2A6AY-LK57CWireless Charging pad

SHENZHENLKTECHNOLOGYCO.,LTD Modeldifferences We: SHENZHENLKTECHNOLOGYCO.,LTDStatementthatAllthemodel“LK57C,LK52B,LK52C,LK52W, LK55C,LK55W,LK55G,LK55B,LK56,LK58C,LK59,LK60B,LK60W,LK61,LK62,LK63,LK65,LK66, LK68,LK69,LK70,ENBO,FOTOJOJO,MUGGO”areidenticalexceptmodelname. AllabovemodelsareidenticalinthesamePCBlayout,interiorstructureandelectricalcircuits. Theonlydifferenceismodelnameforcommercialpurpose. CityandCountry:Date:Name: (thismustbeaperson) Function:Signature: (orofficialcompanystamp) Shenzhen2022.04.12QuanhaiChenmanager

C5266091_X8_Ed.1 1/1 LetterofAuthorization <SHENZHENLKTECHNOLOGYCO.,LTD> Company:SHENZHENLKTECHNOLOGYCO.,LTD Address:Room201,2ndfloor,BuildingA,No.21FurongRoad,Gushu, xixiangSub-district,Baoandistrict,Shenzhen,China ProductName:WirelessChargingpad ModelNumber:LK57C,LK52B,LK52C,LK52W,LK55C,LK55W,LK55G, LK55B,LK56,LK58C,LK59,LK60B,LK60W,LK61,LK62,LK63,LK65, LK66,LK68,LK69,LK70,ENBO,FOTOJOJO,MUGGO FCCIdentifier:2A6AY-LK57C WeauthorizeLGAITechnologicalCenterS.A.,RondadelaFontdelCarme,s/n, 08193Bellaterra,Spain,toactonourbehalfonallmattersconcerningthe abovenamedequipment. AnyindividualwithinLGAITechnologicalCenterS.A.isauthorizedtoactonour behalfandtakeactionontheapplication. WedeclarethatauthorizeLGAITechnologicalCenterS.A.,RondadelaFontdel Carme,s/n,08193Bellaterra,Spain,isallowedtoforwardallinformation relatedtotheapprovalprojecttotheFederalCommunicationCommissionand todiscussanyissuesconcerningtheapprovalapplication.Anyandallacts carriedoutbyLGAITechnologicalCenterS.A.onourbehalfshallhavethe sameeffectasactsofourown. Name:QuanhaiChenDate:2022.04.12 Title:Manager Signatureofapplicant:

C5266091_X10_Ed.1 1/1 SHENZHENLKTECHNOLOGYCO.,LTD Room201,2ndfloor,BuildingA,No.21FurongRoad,Gushu,xixiang Sub-district,Baoandistrict,Shenzhen,China Date:2022.04.12 Subject:RequestforConfidentiality FCCID:2A6AY-LK57C ToWhomItMayConcern, PursuanttotheprovisionsofSections0.457and0.459ofCommission'srules (47CFR0.457,0.459),wearerequestingtheCommissiontowithholdthefollowing attachment(s)asconfidentialdocumentfrompublicdisclosure. ExhibitsLong-Term Confidentiality Short-Term Confidentiality IDLabel/LocationNoNo AttestationStatementNoNo ExternalPhotosNo BlockDiagram Schematics TestReportNoNo TestSetupPhotosNo User’sManual InternalPhotosNo PartsList/TuneUp RFExposureInfo OperationalDescription CoverLetter(s)NoNo SDRSoftware/SecurityInfoNo Incaseofshort-termConfidentiality,theapplicantrequeststheexhibitsselected abovearewithheldfrompublicviewforaperiodof_180_daysfromthedateofthe GrantofEquipmentAuthorizationandpriortomarketing. Abovementioneddocumentcontainsdetailedsystemandequipmentdescriptionare consideredasproprietaryinformationinoperationoftheequipment.Thepublic disclosureofabovedocumentsmightbeharmfultoourcompanyandwouldgive competitoranunfairadvantageinthemarket. Itisourunderstandingthatallmeasurementtestreports,FCCIDlabelformatand correspondentduringcertificationreviewprocesscannotbegrantedasconfidential documentsandthoseinformationwillbeavailableforpublicreviewoncethegrantof equipmentauthorizationisissued. Sincerely, Name:QuanhaiChenDate:2022.04.12 Title:Manager Signatureofapplicant:

FCCID:2A6AY-LK57C EUT

FCCIDLABELINGANDLOCATION FCCIDLabel FCCIDLabelLocation Thelabelshownshallbepermanentlyaffixedataconspicuouslocationonthedeviceandbe readilyvisibletotheuseratthetimepurchase(Labelingrequirementsper2.925) WirelessChargingpad FCCID:2A6AY-LK57C

FCCID:2A6AY-LK57C LoopcoilAntenna

FCCID:2A6AY-LK57C Page1of4 RFExposureEvaluation 1MeasuringStandard KDB680106D01RFExposureWirelessChargingAppsv03 2Requirements Accordingtotheitem5ofKDB680106D01v03: Inductivewirelesspowertransferapplicationsthatmeetallofthefollowingrequirementsareexcludedfrom submittinganRFexposureevaluation. (1)Powertransferfrequencyislessthan1MHz. (2)Outputpowerfromeachprimarycoilislessthanorequalto15watts. (3)Thesystemmayconsistofmorethanonesourceprimarycoils,chargingoneormoreclients.If morethanoneprimarycoilispresent,thecoilpairsmaybepoweredonatthesametime. (4)Clientdeviceisplaceddirectlyincontactwiththetransmitter. (5)Mobileexposureconditionsonly(portableexposureconditionsarenotcoveredbythisexclusion). (6)TheaggregateH-fieldstrengthsanywhereatorbeyond15cmsurroundingthedevice,and20cmaway fromthesurfacefromallcoilsthatbydesigncansimultaneouslytransmit,andwhilethosecoilsare simultaneouslyenergized,aredemonstratedtobelessthan50%oftheapplicableMPElimit. Limits Thecriterialistedinthefollowingtableshallbeusedtoevaluatetheenvironmentimpactofhumanexposure toradiofrequency(RF)radiationasspecifiedin1.1307(b) LimitsforMaximumPermissibleExposure(MPE) 3TestSetup FCCID:2A6AY-LK57C Page2of4 4TestProcedure 1)TheRFexposuretestwasperformedinanechoicchamber. 2)Themeasurementprobewasplacedattestdistance(15cmfromallsidesand20cmfromthetop)whichis betweentheedgeofthechargerandthegeometriccenterofprobe. 3)Thehighestemissionlevelwasrecordedandcomparedwithlimitassoonasmeasurementofeachpoints (A,B,C,D,E)werecompleted. 4)TheEUTwasmeasuredaccordingtothedictatesofKDB680106D01v03. Remark：TheEUT’stestpositionA,B,C,DandEisvalidfortheEandHfieldmeasurements. 5EquipmentApprovalConsiderations TheEUTdoescomplywithKDB680106D01asfollowtable. RequirementsofKDB680106D01Yes/NoDescription Powertransferfrequencyislessthan1MHzYes Thedeviceoperateinthefrequencyrange 115KHz~205KHz Outputpowerfromeachprimarycoilisless than15watts Yes Themaximumoutputpowerforeachprimary coilis10W. Thesystemmayconsistofmorethanone sourceprimarycoils,chargingoneormore clients.Ifmorethanoneprimarycoilis present,thecoilpairsmaybepoweredonat thesametime. Yes Thetransfersystemincludesonlyone primarycoils. Clientdeviceisplaceddirectlyincontactwith thetransmitter. Yes Clientdeviceisplaceddirectlyincontactwith thetransmitter. Mobileexposureconditionsonly(portable exposureconditionsarenotcoveredbythis exclusion). YesMobileexposureconditionsonly TheaggregateH-fieldstrengthsanywhereat orbeyond15cmsurroundingthedevice,and 20cmawayfromthesurfacefromallcoilsthat bydesigncansimultaneouslytransmit,and whilethosecoilsaresimultaneouslyenergized, aredemonstratedtobelessthan50%ofthe applicableMPElimit. Yes TheEUTH-fieldstrengthsat15cm surroundingthedeviceand20cmabovethe topsurfacefromallsimultaneoustransmitting coilsaredemonstratedtobelessthan50%of theMPElimit. FCCID:2A6AY-LK57C Page3of4 6Descriptionofthetestmode Equipmentundertestwasoperatedduringthemeasurementunderthefollowingconditions: Chargingandcommunicationmode TestModes: Mode1AC/DCAdapter(12V/2A)+EUT+BatteryLoad(BatteryStatus:<1%) Record Mode2AC/DCAdapter(12V/2A)+EUT+BatteryLoad(BatteryStatus:<50%) Pre-tested Mode3AC/DCAdapter(12V/2A)+EUT+BatteryLoad(BatteryStatus:100%) Pre-tested Mode4AC/DCAdapter(12V/1.5A)+EUT+BatteryLoad(BatteryStatus:<1%) Pre-tested Mode5AC/DCAdapter(12V/1.5A)+EUT+BatteryLoad(BatteryStatus:<50%) Pre-tested Mode6AC/DCAdapter(12V/1.5A)+EUT+BatteryLoad(BatteryStatus:100%) Pre-tested Note:Alltestmodeswerepre-tested,butweonlyrecordedtheworstcaseinthisreport. 7DescriptionofSupportUnits Followauxiliaryequipment(s)testwithEUTthatprovidedbythemanufacturerorlaboratoryislistedasfollow: DescriptionManufacturerModelTechnicalParametersCertificate Provided by Adapter/GS-555 Input:100-240V~,50/60Hz,0.6A Output:DC5V2A/9V1.67A/12V 1.5A/2A CE/FCClaboratory SmartphoneHUAWEIMate40Max50WCE/FCClaboratory 8TestInstrumentslist TestEquipmentManufacturerModelNo.SN. Cal.Date (mm-dd-yy) Cal.Duedate (mm-dd-yy) ExposureLevelTesterNardaELT-400N-02312021/11/22022/11/01 Magneticfieldprobe 100cm 2 NardaELTprobe100cm 2 M06752021/11/22022/11/01 9 TestResult H-FieldStrengthat15cmfromtheedgessurroundingtheEUTand15cmfromthetopsurfaceoftheEUT Charging Battery Level Unit Frequency Range (MHz) MeasuredH-FieldStrengthValues(A/m)FCC H-Field Strength 50% Limits (A/m) FCC H-Field Strength Limits (A/m) Test Position A Test Position B Test Position C Test Position D Test Position E 1%uT0.1270.2990.2950.2860.2910.297---- 1%A/m0.1270.2390.2360.2290.2330.2380.8141.63 50%uT0.1270.2560.2510.2480.2430.291---- 50%A/m0.1270.2050.2010.1980.1940.2330.8151.63 99%uT0.1270.1670.1690.1540.1580.163---- 99%A/m0.1270.1340.1350.1230.1260.1300.8151.63 Note:A/m=uT/1.25 FCCID:2A6AY-LK57C Page4of4 E-FieldStrengthat15cmfromtheedgessurroundingtheEUTand15cmfromthetopsurfaceoftheEUT Charging Battery Level Unit Frequency Range (MHz) MeasuredE-FieldStrengthValues(V/m)FCC E-Field Strength 50% Limits (V/m) FCC E-Field Strength Limits (V/m) Test Position A Test Position B Test Position C Test Position D Test Position E 1%V/m0.12790.17888.97286.25887.76689.575307.0614.0 50%V/m0.12777.21075.70274.79773.28987.766307.0614.0 99%V/m0.12750.36750.97046.44647.65349.161307.0614.0 Note:V/m=A/m*377 H-FieldStrengthat20cmfromthetopsurfaceoftheEUT Charging Battery Level Unit Frequency Range (MHz) MeasuredH-FieldStrengthValues (A/m) FCCH-Field Strength50% Limits(A/m) FCCH-Field Strength Limits(A/m) TestPositionE 1%uT0.1270.128---- 1%A/m0.1270.1020.8151.63 50%uT0.1270.124---- 50%A/m0.1270.0990.8151.63 99%uT0.1270.115---- 99%A/m0.1270.0920.8151.63 E-FieldStrengthat20cmfromthetopsurfaceoftheEUT Charging Battery Level Unit Frequency Range (MHz) MeasuredE-FieldStrengthValues (V/m) FCCE-Field Strength50% Limits(V/m) FCCE-Field StrengthLimits (V/m) TestPositionE 1%V/m0.12738.454307.0614.0 50%V/m0.12737.323307.0614.0 99%V/m0.12734.684307.0614.0 10Conclusion Aminimumsafetydistanceof20cmtotheantennaisrequiredwhenthedeviceischargingaSmartphone formobileexposure.Thedetectedemissionsarebelowthelimitationsaccording…

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ShenzhenCTATestingTechnologyCo.,Ltd. Room106,Building1,YibaolaiIndustrialPark,QiaotouCommunity,Fuhai Street,Bao’anDistrict,Shenzhen,China ShenzhenCTATestingTechnologyCo.,Ltd. Room106,Building1,YibaolaiIndustrialPark,QiaotouCommunity,FuhaiStreet,Bao’anDistrict,Shenzhen,China Tel:+86-75523225875E-mail:[email protected]:http://www.cta-test.cn FCCPART15SUBPARTCTESTREPORT ReportReferenceNo. ....................... : FCCID. ................................................ : CTA22040800101 2A6AY-LK57C Compiledby (position+printedname+signature)..: FileadministratorsKevinLiu Supervisedby (position+printedname+signature) .. : ProjectEngineerKevinLiu Approvedby (position+printedname+signature) .. : RFManagerEricWang Dateofissue ......................................... :Apr.28,2022 RepresentativeLaboratoryName . :ShenzhenCTATestingTechnologyCo.,Ltd. Address ................................................. : Room106,Building1,YibaolaiIndustrialPark,QiaotouCommunity, FuhaiStreet,Bao‘anDistrict,Shenzhen,China Applicant’sname...............................: SHENZHENLKTECHNOLOGYCO.,LTD Address ................................................. : Room201,2ndfloor,BuildingA,No.21FurongRoad,Gushu, xixiangSub-district,Baoandistrict,Shenzhen,China Testspecification..............................: Standard................................................: FCCRulesandRegulationsPart15SubpartC ANSIC63.10:2013 ShenzhenCTATestingTechnologyCo.,Ltd.Allrightsreserved. Thispublicationmaybereproducedinwholeorinpartfornon-commercialpurpsesaslongasthe ShenzhenCTATestingTechnologyCo.,Ltd.isacknowledgedascopyrightownerandsourceofthe material.ShenzhenCTATestingTechnologyCo.,Ltd.takesnoresponsibilityforandwillnotassume liabilityfordamagesresultingfromthereader'sinterpretationofthereproducedmaterialduetoits placementandcontext. Testitemdescription........................: WirelessChargingpad TradeMark............................................:N/A Manufacturer.........................................: SHENZHENLKTECHNOLOGYCO.,LTD Model/Typereference ......................... :LK57C ListedModels......................................: LK52B,LK52C,LK52W,LK55C,LK55W,LK55G,LK55B,LK56, LK58C,LK59,LK60B,LK60W,LK61,LK62,LK63,LK65,LK66, LK68,LK69,LK70,ENBO,FOTOJOJO,MUGGO ModulationType..................................:ASK OperationFrequency..........................:From115KHz~205KHz Rating.....................................................: Input:DC12V/1.5A/2AFromExternalcircuit WirelessCharging:5W/10W Result.....................................................:PASS ReportNo.:CTA22040800101Page 2 of 23 ShenzhenCTATestingTechnologyCo.,Ltd. Room106,Building1,YibaolaiIndustrialPark,QiaotouCommunity,FuhaiStreet,Bao’anDistrict,Shenzhen,China Tel:+86-75523225875E-mail:[email protected]:http://www.cta-test.cn TESTREPORT EquipmentunderTest: WirelessChargingpad Model/Type: LK57C ListedModels: LK52B,LK52C,LK52W,LK55C,LK55W,LK55G,LK55B,LK56, LK58C,LK59,LK60B,LK60W,LK61,LK62,LK63,LK65,LK66,LK68, LK69,LK70,ENBO,FOTOJOJO,MUGGO ModelDeclaration: PCBboard,structureandinternalofthesemodel(s)arethesame, Sonoadditionalmodelsweretested. Applicant : SHENZHENLKTECHNOLOGYCO.,LTD Address: Room201,2ndfloor,BuildingA,No.21FurongRoad,Gushu,xixiang Sub-district,Baoandistrict,Shenzhen,China Manufacturer : SHENZHENLKTECHNOLOGYCO.,LTD Address: Room201,2ndfloor,BuildingA,No.21FurongRoad,Gushu,xixiang Sub-district,Baoandistrict,Shenzhen,China TestResult:PASS Thetestreportmerelycorrespondstothetestsample. Itisnotpermittedtocopyextractsofthesetestresultwithoutthewrittenpermissionofthetest laboratory. ReportNo.:CTA22040800101Page 3 of 23 ShenzhenCTATestingTechnologyCo.,Ltd. Room106,Building1,YibaolaiIndustrialPark,QiaotouCommunity,FuhaiStreet,Bao’anDistrict,Shenzhen,China Tel:+86-75523225875E-mail:[email protected]:http://www.cta-test.cn Contents 1TESTSTANDARDS...............................................................................................................................4 2SUMMARY....................................................................................................................................................5 2.1GeneralRemarks5 2.2ProductDescription5 2.3Descriptionofthetestmode5 2.4SpecialAccessories5 2.5Modifications5 3TESTENVIRONMENT.........................................................................................................................6 3.1Addressofthetestlaboratory6 3.2TestFacility6 3.3Environmentalconditions6 3.4Summaryofmeasurementresults7 3.5Statementofthemeasurementuncertainty7 3.6EquipmentsUsedduringtheTest8 4TESTCONDITIONSANDRESULTS.......................................................................................9 4.1ACPowerConductedEmission9 4.2RadiatedEmission12 4.3The20dBbandwidth16 4.4AntennaRequirement17 5TESTSETUPPHOTOSOFTHEEUT..................................................................................18 6PHOTOSOFTHEEUT....................................................................................................................19 ReportNo.:CTA22040800101Page 4 of 23 ShenzhenCTATestingTechnologyCo.,Ltd. Room106,Building1,YibaolaiIndustrialPark,QiaotouCommunity,FuhaiStreet,Bao’anDistrict,Shenzhen,China Tel:+86-75523225875E-mail:[email protected]:http://www.cta-test.cn 1TESTSTANDARDS Thetestswereperformedaccordingtofollowingstandards: FCCRulesandRegulationsPart15SubpartC(Section15.207):Conductedlimits. FCCRulesandRegulationsPart15SubpartC(Section15.209):Radiatedemissionlimits;general requirements. ANSIC63.10:2013:AmericanNationalStandardforTestingUnlicensedWirelessDevices ReportNo.:CTA22040800101Page 5 of 23 ShenzhenCTATestingTechnologyCo.,Ltd. Room106,Building1,YibaolaiIndustrialPark,QiaotouCommunity,FuhaiStreet,Bao’anDistrict,Shenzhen,China Tel:+86-75523225875E-mail:[email protected]:http://www.cta-test.cn 2SUMMARY 2.1GeneralRemarks Dateofreceiptoftestsample:Mar.29,2022 Testingcommencedon:Mar.29,2022 Testingconcludedon:Apr.08,2022 2.2ProductDescription ProductName:WirelessChargingp…

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FCCID:2A6AY-LK57C FCCID:2A6AY-LK57C RFExposureEvaluation Themeasurementprobewasplacedattestdistance(15cmfromallsidesand20cm fromthetop)whichisbetweentheedgeofthechargerandthegeometriccenterof probe. TestSet-upPhoto