2BT5R-CX1Magnetic Power Bank

CX1

ShenzhenTangxinStormTechnologyCo.,Ltd Address：No.1SouthChinaAvenue,HehuaCommunity,PInghuStreet,LonggangDistrict, ShenzhenCity,China Date:2026-01-12 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Ref:AttestationStatementsPart2.911(d)(7)Filing SUBJECT:FCCApplicationforFCCID:2BT5R-CX1 FRN:0037839784 (“ShenzhenTangxinStormTechnologyCo.,Ltd”)certifiesthat,asofthedateofthefilingof theapplication,GOLDENVICTORYINTERNATIONALTRADINGCOLTDisourdesignated U.S.agentforserviceofprocessfortheabovereferencedFCCID.(“ShenzhenTangxin StormTechnologyCo.,Ltd”)acceptstomaintainanagentfornolessthanoneyearafterthe granteehasterminatedallmarketingandimportationortheconclusionofanyCommission- relatedproceedinginvolvingtheequipment. GOLDENVICTORYINTERNATIONALTRADINGCOLTDaccepts,asofthedateofthefiling oftheapplication,theobligationofthedesignatedU.S.agentforserviceofprocessforthe abovereferencedFCCID. DesignatedU.S.AgentInformation: Name:GOLDENVICTORYINTERNATIONALTRADINGCOLTD Address:11016THSTREETSUITE1400DENVER,CO80202UnitedStates FRN：0036377570 ContactPerson:LeonHowar Tel.:(337)255-0461 Email:[email protected] Sincerely, Signedonbehalfof（ShenzhenTangxin StormTechnologyCo.,Ltd） SignedonbehalfofGOLDENVICTORY INTERNATIONALTRADINGCOLTD Name:LuxiaoJeongName:LeonHowar Title:PurchaseTitle:Manager Date:2026-01-12Date:2026-01-12

Rev1/26/2023 (ShenzhenTangxinStormTechnologyCo.,Ltd) FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:2026-01-12 Ref:AttestationStatementsPart2.911(d)(5)(i)Filing FCCID:2BT5R-CX1 (“ShenzhenTangxinStormTechnologyCo.,Ltd”)certifiesthattheequipmentforwhichauthorizationis soughtisnot“covered”equipmentprohibitedfromreceivinganequipmentauthorizationpursuantto section2.903oftheFCCrules. (“ShenzhenTangxinStormTechnologyCo.,Ltd”)certifiesthattheequipmentforwhichauthorizationis soughtdoesnotincludecybersecurityoranti-virussoftwareproducedorprovidedbyKasperskyLab,Inc. oranyofitssuccessorsandassignees,includingequipmentwithintegratedKasperskyLab,Inc.(oranyof itssuccessorsandassignees)cybersecurityoranti-virussoftwarepursuanttoDA-24-886andKDB 986446D01CoveredEquipmentGuidancesectionB(2a). Deviceisinherentlycompliantbasedonhardwarelimitationsorsoftwarecontrols. or ASoftwareBillofMaterials(SBOM)isprovidedtotheTCBforreview,and Theend-userorthirdpartiescannotinstalladditionalsoftwareonthisdevice. Sincerely, (Applicantsignature): (Applicantprintedname):LuxiaoJeong Rev1/26/2023 (ShenzhenTangxinStormTechnologyCo.,Ltd) FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:2026-01-12 Ref:AttestationStatementsPart2.911(d)(5)(ii)Filing FCCID:2BT5R-CX1 (“ShenzhenTangxinStormTechnologyCo.,Ltd”)certifiesthat,asofthedateofthefilingofthe application,ShenzhenTangxinStormTechnologyCo.,LtdisnotidentifiedontheCoveredList(asa specificallynamedentityoranyofitssubsidiariesoraffiliates)asanentityproducing“covered” equipment. Sincerely, (Applicantsignature): (Applicantprintedname):LuxiaoJeong

深圳市深广电子科技有限公司 ShenzhenShenguangElectronicTechnologyCo.,LTD Address:Floor401,FactoryNo.1165,GuanhuaCommunity,GuanlanStreet,LonghuaDistrict,Shenzhen,China 客户/Client 名称/TYPEA11-43.5-0.8Singleholedoublegroovewith8innerholesinthemiddle, adhesivelinelengthattheback40MM-0.08-80P-12ts-6.5uH 产品型号 ModelNOSG-A1143.5-6.5UH 产品编号SG-A1143.5-8-040-001 Partnunberingsystey 客户料号 09.OJDXQ00069 Clientp/NO 工程编号 EnginrerNOTQE1800510003 日期/Date2025-10-9 编制/Prepared审核/Checked认可/Approved XieYanQiDuanJiaWangXieXiaoZai 客户认可回签/AuthorixedSignaturureCompanyChop 本公司工程部/ForEnginerDepartnerOnly 修改内容/RrvisedContent认可日期/APProvedDate 深圳市深广电子科技有限公司 ShenzhenShenguangElectronicTechnologyCo.,LTD Address:Floor401,FactoryNo.1165,GuanhuaCommunity,GuanlanStreet,LonghuaDistrict,Shenzhen,China 工程/Enginrer认可/QCAPProved认可日期/APProved 一、线圈工艺/WindingProcese: NOwindingwiregauge number ofturns Winding direction Remarks 1N12UEW-B-0.08*80P12TSCCW 2 二．电气性能/FEATURES: 1.测试条件（Testconditions）：25°C,65%RH@100KHz/1V 1.1电感量（Inductance） 1.11L0A（Individualcoil）=3.8uH±20% 1.12L0A(Coil+MagneticDisc)=6.5uH±10% 1.2Q值=30MIN 1.3直流电阻（DCR）：65mΩMAX 1.4工作温度(OperatingTemperature)：-25°C~85°C 2.测试仪器(Testinstrument)：L:1068+1310;DCR:502BC;SIZE:Callipers 深圳市深广电子科技有限公司 ShenzhenShenguangElectronicTechnologyCo.,LTD Address:Floor401,FactoryNo.1165,GuanhuaCommunity,GuanlanStreet,LonghuaDistrict,Shenzhen,China 3.材料清单/BillofMaterials NOprojectmaterial 1WIRE￠ 0.08-80P2UEW 2FERRITE43.5*8*0.8LDoubleslotferritehardmagnet 3GLUEWhiteglue/yellowglue 4SOLDERXCD-907B 5AdhesiveNonporousdouble-sidedadhesivetape 6 Hightemperatureadhesive 6MM(ref)High-temperaturetape 7magnet/ 8 insulation / 深圳市深广电子科技有限公司 ShenzhenShenguangElectronicTechnologyCo.,LTD Address:Floor401,FactoryNo.1165,GuanhuaCommunity,GuanlanStreet,LonghuaDistrict,Shenzhen,China 三．电路图/CIRCUITDIAGRAM unit ： MM 四．外形图/OUTSIDEDIAGRA Note:Wrap6MM(ref)high-temperatureadhesivetapearoundthecoiloutletposition ABCDEITH STD 43.5±0.538.5±113.5±0.58±0.3 2-5 0.8±0.1 2.3Max 40±2 unit：MM 深圳市深广电子科技有限公司 ShenzhenShenguangElectronicTechnologyCo.,LTD Address:Floor401,FactoryNo.1165,GuanhuaCommunity,GuanlanStreet,LonghuaDistrict,Shenzhen,China 五．包装 /PACKAGE 5.3 包装以现有包装盘为参照标准，以实际出货包装为准，如有特需要求可以定制。 Thepackagingshallbebasedontheexustingpackingplateandtheactualdeliverypackage shallprevail.Ifthereisanyrequirement,wecancustomizeit. 1400 深圳市深广电子科技有限公司 ShenzhenShenguangElectronicTechnologyCo.,LTD Address:Floor401,FactoryNo.1165,GuanhuaCommunity,GuanlanStreet,LonghuaDistrict,Shenzhen,China 六、贮存和使用条件StorageandUsecondition 6.1贮存条件Storagecondition 6.1.1建议贮存条件：温度-25°C~85°C，湿度70%(Max.) Recommendedkeepingconditions:-25°C ~ 85°C,70%RH(Max.) 6.1.2贮存期限：自生产之日起六个月内 Storagelife:Withinthelimitsofsixmonthsfrombeingproduced. 6.2使用条件Usecondition 使用条件限制：温度=-25°C~85°C,湿度≤90% Useconditionlimit:T=-25°C~85°C,RH≤90%.

ShenzhenTangxinStormTechnologyCo.,Ltd Date:January12,2026 ProductModelNumber:CX1 FCCID:2BT5R-CX1 Towhomitmayconcern, Re:ProductCertificationRepresentativeAuthorizationLetter WeauthorizeQAILaboratoriesLtd.3980NorthFraserWay,BurnabyB.C. CanadaV5J5K5toactonourbehalfonallmattersconcerningtheabove namedequipment. Thisshallincludethefollowing: Testing Approvalapplicationsandprocedures WedeclarethatQAILaboratoriesLtd.isallowedtoforwardallinformation relatedtotheapprovalprojecttotheappliedcertificationbodyandtothe notificationentitiesandtodiscussanyissuesconcerningtheapproval application.AnyandallactscarriedoutbyQAILaboratoriesLtd.onour behalfshallhavethesameeffectasactsofourown. By: ContactListedonFCCWesbite Title:Purchase Email:[email protected] Telephone:18128886383 Onbehalfof:ShenzhenTangxinStormTechnologyCo.,Ltd

ShenzhenTangxinStormTechnologyCo.,Ltd OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USA Date:January14,2026 Subject;RequestforConfidentiality FCCID:2BT5R-CX1 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:LuxiaoJeong Title:Purchase

FCCID:2BT5R-CX1 EUTPHOTO(ExternalPhotos) FCCID:2BT5R-CX1 FCCID:2BT5R-CX1 FCCID:2BT5R-CX1 ※※※※※ENDOFREPORT※※※※※

26.143 FCC ID:2BT5R-CX1

FCCID:2BT5R-CX1 EUTPHOTOS(InternalPhotos) FCCID:2BT5R-CX1 Coil FCCID:2BT5R-CX1 FCCID:2BT5R-CX1 ※※※※※ENDOFREPORT※※※※※

ProjectNo.:ZHT-251229129W01-2 Page 1 of 13 RFExposureEvaluation FCCID:2BT5R-CX1 ReportNo........................:ZHT-251229129W01-2 Product............................:MagneticPowerBank Trademark.......................:/ Model(s)...........................:CX1 ModelDifference..............:/ Applicant..........................:ShenzhenTangxinStormTechnologyCo.,Ltd Address............................:No.1SouthChinaAvenue,HehuaCommunity,PInghuStreet,Longgang District,ShenzhenCity,China Manufacturer....................:ShenzhenTangxinStormTechnologyCo.,Ltd Address............................:No.1SouthChinaAvenue,HehuaCommunity,PInghuStreet,Longgang District,ShenzhenCity,China Preparedby......................:GuangdongZhonghanTestingTechnologyCo.,Ltd. Address............................:Room104/201,Building1,YibaolaiIndustrialPark,Qiaotou,Fuhai Subdistrict,Bao'anDistrict,Shenzhen,Guangdong,China DateofReceipt................:Dec.29,2025 DateofTest(s)..................:Dec.29,2025toJan.8,2026 DateofIssue....................:Jan.8,2026 TestStandard(s)..............: KDB680106D01WirelessPowerTransferv04 Intheconfigurationtested,theEUTcompliedwiththestandardsspecifiedabove. Preparedby:Reviewedby:Approvedby: KimiLu/EngineerBaretWu/DirectorLeviLee/Manager Note:Theresultsshowninthistestreportreferonlytothesample(s)testedunlessotherwisestated.Thistest reportshallnotbereproducedexceptinfull,withoutpriorwrittenapprovalofZHT.Thisdocumentmaybe alteredorrevisedbyZHT,personnelonly,andshallbenotedintherevisionofthedocument. ProjectNo.:ZHT-251229129W01-2 Page 2 of 13 TableofContentsPage 1.GENERALINFORMATION.................................................................................................3 1.1.GENERALDESCRIPTIONOFEUT.........................................................................3 1.2.TestModes...............................................................................................................4 1.3.Auxiliaryequipment...................................................................................................5 2.RFEXPOSURETEST........................................................................................................6 2.1.MeasuringStandard..................................................................................................6 2.2.Requirements............................................................................................................6 2.3.Limits........................................................................................................................6 2.4.TestSetup................................................................................................................7 2.5.TestProcedure.........................................................................................................7 2.6.MEASUREMENTUNCERTAINTY...........................................................................8 2.7.TestInstrumentslist..................................................................................................8 2.8.TestResult................................................................................................................9 2.9.TestPhotos.............................................................................................................11 ProjectNo.:ZHT-251229129W01-2 Page 3 of 13 1.GENERALINFORMATION 1.1.GENERALDESCRIPTIONOFEUT ProductName:MagneticPowerBank TestModelNo.: CX1 Hardwareversion:V1.0 Softwareversion:V1.0 OperationFrequency: Phone:110.1-205KHz,350-370KHz Earphone:110.1-205KHz Watch:320-345KHz Modulationtype:ASK AntennaType:InductiveloopcoilAntenna Antennagain:0dBi Ratings:Batterycapacity:DC3.85V/10000mAh/38.5Wh Tpye-CInput:5V3A/9V2A/12V1.5A Tvoe-CInputcable:5V2A/9V2A/12V1.5A Tpye-COutput:5V3A/9V2.22A/10V2.25A/12V1.67A(22.5W) Type-COutputcable:5V3A/9V2.22A/10V2.25A/ 12V1.67A(22.5W) LightningOutput:5V2.4A Wirelesschargingoutput:5W/7.5W/10W/15W EarphoneOutput:2.5W(max) WatchOutput:3W(max) SampleNumber:251229129YP001 Remark:Theantennagainisprovidedbythecustomer,ifthedataprovidedbythecustomerisnotaccurate, GuangdongZhonghanTestingTechnologyCo.,Ltd.doesnotassumeanyresponsibility. ProjectNo.:ZHT-251229129W01-2 Page 4 of 13 1.2.TESTMODES TestModes: Mode1ACMains+Watchchargingport(BatteryStatus:≤1%) Mode2ACMains+Watchchargingport(BatteryStatus:50%) Mode3ACMains+Watchchargingport(BatteryStatus:≥98%) Mode4Watchchargingport(BatteryStatus:≤1%) Mode5Watchchargingport(BatteryStatus:50%) Mode6Watchchargingport(BatteryStatus:≥98%) Mode7ACMains+Earphonechargingport(BatteryStatus:≤1%) Mode8ACMains+Earphonechargingport(BatteryStatus:50%) Mode9ACMains+Earphonechargingport(BatteryStatus:≥98%) Mode10Earphonechargingport(BatteryStatus:≤1%) Mode11Earphonechargingport(BatteryStatus:50%) Mode12Earphonechargingport(BatteryStatus:≥98%) Mode13ACMains+Phonechargingport(BatteryStatus:≤1%)-110.1-205KHz Mode14ACMains+Phonechargingport(BatteryStatus:50%)-110.1-205KHz Mode15ACMains+Phonechargingport(BatteryStatus:≥98%)-110.1-205KHz Mode16Phonechargingport(BatteryStatus:≤1%)-110.1-205KHz Mode17Phonechargingport(BatteryStatus:50%)-110.1-205KHz Mode18Phonechargingport(BatteryStatus:≥98%)-110.1-205KHz Mode19ACMains+Phonechargingport(BatteryStatus:≤1%)-350-370KHz Mode20ACMains+Phonechargingport(BatteryStatus:50%)-350-370KHz Mode21ACMains+Phonechargingport(BatteryStatus:≥98%)-350-370KHz Mode22Phonechargingport(BatteryStatus:≤1%)-350-370KHz Mode23Phonechargingport(BatteryStatus:50%)-350-370KHz Mode24Phonechargingport(BatteryStatus:≥98%)-350-370KHz Mode25Standby Note:1.Alltestmodeshasbeentested,thisreportonlyreflectedtheworstmode. ProjectNo.:ZHT-251229129W01-2 Page 5 of 13 1.3.AUXILIARYEQUIPMENT Item EquipmentMfr/BrandModel/TypeNo.SeriesNo.Note E-1ACAdapterXiaomiMDY-08-EH/AE E-2ApplewatchAppleInc.ultra2/AE E-3EarphoneAppleInc.A2031/AE E-4MobilephoneXiaomiCommunicationsCo.,Ltd.Xiaomi13/AE ProjectNo.:ZHT-251229129W01-2 Page 6 of 13 2.RFEXPOSURETEST 2.1.MEASURINGSTANDARD KDB680106D01WirelessPowerTransferv04 2.2.REQUIREMENTS A…

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

ProjectNo.:ZHT-251229129W01-1 Page 1 of 24 Intheconfigurationtested,theEUTcompliedwiththestandardsspecifiedabove. Preparedby:Reviewedby: Approvedby: KimiLu/EngineerBaretWu/DirectorLeviLee/Manager Note:ThisdevicedescribedabovehasbeentestedbyZHT,andthetestresultsshowthattheequipment undertest(EUT)isincompliancewiththeFCCrequirements.Anditisapplicableonlytothetestedsample identifiedinthereport.Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofZHT, thisdocumentmaybealteredorrevisedbyZHT,personalonly,andshallbenotedintherevisionofthe document. FCCTESTREPORT FCCID:2BT5R-CX1 ReportNo........................:ZHT-251229129W01-1 Product............................:MagneticPowerBank Trademark.......................:/ Model(s)...........................:CX1 ModelDifference..............:/ Applicant..........................:ShenzhenTangxinStormTechnologyCo.,Ltd Address...........................:No.1SouthChinaAvenue,HehuaCommunity,PInghuStreet,Longgang District,ShenzhenCity,China Manufacturer....................:ShenzhenTangxinStormTechnologyCo.,Ltd Address............................:No.1SouthChinaAvenue,HehuaCommunity,PInghuStreet,Longgang District,ShenzhenCity,China Preparedby.....................:GuangdongZhonghanTestingTechnologyCo.,Ltd. Address............................:Room104/201,Building1,YibaolaiIndustrialPark,Qiaotou,Fuhai Subdistrict,Bao'anDistrict,Shenzhen,Guangdong,China DateofReceipt................:Dec.29,2025 DateofTest(s)................:Dec.29,2025toJan.8,2026 DateofIssue....................:Jan.8,2026 Standard..........................................::FCCCFRTitle47Part15SubpartC Testprocedure................................::/ ProjectNo.:ZHT-251229129W01-1 Page 2 of 24 TABLEOFCONTENTS 1.TESTSUMMARY......................................................................................................................................3 2.GENERALINFORMATION......................................................................................................................4 2.1GENERALDESCRIPTIONOFEUT...................................................................................................4 2.2Testmode...........................................................................................................................................5 2.3BlockDiagramofEUTConfiguration..................................................................................................6 2.4TestConditions...................................................................................................................................6 2.5DescriptionOfSupportUnits(ConductedMode)...............................................................................6 3.TAESTFACILITYANDTESTINSTRUMENTUSED..............................................................................7 3.1TESTFACILITY..................................................................................................................................7 3.2EQUIPMENTSLISTFORALLTESTITEMS.....................................................................................7 3.3TESTINGSOFTWARE.......................................................................................................................8 3.4MEASUREMENTUNCERTAINTY......................................................................................................9 4.CONDUCTEDEMISSIONTEST............................................................................................................10 4.1CONDUCTEDEMISSIONMEASUREMENT...................................................................................10 4.2POWERLINECONDUCTEDEMISSIONLimits..............................................................................10 4.3TESTPROCEDURE.........................................................................................................................10 4.4DEVIATIONFROMTESTSTANDARD............................................................................................10 4.5TESTSETUP....................................................................................................................................11 4.6EUTOPERATINGCONDITIONS.....................................................................................................11 4.7TestResult........................................................................................................................................12 5.RADIATEDEMISSIONMEASUREMENT..............................................................................................14 5.1RadiatedEmissionLimits..................................................................................................................14 5.2AnechoicChamberTestSetupDiagram..........................................................................................15 5.3TestProcedure.................................................................................................................................15 5.4DEVIATIONFROMTESTSTANDARD............................................................................................15 5.5TestResult........................................................................................................................................16 6.BANDWIDTHTEST................................................................................................................................19 7.ANTENNAREQUIREMENT...................................................................................................................23 8.TESTSETUPPHOTO............................................................................................................................24 9.EUTCONSTRUCTIONALDETAILS......................................................................................................24 ProjectNo.:ZHT-251229129W01-1 Page 3 of 24 1.TESTSUMMARY TestItemSectioninCFR47Result Antennarequirement15.203Pass ACPowerLineConductedEmission15.207Pass SpuriousEmission15.209(a)(f)Pass 20dBBandw…

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

FCCID:2BT5R-CX1 EUTTESTPHOTOS FCCID:2BT5R-CX1 FCCID:2BT5R-CX1 FCCID:2BT5R-CX1 FCCID:2BT5R-CX1 ※※※※※ENDOFREPORT※※※※※