2BVUK-JK-EFN-TK10E_Fin 2.0

JayKayGmbH Heidachstr.70/2,88079Kressbronn,Germany AttestationStatements NotCoveredEntityApplicant&NotCoveredEquipment To:FederalCommunicationsCommissionDate:May.7,26 7435OaklandMillsRoad, Columbia,MD21046,USA Ref:InformationRequiredbySection2.911(d)(5)(i)&(ii) FCCID:2BVUK-JK-EFN-TK10 JayKayGmbH(“theapplicant”)certifiesthat,asofthedateofthefilingoftheapplication,theapplicant isnotidentifiedontheCoveredList,establishedpursuantto§1.50002ofreferencechapter,asan entityproducing“covered”communicationequipment.Theequipmentforwhichauthorizationissought isnot“covered”telecommunicationsequipmentandvideosurveillanceequipmentproducedbyentities identifiedontheCommission’sCoveredListthatprohibitedfromreceivinganequipmentauthorization pursuanttosection§2.903oftheFCCrules. Sincerelyyours, ApplicantSignature PrintedName:BenedictKuhlmann Address:Heidachstr.70/2,88079Kressbronn,Germany Tel.:+4975433009999 Email:[email protected]

JayKayGmbH Heidachstr.70/2,88079Kressbronn,Germany 1|Page AttestationStatements To:FederalCommunicationsCommissionDate:May.7,26 7435OaklandMillsRoad, Columbia,MD21046,USA Subject:AttestationofCompliancewithFCCCoveredListSoftwareRequirements FCCID:[2BVUK-JK-EFN-TK10] ProductName:[E_Fin2.0] Thisletterservesasanattestationthattheequipmentidentifiedabove☐is/☒isnot(selectone)"covered" softwareasdefinedundertheFederalCommunicationsCommission(FCC)CoveredListrequirements,as outlinedinFCC22-84andKDB986446. Specifically,theundersignedcertifiesthattheequipmentforwhichauthorizationissought: 1.Doesnotcontaincybersecurityoranti-virussoftwareproducedorprovidedbyKasperskyLab, Inc.oranyofitssuccessors,assignees,parents,subsidiaries,affiliates,oranyentitythathasrebranded orrelabeledsoftwareproducedbytheaforementionedentities. 2.Doesnothavethecapabilitytostore,run,ordeliveranysoftwareidentifiedontheFCCCoveredList, includingbutnotlimitedtocybersecurityandanti-virussoftware. Tosupportthisattestation,theappendixevaluationdocumentationhasbeenpreparedandisincludedinthe certificationfiling. Thisattestationisbasedonathoroughevaluationofthedevice'sdesign,functionality,andsoftware environment.Theundersignedaffirmsthattheinformationprovidedisaccurateandcompletetothebestof theirknowledge. Sincerelyyours, ApplicantSignature PrintedName:BenedictKuhlmann Address:Heidachstr.70/2,88079Kressbronn,Germany Tel.:+4975433009999 Email:[email protected] JayKayGmbH Heidachstr.70/2,88079Kressbronn,Germany 2|Page EvaluationregardingtotheCoveredListSoftware: Compliance Methodology EvaluationProcessResults Deviceis Inherent compliance ☒ TheChipset(s)usedislimitedtorun theCybersecurityoranti-virus software. Compliance ☒ TheMemoryusedislimitedtorunthe Cybersecurityoranti-virussoftware. Compliance. ☒ Thereisstoragecapacitylimitationfor storeorinstalltheCybersecurityor anti-virussoftware. Compliance ☒ Operatingsystemusedislimitedto run,installordelivertheCybersecurity oranti-virussoftware. Compliance Deviceisnot Inherent compliance ☐ EvaluationBasedonSoftware BillofMaterials(SBoM) Seeattached“SBoM“ Note:TheSBoMcontentislimited tothescopeofcoveredlist software(e.g.antivirusand cybersecuritysoftware). ☐ EvaluationBasedonScanfor Softwareonthedevice ☐ EvaluationBasedonFilesystemscan ☐ EvaluationBasedonRunning softwarecheck

JayKayGmbH Heidachstr.70/2,88079Kressbronn,Germany U.S.AgentLetterofAttestation To:FederalCommunicationsCommission 7435OaklandMillsRoad,Columbia,MD21046,USA Date:May.7,26 Ref:AttestationStatement–Part2.911(d)(7)filing FCCID:[2BVUK-JK-EFN-TK10] Address:16755CoyoteBushDrUnit84,SanDiego, CA92127UnitedStates Signature [JayKayGmbH](“theapplicant”)certifiesthat,asofthedateofthefilingoftheapplication,HOPEK CORPORATIONINC(“theagent”)isourdesignatedU.S.agentforserviceofprocessfortheabove referenceFCCID.TheapplicantacceptstomaintainanagentforserviceofprocessintheUnited Statesfornolessthanoneyearaftereitherthegranteehaspermanentlyterminatedallmarketing andimportationoftheapplicableequipmentwithintheU.S.,ortheconclusionofanyCommission- relatedadministrativeorjudicialproceedinginvolvingtheequipment,whicheverislater.The applicantfurtheracknowledgesitisourresponsibilitytoinformtheFCCwhenevertheagent informationchanges. HOPEKCORPORATIONINC("theagent)understanditistheagent'sobligationtoacceptservice ofprocessintheUnitedStatesformattersrelatedtotheapplicableequipment,andatthephysical U.S.addressandemailaddress. DesignatedU.S.Agent CompanyName:HOPEKCORPORATIONINC FRN:0034562900 : ContactPerson:YangyangXu Tel:(561)875-9826Email:[email protected] Applicant CompanyName:JayKayGmbH FRN:0038349379 Address:Heidachstr.70/2,88079Kressbronn, Germany Signature: ContactPerson:BenedictKuhlmann Tel:+4975433009999Email:[email protected]

JayKayGmbH Heidachstr.70/2,88079Kressbronn,Germany (May.07,2026) FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Subject:ConfidentialityRequestfor:FCCID:2BVUK-JK-EFN-TK10 PursuanttoSections0.457and0.459oftheCommission’sRules,weherebyrequestpermanent confidentialtreatmentoftheexhibitsaccompanyingthiscertificationapplicationasoutlinedbelow: BlockDiagram Schematics OperationalDescription Theaboveexhibitscontaintradesecretsand/orproprietaryinformationthatarenotpubliclyavailableand materialsthattheApplicanthasspentconsiderableeffortsindeveloping.Publicdisclosureofthesemay beharmfultotheApplicantandgiveanunfairadvantagetocompetitorsonthemarket. PursuanttoDA04-1705,theapplicantalsorequeststemporaryconfidentialtreatmentoftheexhibits outlinedbelowforaperiodof(upto180)daysfromthedateofequipmentauthorizationandpriorto marketingintheUnitedStatestopreventtheprematurereleaseofanysensitiveinformation.Applicantis awareoftheirresponsibilitytonotifyDERYCOMintheeventinformationregardingtheproductorthe productismadeavailabletothepublicbeforetherequestedperiodhasexpired. UserManual  InternalPhotos  TestSetupPhotos Sincerely, Address:Heidachstr.70/2,88079Kressbronn,Germany Tel.:+4975433009999 Email:[email protected]

JayKayGmbH Heidachstr.70/2,88079Kressbronn,Germany (May.07,2026) FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Subject:AgentAuthorizationforFCCID:2BVUK-JK-EFN-TK10 I,theundersigned,herebyauthorizeShenzhenBKCTestingCo.,Ltd.toactonourbehalfinallmatters relatingtothisapplicationforequipmentcertification. AnyactcarriedoutbyShenzhenBKCTestingCo.,Ltd.shallhavethesameeffectasourownandI acknowledgethatallresponsibilityforcomplyingwiththetermsandconditionsofcertification,as specifiedbyDERYCOMCERTIFICATIONSERVICES,INC.,stillresideswithJayKayGmbH. WecertifythatwearenotsubjecttoadenialoffederalbenefitsthatincludesFCCbenefitspursuantto Section5301oftheAnti-DrugAbuseActof1988,21U.S.C.§862,andthatnopartytotheapplication,as definedin47CFR§1.2002(b),issubjecttoadenialoffederalbenefitsthatincludesFCCbenefits pursuanttothatsection. Sincerely, BenedictKuhlmann Tel:+4975433009999 Email:[email protected]

FCCID:2BVUK-JK-EFN-TK10 Label Labelsize:32mm*5mm Labelfont:Arial FCCID:2BVUK-JK-EFN-TK10

RFExposureevaluation FCCID2BVUK-JK-EFN-TK10 ProductNameE_Fin2.0 Model/Type reference JK-EFN-TK10 ExposurecategoryGeneralpopulation/uncontrolledenvironment EUTTypeProductionUnit 1.Reference ANSIC95.1–1999:IEEEStandardforSafetyLevelswithRespecttoHumanExposureto RadioFrequencyElectromagneticFields,3kHzto300GHz. FCCKDBpublication447498D01GeneralRFExposureGuidancev06:MobileandPortable DevicesRFExposureProceduresandEquipmentAuthorizationPolicies. FCCCFR47part11.1310:Radiofrequencyradiationexposurelimits. FCCCFR47part22.1093:Radiofrequencyradiationexposureevaluation:portabledevices 2.Requirement AccordingtoKDB447498D01GeneralRFExposureGuidancev06Section4.3.1Standalone SARtestexclusionconsiderations:“UnlessspecificallyrequiredbythepublishedRFexposure KDBprocedures,standalone1-gheadorbodyand10-gextremitySARevaluationforgeneral populationexposureconditions,bymeasurementornumericalsimulation,isnotrequired whenthecorrespondingSARTestExclusionThresholdcondition,listedbelow,issatisfied. Thesetestexclusionconditionsarebasedonsource-basedtime-averagedmaximum conductedoutputpoweroftheRFchannelrequiringevaluation,adjustedfortune-uptolerance, andtheminimumtestseparationdistancerequiredfortheexposureconditions.22The minimumtestseparationdistanceisdeterminedbythesmallestdistancefromtheantenna andradiatingstructuresoroutersurfaceofthedevice,accordingtothehostformfactor, exposureconditionsandplatformrequirements,toanypartofthebodyorextremityofauser orbystander(see5)ofsection4.1).ToqualifyforSARtestexclusion,thetestseparation distancesappliedmustbefullyexplainedandjustifiedbytheoperatingconfigurationsand exposureconditionsofthetransmitterandapplicablehostplatformrequirements,typicallyin theSARmeasurementorSARanalysisreport,accordingtotherequiredpublishedRF exposureKDBprocedures.WhennootherRFexposuretestingorreportingisrequired,a statementofjustificationandcompliancemustbeincludedintheequipmentapproval,inlieuof theSARreport,toqualifyfortheSARtestexclusion.Whenrequired,thedevicespecific conditionsdescribedintheotherpublishedRFexposureKDBproceduresmustbesatisfied beforeapplyingtheseSARtestexclusionprovisions;forexample,handheldPTTtwo-way radios,handsets,laptops&tabletsetc.23” [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance, mm)]·[√f(GHz)]≤3.0for1-gSARand≤7.5for10-gextremitySAR,where: •f(GHz)istheRFchanneltransmitfrequencyinGHz •PoweranddistanceareroundedtothenearestmWandmmbeforecalculation •Theresultisroundedtoonedecimalplaceforcomparison •3.0and7.5arereferredtoasthenumericthresholdsinthestep2below Thetestexclusionsareapplicableonlywhentheminimumtestseparationdistanceis≤50 mmandfortransmissionfrequenciesbetween100MHzand6GHz.Whentheminimumtest separationdistanceis<5mm,adistanceof5mmaccordingto5)insection4.1isappliedto determineSARtestexclusion. Whenoneofthefollowingtestexclusionconditionsissatisfiedforallcombinationsof simultaneoustransmissionconfigurations,furtherequipmentapprovalisnotrequiredto incorporatetransmittermodulesinhostdevicesthatoperateinthemixedmobileandportable hostplatformexposureconditions.Thegranteeisresponsiblefordocumentingthisaccording toClassIpermissivechangerequirements.AntennasthatqualifyforstandaloneSARtest exclusionmustapplytheestimatedstandaloneSARtodeterminesimultaneoustransmission testexclusion. a)The[∑of(thehighestmeasuredorestimatedSARforeachstandaloneantenna configuration,adjustedformaximumtune-uptolerance)/1.6W/kg]+[∑ofMPEratios]is≤ 1.0. b)TheSARtopeaklocationseparationratiosofallsimultaneouslytransmittingantennapairs operatinginportabledeviceexposureconditionsareall≤0.04,andthe[∑ofMPEratios]is ≤1.0. 3.ConductedPeakOutputPower TXfrequencyrange:433.99MHz Devicecategory:Portabledevice(Distance:5mm)Max.FieldStrength:76.69dBuV/m@3m EIRP=E-104.8+20logD=76.69-104.8+20log3=-18.57dBm MaximumConductedOutputPower:-18.57dBm Tune-up:-18±1 4.EvaluationResult Band/Modef(GHz) Antenna Distance (mm) RFoutputpower SARTest Exclusion Threshold SARTest Exclusion dBmmW ASK0.433995-17 0.02 0.0062<3.0Yes Remark: 1.Outputpowerincludingtuneuptolerance; 2.Whentheminimumtestseparationdistanceis<5mm,adistanceof5mmaccordingtof)in section4.1isappliedtodetermineSARtestexclusion. 5.Conclusion ThemeasurementresultscomplywiththeFCCLimitper47CFR2.1093fortheuncontrolled RFExposureandSARExclusionThresholdperKDB447498v06. ------Endofthereport------

Description: 1204 433MHz FR4 Chip Antenna PART NUMBER: ANT1204F002R0433A In the effort to improve our products, we reserve the right to make changes judged to be necessary. CONFIDENTIAL AND PROPRIETARY INFORMATION This document contains confidential and proprietary information ofPulse Electronics, Inc. (Pulse) and is protected by copyright, trade secret and other state and federal laws. Its receipt or possession does not convey any rights to reproduce, disclose its contents, or to manufacture, use or sell anything it may describe. Reproduction, disclosure or use without specific written authorization of Pulse is strictly forbidden. For more information: Pulse Worldwide HeadquartersPulse/Larsen AntennasEurope HeadquartersPulse (Suzhou) Wireless Products Co, Inc. 15255 Innovation Drive #100Pulse GmbH & Do, KG99 HuoJuRoad(#29 Bldg,4 th Phase San Diego, CA 92128Vancouver, WA 98683Zeppelinstrasse15Suzhou New District USAUSAHerrenberg, Germany Jiangsu Province, Suzhou 215009 PR China Tel:1-858-674-8100Tel: 1-360-944-7551 - Tel: 49 7032 7806 0 Tel: 86 512 6807 9998 18110 SE 34 th St Bldg2 Suite 250 Features: Applications: •Size : 12.3x4.0x1.6 mm •Omni-directional Radiation •Tape & reel automatic mounting •Reflow process compatible •RoHScompliant •Smart meter •Industrial remote control •ISM band equipment 1 In the effort to improve our products, we reserve the right to make changes judged to be necessary. CONFIDENTIAL AND PROPRIETARY INFORMATION This document contains confidential and proprietary information ofPulse Electronics, Inc. (Pulse) and is protected by copyright, trade secret and other state and federal laws. Its receipt or possession does not convey any rights to reproduce, disclose its contents, or to manufacture, use or sell anything it may describe. Reproduction, disclosure or use without specific written authorization of Pulse is strictly forbidden. Description: 1204 433MHz FR4 Chip Antenna PART NUMBER: ANT1204F002R0433A 2 ELECTRICAL SPECIFICATIONS MECHANICALDRAWING Working Frequency433 MHz Bandwidth28 MHz(Typ.) ReturnLoss6.5 dB Min. PolarizationLinear Azimuth BeamwidthOmni-directional Peak Gain0.79 dBi(Typ.) Impedance50 Ω Operating Temperature-40~105 °C Maximum Power2 W TerminationNi/ Sn(Environmentally-Friendly Leadless) Resistance to Soldering Heats260 °C , 10sec. NOTE 1. The specification is defined on Pulse evaluation board Dimension L (mm)12.3 ± 0.20 W (mm)4.00 ± 0.20 T (mm)1.60 ± 0.20 A (mm)0.50 ± 0.20 Terminal nameFunction S1Feeding Point S2Soldering Point In the effort to improve our products, we reserve the right to make changes judged to be necessary. CONFIDENTIAL AND PROPRIETARY INFORMATION This document contains confidential and proprietary information ofPulse Electronics, Inc. (Pulse) and is protected by copyright, trade secret and other state and federal laws. Its receipt or possession does not convey any rights to reproduce, disclose its contents, or to manufacture, use or sell anything it may describe. Reproduction, disclosure or use without specific written authorization of Pulse is strictly forbidden. Description: 1204 433MHz FR4 Chip Antenna PART NUMBER: ANT1204F002R0433A 3 REFERENCE DESIGN OF EVALUATION BOARD Outlookand dimension of evaluation board Details of soldering Pad In the effort to improve our products, we reserve the right to make changes judged to be necessary. CONFIDENTIAL AND PROPRIETARY INFORMATION This document contains confidential and proprietary information ofPulse Electronics, Inc. (Pulse) and is protected by copyright, trade secret and other state and federal laws. Its receipt or possession does not convey any rights to reproduce, disclose its contents, or to manufacture, use or sell anything it may describe. Reproduction, disclosure or use without specific written authorization of Pulse is strictly forbidden. Description: 1204 433MHz FR4 Chip Antenna PART NUMBER: ANT1204F002R0433A 4 ELECTRICAL PERFORMANCES Return loss Radiation pattern Marker data 1. 419MHz, -6.5dB 2. 433MHz, -16 dB 3. 447MHz, -6.5dB Gain (dBi) Y X Z Z axle X axle Y axle YNH00131 Evaluation board and XYZ direction Frequency= 433 MHz Max gain = 0.79 dBi, at (150,330) MEG (mean effective gain)= -4.84 dBi Directivity (dB) = 6.35 Efficiency = -5.56dB, 27.79 % In the effort to improve our products, we reserve the right to make changes judged to be necessary. CONFIDENTIAL AND PROPRIETARY INFORMATION This document contains confidential and proprietary information ofPulse Electronics, Inc. (Pulse) and is protected by copyright, trade secret and other state and federal laws. Its receipt or possession does not convey any rights to reproduce, disclose its contents, or to manufacture, use or sell anything it may describe. Reproduction, disclosure or use without specific written authorization of Pulse is strictly forbidden. Description: 1204 433MHz FR4 Chip Antenna PART NUMBER: ANT1204F002R0433A 5 REVISION HISTORY RevisionDateDescription Version 1 Apr. 29, 2021 -New issue for Maximum Power 2W.

ShenzhenBKCTestingCo.,Ltd.ReportNo.:BKC26041840DE TestReportTel:4000-875-3820755-84829082Web:Http://www.bkc-lab.comPage1of26 TESTREPORT Applicant:JayKayGmbH Address:Heidachstr.70/2,88079Kressbronn,Germany Manufacturer:JayKayGmbH Address:Heidachstr.70/2,88079Kressbronn,Germany ProductName:E_Fin2.0 ModelNumber:JK-EFN-TK10 Trademark:N/A FCCID:2BVUK-JK-EFN-TK10 TestDate: Apr.10,2026-Apr.23,2026 DateofReport: Apr.23,2026 TestResult: ThisdevicedescribedabovehasbeentestedbyBKC,andthetest resultsshowthattheequipmentundertest(EUT)isincompliance withtheStandardrequirements.Anditisapplicableonlytothetested sampleidentifiedinthereport. TestProcedureUsed: Standards:FCCCFRTitle47Part15SubpartCSection15.231 ANSI C63.10-2020+Cor.1-2023 Preparedby(TestEngineer): CareyZheng Reviewer(Supervisor): CaseyWang Approved(Manager): JerryLiao ShenzhenBKCTestingCo.,Ltd.ReportNo.:BKC26041840DE TestReportTel:4000-875-3820755-84829082Web:Http://www.bkc-lab.comPage2of26 TABLEOFCONTENT 1.GeneralInformation......................................................................................4 1.1.DescriptionofDevice(EUT).......................................................................................................................4 1.2.ChannelList..................................................................................................................................................4 1.3.Summaryoftestresult................................................................................................................................4 1.4.SpecialAccessoriesandAuxiliaryEquipment........................................................................................4 1.5.Testmode......................................................................................................................................................4 1.6.BlockDiagram...............................................................................................................................................5 1.7.TestConditions.............................................................................................................................................5 1.8.MeasurementUncertainty(95%confidencelevels,k=2)......................................................................5 1.9.TestFacility....................................................................................................................................................6 1.10.TestEquipment...........................................................................................................................................7 2.Conductedemissionatthemainsterminalstest......................................9 2.1.Limit................................................................................................................................................................9 2.2.TestSetup......................................................................................................................................................9 2.3.TestProcedure..............................................................................................................................................9 2.4.TestResult...................................................................................................................................................10 3.FundamentalfieldstrengthandRadiatedSpuriousEmissions...........12 3.1.Limit..............................................................................................................................................................12 TestSetup............................................................................................................................................................13 3.2.TestProcedure............................................................................................................................................15 TestResult...........................................................................................................................................................16 4.BandwidthTest............................................................................................19 4.1.Limit..............................................................................................................................................................19 4.2.TestSetup....................................................................................................................................................19 4.3.TestProcedure............................................................................................................................................19 4.4.TestResult...................................................................................................................................................20 5.CalculationofAverageFactor...................................................................21 5.1.Calculation...................................................................................................................................................21 6.Dwelltime.....................................................................................................23 6.1.ApplicableStandard...................................................................................................................................23 6.2.TestSetup....................................................................................................................................................23 6.3.TestProcedure............................................................................................................................................23 6.4.TestResult...................................................................................................................................................23 7.AntennaRequirement.................................................................................24 8.TestPhotographs....…

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