2BVUK-JK-EF2-1-SUSJAYKAY e-FIN 2.0

JayKayGmbH Heidachstr.70/2,88079Kressbronn,Germany FCCApplicationforFRN:0038349379 JayKayGmbHcertifiesthat,asofthedateofthefilingoftheapplication,HOPEK CORPORATIONINCisourdesignatedU.S.agentforserviceofprocessfortheabove referencedFCCID.JayKayGmbHacceptstomaintainanagentfornolessthanoneyear afterthegranteehasterminatedallmarketingandimportationortheconclusionofany Commission-relatedproceedinginvolvingtheequipment. HOPEKCORPORATIONINCaccepts,asofthedateofthefilingoftheapplication,the obligationofthedesignatedU.S.agentforserviceofprocessfortheabovereferencedFCC ID. DesignatedU.S.AgentInformation: Name:HOPEKCORPORATIONINC Address:16755CoyoteBushDrUnit84,SanDiego,CA92127UnitedStates FRN：0034562900 ContactPerson:YangyangXu Tel.:(561)875-9826 Email:[email protected] Sincerely Date: 2026-06-26 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements Part 2.911(d)(7) Filing SUBJECT: FCC Application for FCC ID: 2BVUK-JK-EF2-1-SUS , SignedonbehalfofJayKayGmbHSignedonbehalfofHOPEKCORPORATION INC Name:BenedictKuhlmannName:YangyangXu Title:ManagerTitle: Date:2026-06-26Date:2026-06-26

Rev1/26/2023 JayKayGmbH Heidachstr.70/2,88079Kressbronn,Germany FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:06-25-2026 Ref:AttestationStatementsPart2.911(d)(5)(i)Filing FCCID:2BVUK-JK-EF2-1-SUS JayKayGmbHcertifiesthattheequipmentforwhichauthorizationissoughtisnot“covered”equipment prohibitedfromreceivinganequipmentauthorizationpursuanttosection2.903oftheFCCrules. JayKayGmbHcertifiesthattheequipmentforwhichauthorizationissoughtdoesnotinclude cybersecurityoranti-virussoftwareproducedorprovidedbyKasperskyLab,Inc.oranyofitssuccessors andassignees,includingequipmentwithintegratedKasperskyLab,Inc.(oranyofitssuccessorsand assignees)cybersecurityoranti-virussoftwarepursuanttoDA-24-886andKDB986446D01Covered EquipmentGuidancesectionB(2a). Deviceisinherentlycompliantbasedonhardwarelimitationsorsoftwarecontrols. or ASoftwareBillofMaterials(SBOM)isprovidedtotheTCBforreview,and Theend-userorthirdpartiescannotinstalladditionalsoftwareonthisdevice. Sincerely, BenedictKuhlmann Rev1/26/2023 JayKayGmbH Heidachstr.70/2,88079Kressbronn,Germany FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:06-25-2026 Ref:AttestationStatementsPart2.911(d)(5)(ii)Filing FCCID:2BVUK-JK-EF2-1-SUS JayKayGmbHcertifiesthat,asofthedateofthefilingoftheapplication,theapplicantisnotidentified ontheCoveredList(asaspecificallynamedentityoranyofitssubsidiariesoraffiliates)asanentity producing“covered”equipment. Sincerely, BenedictKuhlmann

JayKayGmbH Heidachstr.70/2,88079Kressbronn,Germany Date ： 06/25/2026 ProductModelNumber:JK-EF2.1-SUS FCCID：2BVUK-JK-EF2-1-SUS Towhomitmayconcern, Re:ProductCertificationRepresentativeAuthorizationLetter WeauthorizeQAILaboratoriesLtd.3980NorthFraserWay,BurnabyB.C. CanadaV5J5K5toactonourbehalfonallmattersconcerningtheabove namedequipment. Thisshallincludethefollowing: Testing Approvalapplicationsandprocedures WedeclarethatQAILaboratoriesLtd.isallowedtoforwardallinformation relatedtotheapprovalprojecttotheappliedcertificationbodyandtothe notificationentitiesandtodiscussanyissuesconcerningtheapproval application.AnyandallactscarriedoutbyQAILaboratoriesLtd.onour behalfshallhavethesameeffectasactsofourown. By: ContactListedonFCCWesbite Title:Manager Email:[email protected] Telephone:+4975433009999 Onbehalfof:JayKayGmbH

JayKayGmbH Heidachstr.70/2,88079Kressbronn,Germany OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USA Date:June29,2026 Subject;RequestforConfidentiality FCCID:2BVUK-JK-EF2-1-SUS ToWhomItMayConcern, PursuanttotheprovisionsoftheCommission’srulesTitle47Sections§0.457and§0.459,we arerequestingtheCommissiontowithholdthefollowingattachment(s)asconfidential documentsfrompublicdisclosureindefinitely. Thesedocumentscontaindetailedsystemandequipmentdescriptionsandareconsideredas proprietaryinformationinoperationoftheequipment.Thepublicdisclosureofthese documentsmightbeharmfultoourcompanyandwouldgivecompetitorsanunfairadvantage inthemarket. SchematicDiagram BlockDiagram OperationalDescription Inadditionaltoabovementioneddocuments,inordertocomplywiththemarketingregulations inTitle47CFR§2.803andtheimportationrulesinTitle47CFR§2.1204,whileensuringthat businesssensitiveinformationremainsconfidentialuntiltheactualmarketingofnewly authorizeddevices,werequestShortTermConfidentialityofthefollowingattachment(s); TestSetupPhotos InternalPhotos UserManual For45days,pursuanttoPublicNoticeDA04-1705. OR For180dayspursuanttoKDB726920D01. Itisourunderstandingthatallmeasurementtestreports,FCCIDlabelformatand correspondenceduringthecertificationreviewprocesscannotbegrantedasconfidential documentsandthisinformationwillbeavailableforpublicreviewoncethegrantofequipment authorizationisissued. Sincerely, Signature: Name:BenedictKuhlmann Title:Manager

FCCID:2BVUK-JK-EF2-1-SUS Photo1 Photo2 FCCID:2BVUK-JK-EF2-1-SUS Photo3 Photo4 FCCID:2BVUK-JK-EF2-1-SUS Photo5 Photo6 FCCID:2BVUK-JK-EF2-1-SUS Photo7 Photo8

FCCID:2BVUK-JK-EF2-1-SUS Label Labelsize:3cm*1cm Labelfont:Arial FCCID:2BVUK-JK-EF2-1-SUS

RFExposureevaluation FCCID2BVUK-JK-EF2-1-SUS ProductNameJAYKAYe-FIN2.0 Model/Type reference JK-EF2.1-SUS 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 ModulationChannel PeakOutputPower (dBm) PeakOutputPower (mW) BLE1M 03.142.06 193.002.00 392.421.75 BLE2M 03.172.07 193.002.00 392.411.74 TXfrequencyrange:433.99MHz Devicecategory:Portabledevice(Distance:5mm)Max.FieldStrength:75.90dBuV/m@3m EIRP=E-104.8+20logD=75.90-104.8+20log3=-19.36dBm MaximumConductedOutputPower:-19.36dBm Tune-up:-19±1 4.ManufacturingTolerance BLE1M ChannelChannel0Channel19Channel39 Target(dBm)332 Tolerance±(dB)1.01.01.0 BLE2M ChannelChannel0Channel19Channel39 Target(dBm)332 Tolerance±(dB)1.01.01.0 5.EvaluationResult Band/Modef(GHz) Antenna Distance (mm) RFoutputpower SARTest Exclusion Threshold SARTest Exclusion dBmmW FSK0.433995-18 0.02 0.0049<3.0Yes BLE2.40254 2.51 0.7786<3.0Yes Remark: 1.Outputpowerincludingtuneuptolerance; 2.Whentheminimumtestseparationdistanceis<5mm,adistanceof5mmaccordingtof)in section4.1isappliedtodetermineSARtestexclusion. 6.Conclusion ThemeasurementresultscomplywiththeFCCLimitper47CFR2.1093fortheuncontrolled RFExposureandSARExclusionThresholdperKDB447498v06. ------Endofthereport------

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 433-434MHz and 2400-2500M Hz FR 4 Internal Antenna PART NUMBER: ANT1204F002R0433A For more information: Pulse Worldwide HeadquartersPulse/Larsen AntennasPulse (Suzhou) Wireless Products Co, Inc. 99 HuoJuRoad(#29 Bldg,4 th 15255 Innovation Drive #100Phase San Diego, CA 92128Vancouver, WA 98683Suzhou New District USA Jiangsu Province, Suzhou 215009 PR China Europe Headquarters Pulse GmbH & Do, KG Zeppelinstrasse15 Herrenberg, GermanyUSA Tel: 1-360 - -944-Tel:1-858-674-81007551Tel: 49 7032 7806 0 Tel: 86 512 6807 9998 18110 SE 34 th St Bldg2 Suite 250 Features: •Size : 12.3x4.0x1.6 Applications: 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 and 2400-2500M Hz FR4 Internal Antenna PART NUMBER: ANT1204F002R0433A 2 ELECTRICAL SPECIFICATIONS MECHANICALDRAWING NOTE 1. The specification is defined on Pulse Working Frequency Bandwidth Return Loss Polarization Azimuth Beamwidth Peak Gain Impedance Operating Temperature Maximum Power Termination Resistance to Soldering Heats 433-434MHz and 2400-2500MHz 28 MHz(Typ.) 6.5 dB Min. Linear Omni-directional 433-434MHz: 0.79 dBi(Typ.) 2400-2500MHz: 0.91 dBi(Typ.) 50 Ω - 40~105 °C 2 W Ni/ Sn(Environmentally-Friendly Leadless) 260 °C , 10sec. evaluation board Dimension 12.3 ± 0.20 4.00 ± 0.20 1.60 ± 0.20 0.50 ± L (mm) W (mm) T (mm) A (mm)0.20 Terminal nameFunction S1 S2 Feeding Point Soldering 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 433-434MHz and 2400-25 00M Hz FR4 Internal Antenna PART NUMBER: ANT12 04F002R0433A 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 433-434MHz and 2400-2500M Hz FR 4 Internal 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 YNH00131 Y axleX axle Z axle Z X Gain (dBi) Y Evaluation board and XYZ direction Frequency= 433-434 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 433-434MHz and 2400-25 00M Hz FR4 Internal Antenna PART NUMBER: ANT12 04F002R0433A 5 REVISION HISTORY RevisionDateDescription Version 1 Apr. 29, 2021 -New issue for Maximum Power 2W. X-ZPlane Y-ZPlane X-YPlane 3D RadiationPattern Frequency (MHz) Avg. Gain (dBi) Peck Gain (dBi) Efficiency (%) 240024502500 -0.23-0.36-0.51 0.910.650.88 66 7068

ShenzhenBKCTestingCo.,Ltd.ReportNo.:BKC26062939FE-1 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:JAYKAYe-FIN2.0 ModelNumber:JK-EF2.1-SUS Trademark:JayKay FCCID:2BVUK-JK-EF2-1-SUS TestDate: May25,2026-Jun.10,2026 DateofReport: Jun.10,2026 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.:BKC26062939FE-1 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.TestP…

Text truncated - open the document above for the full version.