2A48S-S4iWatch wireless charger

FCC WARNING This device complies with part 15 of the FCC Rules. Operation is subject to the follow ing two conditions : (1) this device may not cause harmful interference, and (2) this device must accept any interference received, inc luding interference that may cause undesired operation. Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. NOTE: 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 residentia l 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 televis ion 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 technic ian for help. To maintain compliance with FCC’s RF Exposure guidelines, This equipment should be insta lled and operated with minimum distance between 20cm the radiator your body: Use only the supplied antenna.

ShenzhenshiWeiduliTechnologyCo.,Ltd. 2.911(d)(5)(i)EquipmentTypeAttestationv1.2 Section2.911(d)(5)(i)Certification–EquipmentType Companyname:ShenzhenshiWeiduliTechnologyCo.,Ltd. Address:4hFloor,Building4,DejinIndustrialZone,No.40,Fuyuan1stRoad,HepingCommunityFuhai Street,Bao'anDistrict,ShenzhenChina ProductName:iWatchwirelesscharger FCCID:2A48S-S4 Model(s):S4 S1,S2,S3,S5-S99 2.911(d)(5)(i)EquipmentType We,ShenzhenshiWeiduliTechnologyCo.,Ltd.(“theapplicant”)certifythattheequipmentforwhich authorizationissoughtthroughcertificationisnot:  Prohibitedfromreceivinganequipmentauthorizationpursuantto§2.903;oftheFCCrules.  Identifiedasanequipmenttypeinthe“CoveredList” NOTE1 Yourssincerely, Name:GuanghuiHuangDate:2023.06.28 TitleandCompanyname:CEO/ShenzhenshiWeiduliTechnologyCo.,Ltd. NOTE1 “CoveredList”;istheListofEquipmentandServicesCoveredBySection2ofTheSecureNetworksAct,availableat https://www.fcc.gov/supplychain/coveredlist References; 1)986446D01CoveredEquipmentv01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2)FederalRegisterdocument2022-28263publishedon02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

ShenzhenshiWeiduliTechnologyCo.,Ltd. 2.911(d)(5)(ii)ApplicantAttestationv1.3 Section2.911(d)(5)(ii)Certification–Applicant(CoveredList) Companyname:ShenzhenshiWeiduliTechnologyCo.,Ltd. Address:4hFloor,Building4,DejinIndustrialZone,No.40,Fuyuan1stRoad,HepingCommunityFuhai Street,Bao'anDistrict,ShenzhenChina ProductName:iWatchwirelesscharger FCCID:2A48S-S4 Model(s):S4 S1,S2,S3,S5-S99 2.911(d)(5)(ii)Applicantfiling We,ShenzhenshiWeiduliTechnologyCo.,Ltd.(“theapplicant”)certifythat,asofthedateofthefiling oftheapplication,theapplicantisnotidentified NOTE1 onthe“CoveredList” NOTE2 ,established pursuantto§1.50002ofthischapter,asanentityproducingcoveredcommunicationsequipment. Yourssincerely, Name:GuanghuiHuangDate:2023.06.28 TitleandCompanyname:CEO/ShenzhenshiWeiduliTechnologyCo.,Ltd. NOTE1 Deleteoptionnotapplicabletothisapplication. NOTE2 “CoveredList”;istheListofEquipmentandServicesCoveredBySection2ofTheSecureNetworksAct,availableat https://www.fcc.gov/supplychain/coveredlist References; 1)986446D01CoveredEquipmentv01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2)FederalRegisterdocument2022-28263publishedon02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

ShenzhenshiWeiduliTechnologyCo.,Ltd. 2.911(d)(7)USAAgentv1.4 Section2.911(d)(7)USAAgentforServiceofProcess Companyname:ShenzhenshiWeiduliTechnologyCo.,Ltd. Address:4hFloor,Building4,DejinIndustrialZone,No.40,Fuyuan1stRoad,Heping CommunityFuhaiStreet,Bao'anDistrict,ShenzhenChina ProductName:iWatchwirelesscharger FCCID:2A48S-S4 Model(s):S4 S1,S2,S3,S5-S99 2.911(d)(7)USADesignatedAgentforServiceofProcess We,ShenzhenshiWeiduliTechnologyCo.,Ltd.(“theapplicant”)designate[Stone TradingLimited] NOTE1 forthepurposeofacceptingserviceofprocessonbehalfofthe applicant. Applicantconsent:Weacknowledgeourconsenttoacceptserviceofprocessinthe UnitedStatesformattersrelatedtotheapplicableequipment,andatthephysicalU.S. addressandemailaddressofthedesignatedagentandacknowledgeour acceptanceofourobligationtomaintainanagentforserviceofprocessintheUnited Statesfornolessthanoneyearaftereitherwethegranteehavepermanently terminatedallmarketingandimportationoftheapplicableequipmentwithintheU.S., orattheconclusionofanyCommission-relatedadministrativeorjudicialproceeding involvingtheequipment,whicheverislater. Agentobligation:Weacknowledgeourobligationtoacceptserviceofprocessinthe UnitedStatesformattersrelatedtotheapplicableequipmentatourphysicalU.S. addressandemailaddressfornolessthanoneyearaftereitherthegranteehas permanentlyterminatedallmarketingandimportationoftheapplicableequipment withintheU.S.,orattheconclusionofanyCommission-relatedadministrativeor judicialproceedinginvolvingtheequipment,whicheverislater. USAAgent Companyname:StoneTradingLimited USAAddress:6547NAcademyBlvd #2266,ColoradoSprings,CO80918,United States FRNNumber：0033401936 ContactName:DongmeiFang TelephoneNo:+12134573118 Email:[email protected] Applicant Companyname:ShenzhenshiWeiduli TechnologyCo.,Ltd. Address:4hFloor,Building4,Dejin IndustrialZone,No.40,Fuyuan1st Road,HepingCommunityFuhaiStreet, Bao'anDistrict,ShenzhenChina FCCGranteeCode:2A48S ContactName:GuanghuiHuang TelephoneNo:0755-89486984 Email:[email protected] Signature: Title:manager Signature: Title:CEO Date:2023.06.28Date:2023.06.28 ShenzhenshiWeiduliTechnologyCo.,Ltd. 2.911(d)(7)USAAgentv1.4 NOTE1:AnapplicantlocatedintheUnitedStatesmaydesignateitselfastheagentforservice ofprocess. Reference;FederalRegisterdocument2022-28263publishedon02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-nation al-security-threats-to-the-communications-supply-chain-through-the

ShenzhenshiWeiduliTechnologyCo.,Ltd. AgentAuthorization Company:ShenzhenshiWeiduliTechnologyCo.,Ltd. Address:4hFloor,Building4,DejinIndustrialZone,No.40,Fuyuan1stRoad,Heping CommunityFuhaiStreet,Bao'anDistrict,ShenzhenChina ProductName:iWatchwirelesscharger ModelNumber(s):S4 S1,S2,S3,S5-S99 ProductDescription:iWatchwirelesscharger WeauthorizeMiCOMLabsInc.,575BoulderCourt,Pleasanton,California94566,USA, toactonourbehalfonallmattersconcerningthecertificationofabovenamed equipment. WedeclarethatMiCOMLabsInc.isallowedtoforwardallinformationrelatedtothe approvalandcertificationofequipmenttotheregulatoryagenciesasrequiredandto discussanyissuesconcerningtheapprovalapplication.Anyandallactscarriedoutby MiCOMLabsonourbehalfshallhavethesameeffectasactsofourown. Signature:Date:2023.06.28 Name:GuanghuiHuang Title:CEO Company:ShenzhenshiWeiduliTechnologyCo.,Ltd.

ShenzhenshiWeiduliTechnologyCo.,Ltd. OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USA Date:2023.06.28 Subject;RequestforConfidentiality FCCID:2A48S-S4 ToWhomItMayConcern, PursuanttotheprovisionsoftheCommission’srulesTitle47Sections§0.457and§0.459,we arerequestingtheCommissiontowithholdthefollowingattachment(s)asconfidential documentsfrompublicdisclosureindefinitely. Thesedocumentscontaindetailedsystemandequipmentdescriptionsandareconsideredas proprietaryinformationinoperationoftheequipment.Thepublicdisclosureofthesedocuments mightbeharmfultoourcompanyandwouldgivecompetitorsanunfairadvantageinthemarket. SchematicDiagram BlockDiagram PartsList OperationalDescription Tune-upProcedure 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:GuanghuiHuang Title:CEO

ShenzhenshiWeiduliTechnologyCo.,Ltd. ModelDifference Productdescription:iWatchwirelesscharger Modelname:S4S1,S2,S3,S5-S99 TradeName:N/A FCCID:2A48S-S4 AllthemodelarethesamecircuitandRFmodule,onlyformodelname. Client’ssignature: Client’sname/title:GuanghuiHuang/CEO Contactinformation/address:0755-89486984/4hFloor,Building4,DejinIndustrial Zone,No.40,Fuyuan1stRoad,HepingCommunityFuhaiStreet,Bao'anDistrict, ShenzhenChina

EUTPHOTO(ExternalPhotos) iWatchwirelesscharger S4 ※※※※※ENDOFREPORT※※※※※

Labelandlabellocation 3cm 1cm FCCID:2A48S-S4

EUTPHOTO(InternalPhotos) iWatchwirelesscharger S4 Coil ※※※※※ENDOFREPORT※※※※※

FCCID:2A48S-S4 ProductName: iWatchwirelesscharger ProductModelNo.: S4 TestAuxiliary:AC/DCAdapter,iWatch TestAuxiliaryModelNo.:ZKT-00,ZKT-01 TransmittingmodeKeeptheEUTincontinuouslywirelesschargingmode Powersupply:Input:DC5V1A Outputpower:2.5W TestDescription:iWatchBattery>98%,=50%and<1%aretested,andtheworstis<1%. TestModes: Mode1AC/DCAdapter(5V/1A)+EUT+iWatchRecord N/A RFExposureEvaluation 1MeasuringStandard 1.1KDB680106RFExposureWirelessChargingAppsv03r01 1.2MEASUREMENTUNCERTAINTY Thereporteduncertaintyofmeasurementy±U,whereexpendeduncertaintyUisbasedonastandard uncertaintymultipliedbyacoveragefactorofk=2,providingalevelofconfidenceofapproximately95%. No.ItemUncertainly 1 H-filed ±0.93dB 2 E-filed ±0.51dB 2Requirements Accordingtotheitem5ofKDB680106v03r01: Inductivewirelesspowertransferapplicationsthatmeetallofthefollowingrequirementsareexcludedfrom submittinganRFexposureevaluation. (1)Powertransferfrequencyislessthan1MHz. Yes.Thedeviceoperatesinthefrequency115KHz-205KHz; (2)Outputpowerfromeachprimarycoilislessthanorequalto15watts. Yes.ThemaximumoutputpoweroftheprimarycoilisMax2.5W; (3)Thesystemmayconsistofmorethanonesourceprimarycoils,chargingoneormoreclients.Ifmorethan oneprimarycoilispresent,thecoilpairsmaybepoweredonatthesametime. Yes.Thetransfersystemincludingachargingsystemwithonlysingleprimarycoilsistodetectandallow onlybetweenindividualofcoils; (4)Clientdeviceisplaceddirectlyincontactwiththetransmitter. Yes.Clientdeviceisplaceddirectlyincontactwiththetransmitter (5)Mobileexposureconditionsonly(portableexposureconditionsarenotcoveredbythisexclusion). Yes.TheEUTdoesnothaveportableexposureconditions. (6)TheaggregateH-fieldstrengthsanywhereatorbeyond15cmsurroundingthedevice,and20cmaway fromthesurfacefromallcoilsthatbydesigncansimultaneouslytransmit,andwhilethosecoilsare simultaneouslyenergized,aredemonstratedtobelessthan50%oftheapplicableMPElimit. Yes.Meettherequirement. Limits Thecriterialistedinthefollowingtableshallbeusedtoevaluatetheenvironmentimpactofhumanexposure toradiofrequency(RF)radiationasspecifiedin1.1307(b) LimitsforMaximumPermissibleExposure(MPE) 3TestSetup 4TestProcedure 1)TheRFexposuretestwasperformedinanechoicchamber. 2)Themeasurementprobewasplacedattestdistance(15cmfromallsidesand20cmfromthetop)whichis betweentheedgeofthechargerandthegeometriccenterofprobe. 3)Thehighestemissionlevelwasrecordedandcomparedwithlimitassoonasmeasurementofeachpoints (A,B,C,D,E)werecompleted. 4)TheEUTwasmeasuredaccordingtothedictatesofKDB680106v03r01. Remark：TheEUT’stestpositionA,B,C,DandEisvalidfortheEandHfieldmeasurements. 5TestInstrumentslist TestEquipmentManufacturerModelNo.SN. Cal.Date (mm-dd-yy) Cal.Duedate (mm-dd-yy) ExposureLevelTesterNardaELT-400N-0231June.262023June.252024 Magneticfieldprobe 100cm 2 NardaELTprobe100cm 2 M0675June.262023June.252024 6TestResult H-FiledStrengthat15cmfromtheedgessurroundingtheEUT(uT) FrequencyRange (MHz) Test PositionA Test PositionB Test PositionC Test PositionD Test PositionE 0.115-0.2050.480.450.500.460.49 H-FiledStrengthat15cmfromtheedgessurroundingtheEUT(A/m) FrequencyRange (MHz) Test PositionA Test PositionB Test PositionC Test PositionD Test PositionE Limits (A/m) 0.115-0.2050.380.360.400.370.391.63 Remark:A/m=uT/1.25. 7TestSet-upPhoto

深圳市三盛创电子科技有限公司 承認書 客戶： CUSTOMER: 深圳市星之豪科技有限公司 客戶料號： CUSTP/N: 三盛创料號： FINEP/N: 手表软磁线圈 7.8UH0.08*24P-14TS-30mm 産品型號： DESC: 日期： DATE: 2023.06.27 版本： Version: A.0 擬制 PREPAREDBY 審核 CHECKEDBY 批准 APPROVEDBY 客戶承認 CUSTOMERAPPROVE 郭柳安帅印安帅印 深圳市三盛创电子科技有限公司 工廠地址：深圳市光明区玉塘街道玉律社区大洋一路 19 号 B 栋 201 版本變更履歷 VersionChangeHistory 版本 Rev. 變更前 BeforeChange 變更後 AfterChange 更改日期 ChangeDate 批准 ApprovedBy A.0 新发行 ----2023.06.27安帅印 SPECIFICATION 産品型號： DESC 发射线圈14.2*21.5-7.8UH 版本 Rev：A.0 客戶CUST: XXX 客户料号CUSTP/N: 一、尺寸DIMENSION:(mm) 二、原理图SCHEMATICDIAGRAM: A 25±1 B 23.6±0.5 C 21.5±0.5 D 14.2±0.5 E 7.8±0.1 F 3±1 H 30±1.5 注： 1.交叉出线; 2.线圈贴圆形软磁片两端带 缺口，磁片尺寸25±1mm,内孔 7.8mm,厚度为2.6±0.2mm。 3.磁铁尺寸 7.8mm*2.5mm,n52强磁3700 高斯 三、绕线参数WindingSpecification: 序号 NO. 端子 TERMINAL 线径 WIRE 圈数 Turns 绕线方向 WindingDirection 1SF漆包线0.08*24P14TsCCW 四、电气特性ELECTRICALCHARACTERISTICS: 温度TEMPERATURE:25±10°C,湿度RELATIVEHUMIDITY:65±20% 序号 NO. 项目 ITEM 端子 TERMINAL 标准 SPECIFICATION 测试条件 TESTFREQUENCY 测试仪器 TESTEQUIPMENTS 1IND.S-F5.1uH±10%单独线圈100KHz/1.0VLCZMETER1062B 2IND.S-F7.8uH±10%单独线圈100KHz/1.0VLCZMETER1062B 3DCRS-F≤32mΩ100KHz/1.0VLCZMETER502B 4QS-F≤36100KHz/1.0VLCZMETER502B 擬制 / 日期 PREPAREDBY/DATE 審核 / 日期 CHECKEDBY/DATE 郭柳 203.06.27 安帅印2023.06.27

ProjectNo.:ZKT-2306134455E Page 1 of 23 FCCTESTREPORT FCCID:2A48S-S4 ReportNumber. .................................. :ZKT-2306134455E DateofTest ....................................................... : Jun.13,2023toJun.21,2023 Dateofissue.........................................: Jun.21,2023 Totalnumberofpages..........................23 TestResult .......................................... : PASS TestingLaboratory............................: ShenzhenZKTTechnologyCo.,Ltd. Address ............................................... : 1/F,No.101,BuildingB,No.6,TangweiCommunityIndustrial Avenue,FuhaiStreet,Bao'anDistrict,Shenzhen,China Applicant'sname ............................. : ShenzhenshiWeiduliTechnologyCo.,Ltd. Address...............................................: 4hFloor,Building4,DejinIndustrialZone,No.40,Fuyuan1st RoadHepingCommunityFuhaiStreet,BaoanDistrict ShenzhenChina Manufacturer'sname......................: ShenzhenshiWeiduliTechnologyCo.,Ltd. Address ............................................... : 4hFloor,Building4,DejinIndustrialZone,No.40,Fuyuan1st RoadHepingCommunityFuhaiStreet,BaoanDistrict ShenzhenChina Testspecification: Standard ................................................ :FCCCFRTitle47Part15SubpartC Testprocedure.....................................: / Non-standardtestmethod ................ :N/A TestReportFormNo. ....................... : TRF-EL-106_V0 TestReportForm(s)Originator.....: ZKTTesting MasterTRF........................................: Dated:2020-01-06 ThisdevicedescribedabovehasbeentestedbyZKT,andthetestresultsshowthattheequipmentunder test(EUT)isincompliancewiththeFCCrequirements.Anditisapplicableonlytothetestedsample identifiedinthereport. Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofZKT,thisdocumentmay bealteredorrevisedbyZKT,personalonly,andshallbenotedintherevisionofthedocument. Productname.....................................:iWatchwirelesscharger Trademark ........................................... : N/A Model/Typereference.........................:S4 S1,S2,S3,S5-S99 Ratings .................................................. : Input:DC5V1A Outputpower:2.5W ProjectNo.:ZKT-2306134455E Page 2 of 23 Testingprocedureandtestinglocation: TestingLaboratory.......................................:ShenzhenZKTTechnologyCo.,Ltd. Address............................................................:1/F,No.101,BuildingB,No.6,TangweiCommunity IndustrialAvenue,FuhaiStreet,Bao'anDistrict, Shenzhen,China TomZou Testedby(name+signature).......................: JacksonFang Reviewer(name+signature).......................: LakeXie Approved(name+signature) ....................... : ProjectNo.:ZKT-2306134455E Page 3 of 23 TABLEOFCONTENTS 1.VERSION..................................................................................................................................4 2.TESTSUMMARY...................................................................................................................5 2.1TESTFACILITY...............................................................................................................................6 2.2MEASUREMENTUNCERTAINTY...............................................................................................6 3.1GENERALDESCRIPTIONOFEUT............................................................................................7 3.2Testmode.........................................................................................................................................7 3.3BlockDiagramofEUTConfiguration...........................................................................................8 3.4TestConditions................................................................................................................................8 3.5DescriptionOfSupportUnits(ConductedMode).......................................................................8 3.6EQUIPMENTSLISTFORALLTESTITEMS.............................................................................9 4.CONDUCTEDEMISSIONTEST........................................................................................11 4.1CONDUCTEDEMISSIONMEASUREMENT...........................................................................11 4.1.1POWERLINECONDUCTEDEMISSIONLimits..................................................................11 4.1.2TESTPROCEDURE..................................................................................................................11 4.1.3DEVIATIONFROMTESTSTANDARD..................................................................................11 4.1.4TESTSETUP..............................................................................................................................12 4.1.5EUTOPERATINGCONDITIONS............................................................................................12 4.1.6TestResult..................................................................................................................................13 5.RADIATEDEMISSIONMEASUREMENT.......................................................................15 5.1RadiatedEmissionLimits.............................................................................................................15 5.2AnechoicChamberTestSetupDiagram...................................................................................16 5.3TestProcedure..............................................................................................................................16 5.4DEVIATIONFROMTESTSTANDARD.....................................................................................16 5.5TestResult......................................................................................................................................17 6.BANDWIDTHTEST.............................................................................................................20 7.ANTENNAREQUIREMENT...............................................…

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

EUTTESTPHOTO iWatchwirelesscharger S4