilitclicks.1KeyTypesand Functions Allthekeyshaveanimmobilizersystem.Theimmobilizersystemhelpstoprotectagainstvehicle theft. Followtheadvicebelowtopreventdamagetothekeys: 1.Presstheunlockbuttontoremotelyunlockthevehicle. 2.Pressthelockbuttontoremotelylockthevehicle. 3.Pressthebuttontoremotelyactivatethehorn. 4.Insertthekeyintotheignitionswitchtopoweronthevehicle'selectricaldevicesand starttheengine. 5.Positionkeyneartheleftfrontdoorhandle,withinonemeter,andpressthelockbutton.This willautomaticallyraiseallthewindowsandclosethesunroof.If'saconvertible,itwillalso closethetop. 6.Positionthekeyneartheleftfrontdoorhandle,withinonemeter,andpresstheunlockbutton Thiswilllowerallthewindows,openthesunroof,andifit'saconvertible,itwillopenthe top. 7.Pressandholdboththeandunlockbuttonsforaboutfiveseconds.Thekeylightwillflash once.Atthispoint,theunlockfunctionwillonlyworkfortheleftfrontdoorandthecap.To restorefullunlockingcapability,pressandholdboththelockandunlockbuttonsforanotherfive seconds. FCCRequirement changesormodificationsnotexpresslyapprovedbythepartyresponsibleforcompliancecould voidtheuser'sauthoritytooperatetheequipment.ThisdevicecomplieswithPart15oftheFCC Rules.Operationissubjecttothefollowingtwo conditions: (1)thisdevicemaynotcauseharmfulinterference,and (2)thisdevicemustacceptanyinterferencereceived,includinginterferencethatmaycause undesiredoperation. Note:Thisequipmenthasbeentestedandfoundtocomplywiththelimitsfora ClassBdigitaldevice,pursuanttoPart15oftheFCCRules.Theselimitsaredesignedto providereasonableprotectionagainstharmfulinterferenceinaresidentialinstallation.This equipmentgenerates,uses,andcanradiateradiofrequencyenergy，andifnotinstalled andusedinaccordancewiththeinstructions,maycauseharmfulinterferencetoradio communications.However,thereisnoguaranteethatinterferencewillnotoccurina particularinstallation.Ifthisequipmentdoescauseharmfulinterferencetoradioor televisionreception,whichcanbedeterminedbyturningtheequipmentoffandon,the userisencouragedtotrytocorrecttheinterferencebyoneormoreofthe followingmeasures:-Reorientorrelocatethereceivingantenna. -Increasetheseparationbetweentheequipmentandreceiver. -Connecttheequipmentintoanoutletonacircuitdifferentfromthattowhichthereceiveris connected. -Consultthedealeroranexperiencedradio/TVtechnicianforhelp.

Rev1/26/2023 (CorvantaGroupLLC) FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:28/4/2026 Ref:AttestationStatementsPart2.911(d)(5)(i)Filing FCCID:2BU4M-FT001 [CorvantaGroupLLC]certifiesthattheequipmentforwhichauthorizationissoughtisnot“covered” equipmentprohibitedfromreceivinganequipmentauthorizationpursuanttosection2.903oftheFCC rules. [CorvantaGroupLLC]certifiesthattheequipmentforwhichauthorizationissoughtdoesnotinclude cybersecurityoranti-virussoftwareproducedorprovidedbyKasperskyLab,Inc.oranyofitssuccessors andassignees,includingequipmentwithintegratedKasperskyLab,Inc.(oranyofitssuccessorsand assignees)cybersecurityoranti-virussoftwarepursuanttoDA-24-886andKDB986446D01Covered EquipmentGuidancesectionB(2a). Deviceisinherentlycompliantbasedonhardwarelimitationsorsoftwarecontrols. or ASoftwareBillofMaterials(SBOM)isprovidedtotheTCBforreview,and Theend-userorthirdpartiescannotinstalladditionalsoftwareonthisdevice. Sincerely, YaelKatz/AttorneyatLaw Rev1/26/2023 (CorvantaGroupLLC) FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:28/4/2026 Ref:AttestationStatementsPart2.911(d)(5)(ii)Filing FCCID:2BU4M-FT001 [CorvantaGroupLLC]certifiesthat,asofthedateofthefilingoftheapplication,theapplicantisnot identifiedontheCoveredList(asaspecificallynamedentityoranyofitssubsidiariesoraffiliates)asan entityproducing“covered”equipment. Sincerely, (Applicantsignature) (Applicantprintedname)YaelKatz/AttorneyatLaw

CorvantaGroupLLC ‘Date：2026-4-28 ProductModelNumber:2BU4M-FT001 FCCID:2BU4M-FT001 Towhomitmayconcern, Re:ProductCertificationRepresentativeAuthorizationLetter WeauthorizeQAILaboratoriesLtd.3980NorthFraserWay,BurnabyB.C. CanadaV5J5K5toactonourbehalfonallmattersconcerningtheabove namedequipment. Thisshallincludethefollowing: Testing Approvalapplicationsandprocedures WedeclarethatQAILaboratoriesLtd.isallowedtoforwardallinformation relatedtotheapprovalprojecttotheappliedcertificationbodyandtothe notificationentitiesandtodiscussanyissuesconcerningtheapproval application.AnyandallactscarriedoutbyQAILaboratoriesLtd.onour behalfshallhavethesameeffectasactsofourown. By: ContactListedonFCCWesbite Title:YaelKatz/AttorneyatLaw Email:[email protected] Telephone:(302)575-4596 Onbehalfof:CorvantaGroupLLC

CorvantaGroupLLC OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USA Date:April30,2026 Subject;RequestforConfidentiality FCCID:2BU4M-FT001 ToWhomItMayConcern, PursuanttotheprovisionsoftheCommission’srulesTitle47Sections§0.457and§0.459,we arerequestingtheCommissiontowithholdthefollowingattachment(s)asconfidential documentsfrompublicdisclosureindefinitely. Thesedocumentscontaindetailedsystemandequipmentdescriptionsandareconsideredas proprietaryinformationinoperationoftheequipment.Thepublicdisclosureofthese documentsmightbeharmfultoourcompanyandwouldgivecompetitorsanunfairadvantage inthemarket. SchematicDiagram BlockDiagram PartsList OperationalDescription Tune-upProcedure SoftwareSecurityRequirementsforUNIIdevices 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:YaelKatz Title:AttorneyatLaw

AnnexA ExternalPhotos TestModelNo.:2BU4M-FT001 Page 1 of3 AnnexA ExternalPhotos TestModelNo.:2BU4M-FT001 Page 2 of3 AnnexA ExternalPhotos TestModelNo.:2BU4M-FT001 Page 3 of3

Size:2.5cm*2.3cm FCCID:2BU4M-FT001

AnnexB InternalPhotos TestModelNo.：2BU4M-FT001 Page 1 of2 PCBantenna AnnexB InternalPhotos TestModelNo.：2BU4M-FT001 Page 2 of2

MAXLABTestingCo.,Ltd.ReportNo.:MAX26040001P01-R01RF RFTESTREPORT ReportReferenceNo........................:MAX26040001P01-R01RF FCCID.................................................:2BU4M-FT001 Compiledby (position+printedname+signature) .. : Engineer/CindyZheng Supervisedby (position+printedname+signature)..: Manager/HaleyWen Approvedby (position+printedname+signature)..: RFManager/VivianJiang Dateofissue.........................................:April30,2026 TestingLaboratoryName...............:MAXLABTestingCo.,Ltd. Address ................................................. : 1/F,BuildingB,XinshidaiGRPark,ShiyanStreet,Bao'anDistrict, Shenzhen,Guangdong,518052,People’sRepublicofChina Applicant’sname...............................: CorvantaGroupLLC Address ................................................. :265NDuPonthwysuite12NewCastleDE19720UnitedStates Testspecification .............................. : Standard................................................: FCCPart15.231 KDB447498D01V06 ANSIC95.1-2019 FCC§1.1310 MAXLABTestingCo.,Ltd.Allrightsreserved. Thispublicationmaybereproducedinwholeorinpartfornon-commercialpurposesaslongasthe MAXLABTestingCo.,Ltd.isacknowledgedascopyrightownerandsourceofthematerial.MAXLAB TestingCo.,Ltd.takesnoresponsibilityforandwillnotassumeliabilityfordamagesresultingfromthe reader'sinterpretationofthereproducedmaterialduetoitsplacementandcontext. Testitemdescription ........................ :Carkeys TradeMark............................................:N/A Manufacturer.........................................: CorvantaGroupLLC Model/Typereference ......................... :2BU4M-FT001 ListedModels ...................................... :N/A Ratings...................................................:DC3VFromBattery Modulation...........................................:ASK Frequency..............................................315MHz Result.....................................................:PASS MAXLABTestingCo.,Ltd.ReportNo.:MAX26040001P01-R01RF RFExposureEvaluation 1.ThecorrespondingSARExclusionThresholdcondition,listedbelow: 1)The1-gand10-gSARtestexclusionthresholdsfor100MHzto6GHzattestseparationdistances≤50 mmaredeterminedby: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance, mm)].[Vf(GHz)]≤3.0for1-gSARand≤7.5for10-gextremitySAR,16where ➢f(GHz)istheRFchanneltransmitfrequencyinGHz ➢PoweranddistanceareroundedtothenearestmWandmmbeforecalculation ➢Theresultisroundedtoonedecimalplaceforcomparison Thetestexclusionsareapplicableonlywhentheminimumtestseparationdistanceis≤50mmandfor transmissionfrequenciesbetween100MHzand6GHz.Whentheminimumtestseparationdistanceis<5 mm,adistanceof5mmisappliedtodetermineSARtestexclusion. 2)At100MHzto6GHzandfortestseparationdistances>50mm,theSARtestexclusionthresholdis determinedaccordingtothefollowing: a)[Thresholdat50mminstep1)+(testseparationdistance-50mm):(f(MHz)/150)]mW,at100MHz to1500MHz b)[Thresholdat50mminstep1)+(testseparationdistance-50mm)-10]mWat>1500MHzand≤ 6GHz 3)Atfrequenciesbelow100MHz,thefollowingmaybeconsideredforSARtestexclusion. a)Thethresholdatthecorrespondingtestseparationdistanceat100MHzinstep2)ismultipliedby [1+log(100/f(MHz))]fortestseparationdistances>50mmand<200mm. b)Thethresholddeterminedbytheequationina)for50mmand100MHzismultipliedby/2fortest separationdistances≤50mm. c)SARmeasurementproceduresarenotestablishedbelow100MHz.WhenSARtestexclusioncannot beapplied,aKDBinquiryisrequiredtodetermineSARevaluationrequirementsforanytestresultstobe acceptable. 2.CLASSIFICATION Theantennaofthisproduct,undernormalusecondition,isatlessthan20cmawayfromthebodyofthe user.So,thisdeviceisclassifiedasPortableDevice. EUTSpecification Antennatype:PCBAntenna Antennagain(Max)2dBi EvaluationappliedMPEEvaluation SAREvaluation MAXLABTestingCo.,Ltd.ReportNo.:MAX26040001P01-R01RF 3.SARTESTEXCLUSIONTHRESHOLDS ThemeasuredconductedPKPower Mode Frequency(MHz)Fieldstrength(dBuV/m@3) EIRP(dBm) TX31555.72-44.24 Note: EIRP=E Meas +20log(d Meas )-109.5 EIRPistheequivalentisotropicallyradiatedpower,indBm E Meas isthefieldstrengthoftheemissionatthemeasurementdistance,indBuV/m d Meas isthemeasurementdistance,inm EIRP=E+20log(d)-109.5 ThetunedconductedPKPower(declaredbyclient) Mode Frequency(MHz)TargetPower (dBm) Tolerance ±(dBm) TX315-441 Frequency (MHz) Minimum Separation distance(mm) RFOutputpowerResultLimit for1-g SAR Verdict (dBm)(mW) 3155-430.000050.0000063.0 Exempt from SAR Conclusion ThereforethisdevicecomplieswithFCC'sRFradiationexposurelimitsforgeneralpopulationwithout SARevaluation.

Productspecification CustomernameDongguan Aike Precision Technology Co., Ltd Room 602, Building 19, Changping Jewelry Culture Productname 315MHz PCB Antenn Productitem Sampledeliverydate ManufcturerRexense 1.Technicalindicatorsofpr Antenna model RexPCB_FT001-V1.0 oducts FrequencyRange(MHz) BandWidth(MH 315 z)5 Impedance(Ω） 50 ReturnLoss（dB） -15.6 Gain(dBi)MAX Polariza 2dBi onLinearVercal AntennaMaterialPCB OperangTemp（°C） -30~70 StorageTemp（°C） -40~85 2. Productpicture Industry Center, 568 Huanchang North Road, Changping Town, Dongguan City, Guangdong Province 1.2mm 4 2 . 8 m m 32.1mm 3.ReturnLoss 4.VSWR 5.Three-dimensionalcoordinates m1 315.1MHz -15.5611 m2 314.2MHz -9.848 m3 316.8MHz -10.1681 315316317318319320314313312311 310 315316317318319320314313312311 310 m1 315.1MHz 1.9196 m2 314.2MHz 1.6651 m3 316.8MHz 1.4134 ANT db: 315MHz 2dbi 314MHz 1dbi 313MHz 0dbi 312MHz 0dbi 316MHz 1dbi 317MHz 0dbi 318MHz 0dbi 6.3Dgainpaern 7.E，hplan

MAXLABTestingCo.,Ltd. ReportNo.:MAX26040001P01-R01 Page 1 of26 FCCPART15SUBPARTCTESTREPORT FCCPART15.231 ReportReferenceNo........................:MAX26040001P01-R01 FCCID.................................................:2BU4M-FT001 Compiledby (position+printedname+signature)..: Engineer/CindyZheng Supervisedby (position+printedname+signature) .. : Manager/HaleyWen Approvedby (position+printedname+signature)..: RFManager/VivianJiang Dateofissue ......................................... :April30,2026 TestingLaboratoryName .............. :MAXLABTestingCo.,Ltd. Address.................................................: 1/F,BuildingB,XinshidaiGRPark,ShiyanStreet,Bao'anDistrict, Shenzhen,Guangdong,518052,People’sRepublicofChina Applicant’sname ............................... : CorvantaGroupLLC Address.................................................:265NDuPonthwysuite12NewCastleDE19720UnitedStates Testspecification..............................: Standard................................................: FCCPart15.231 ANSIC63.10:2020 MAXLABTestingCo.,Ltd.Allrightsreserved. Thispublicationmaybereproducedinwholeorinpartfornon-commercialpurposesaslongasthe MAXLABTestingCo.,Ltd.isacknowledgedascopyrightownerandsourceofthematerial.MAXLAB TestingCo.,Ltd.takesnoresponsibilityforandwillnotassumeliabilityfordamagesresultingfromthe reader'sinterpretationofthereproducedmaterialduetoitsplacementandcontext. Testitemdescription ........................ :Carkeys TradeMark ............................................ :N/A Manufacturer ......................................... : CorvantaGroupLLC Model/Typereference.........................:2BU4M-FT001 ListedModels ...................................... :N/A Ratings ................................................... :DC3VFromBattery Modulation ........................................... :ASK Frequency..............................................315MHz Result.....................................................:PASS MAXLABTestingCo.,Ltd. ReportNo.:MAX26040001P01-R01 Page 2 of26 TESTREPORT Equipmentunder Test : Carkeys Model/Type: 2BU4M-FT001 ListedModels:N/A ModelDeclaration:N/A Applicant: CorvantaGroupLLC Address:265NDuPonthwysuite12NewCastleDE19720UnitedStates Manufacturer: CorvantaGroupLLC Address: 265NDuPonthwysuite12NewCastleDE19720UnitedStates TestResult:PASS Thetestreportmerelycorrespondstothetestsample. Itisnotpermittedtocopyextractsofthesetestresultwithoutthewrittenpermissionofthetest laboratory. MAXLABTestingCo.,Ltd. ReportNo.:MAX26040001P01-R01 Page 3 of26 Contents 1TESTSTANDARDS..............................................................................................................................4 2SUMMARY.................................................................................................................................................5 2.1GeneralRemarks..........................................................................................................................................5 2.2ProductDescription.....................................................................................................................................5 2.3EquipmentUnderTest.................................................................................................................................5 2.4ShortdescriptionoftheEquipmentunderTest(EUT).............................................................................5 2.5BlockDiagramofTestSetup.......................................................................................................................5 2.6SpecialAccessories.....................................................................................................................................6 2.7RelatedSubmittal(s)/Grant(s)...................................................................................................................6 2.8Modifications.................................................................................................................................................6 3TESTENVIRONMENT........................................................................................................................7 3.1Addressofthetestlaboratory....................................................................................................................7 3.2TestFacility...................................................................................................................................................7 3.3Environmentalconditions............................................................................................................................7 3.4Summaryofmeasurementresults..............................................................................................................8 3.5Statementofthemeasurementuncertainty..............................................................................................8 3.6EquipmentsUsedduringtheTest..............................................................................................................9 4TESTCONDITIONSANDRESULTS.......................................................................................11 4.1ACPowerConductedEmission................................................................................................................11 4.2RadiatedEmission......................................................................................................................................12 4.320dBBandwidth..........................................................................................................................................18 4.4DeactivationTime.......................................................................................................................................19 4.5AntennaRequirement................................................................................................................................20 5TESTSETUPPHOTOSOFTHEEUT............................…

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Testsetup TestModelNo.:2BU4M-FT001