2A85J-K7042Heated Vest

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

ShenzhenYicaiwangluoTechnologyCo.,Ltd CERTIFICATIONSCONCERNING“COVERED”EQUIPMENT Date:Oct.30,2023 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,Maryland21046 FCCID:2A85J-K7042 ToWhomItMayConcern: Asrequiredbysection 2.911(d)(5)(i),ShenzhenYicaiwangluoTechnologyCo.,Ltd (“the applicant”)certifiesthattheequipmentforwhichauthorizationissoughtisnot “covered”equipmentprohibitedfromreceivinganequipmentauthorizationpursuant tosection2.903oftheFCCrules. Asrequiredbysection2.911(d)(5)(ii),ShenzhenYicaiwangluoTechnologyCo.,Ltd (“theapplicant”)certifiesthat,asofthedateofthefilingoftheapplication,the applicantisnotidentifiedontheCoveredListasanentityproducing“covered” equipment. Thankyouforyourattentiontothismatter. Sincerelyyours, Signature: PrintedName:LingGuoqing Company:ShenzhenYicaiwangluoTechnologyCo.,Ltd JobTitle:Manager Email:[email protected] Telephone:13760701740

ShenzhenYicaiwangluoTechnologyCo.,Ltd Date:Oct.30,2023 Subject:authorizationforaddingfamilymodels FCCID:2A85J-K7042 TowhomitMayconcern, WewouldliketoconfirmtheHeatedVestWithModels(K7042,K7040,K7041,K7043,K7044, K7045,K7046,K7047）aresameinallrespects.Onlythemodelnamesaredifferentfordifferent marketrequirement. Yourssincerely, Signature: PrintedName:LingGuoqing Company:ShenzhenYicaiwangluoTechnologyCo.,Ltd JobTitle:Manager Email:[email protected] Telephone:13760701740

ShenzhenYicaiwangluoTechnologyCo.,Ltd LetterofAgency Date：Oct.30,2023 ElementMaterialsTechnology 100FrobisherBusinessPark Malvern Worcestershire WR141BX UK FCCID:2A85J-K7042 ToWhomItMayConcern: Wecertifythatwearenotsubjecttodenialoffederalbenefits,thatincludesFCCbenefits, pursuanttoSection5301oftheAnti-DrugAbuseACTof1988,U.S.C.862.Further,noparty,as definedin47CFR1.2002(b),totheapplication,issubjecttodenialoffederalbenefits,that includesFCCbenefits. Thankyouforyourattentiontothismatter. Sincerelyyours, Signature: PrintedName:LingGuoqing Company:ShenzhenYicaiwangluoTechnologyCo.,Ltd JobTitle:Manager Email:[email protected] Telephone:13760701740

ShenzhenYicaiwangluoTechnologyCo.,Ltd RequestforConfidentialityLetter-FCC Date：Oct.30,2023 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,Maryland21046 Re:Requestforconfidentiality FCCID:2A85J-K7042 Towhomitmayconcern, Weherebyrespectfullyrequestthatundertheprovisionof47CFR0.459and0.457(d)the documentslistedbelowandattachedwiththisapplicationforcertificationbeprovidedwith confidentialstatus.  Schematics.pdf OperationalDescription.pdf  FrequencyBlockDiagrams.pdf Anyexhibit/informationforwhichwehaverequestedconfidentiality,butwhichmaynotbe accordedsuchtreatmentbytheFCC,shouldbereturnedtous. Thedocumentslistedabovecontaintradesecretsthataretreatedasconfidentialbyus. Substantialcompetitiveharmtouscouldresultshouldtheybemadeavailabletothepublic. Sincerely, Signature: PrintedName: LingGuoqing Company:ShenzhenYicaiwangluoTechnologyCo.,Ltd JobTitle:Manager Email: [email protected] Telephone:13760701740

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FCCID:2A85J-K7042

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FCCID:2A85J-K7042 RFExposureEvaluation AccordingtoKDB447498D01GeneralRFExposureGuidancev06andpart2.1093， UnlessspecificallyrequiredbythepublishedRFexposureKDBprocedures,standalone 1-gheadorbodyand10-gextremitySARevaluationforgeneralpopulationexposure conditions,bymeasurementornumericalsimulation,isnotrequiredwhenthe correspondingSARTestExclusionThresholdcondition(s),listedbelow,is(are)satisfied. For100MHzto6GHzandtestseparationdistances≤50mm,the1-gand10-gSARtest exclusionthresholdsaredeterminedbythefollowing: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance, mm)]·[√f (GHz) ]≤3.0for1-gSAR,and≤7.5for10-gextremitySAR,where f (GHz) istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbeforecalculation Theresultisroundedtoonedecimalplaceforcomparison Here, ForBLE MaxPower(dBm)MaxPower(mW)Frequency(MHz)Min.distance(mm)Calc.thresholdslimit 0.151.035124805 0.136 3.0 SoaSARtestisnotrequired

Designdataofthe2.4GantennaonthePCBboard PCBantenna,duetoconstrainedPCBspace,Themaximumgainwillbe about6dBsmallerthantheotherantennas,ortheworkingdistancewill behalfshorter.ThustheantennaandThesizeofthecompleteboard madebyMCUisabout11mm*18mm. Themaximumgainofthisantennaisonlyabout-5dBi:

BSLTestingCo.,LTD.ProjectNo.:BSL2305318275047F Page 1 of 41 FCCPART15C MeasurementandTestReport For ShenzhenYicaiwangluoTechnologyCo.,Ltd FCCID:2A85J-K7042 FCCRule(s)/Methods: FCCCFRTitle47Part15SubpartCSection15.247 ANSIC63.10:2013 ProductDescription: HeatedVest Trademark / Model/Typereference.: K7042,K7040,K7041,K7043,K7044,K7045, K7046,K7047. ReportNo.:BSL2305318275047F Dateofreceiptoftestitem:Oct.23,2023 Dateofsampling:Oct.23,2023 TestedDate:Oct.23,2023toOct.31,2023 IssuedDate:Oct.31,2023 TestedBy: CindyZheng/Engineer ReviewedBy: HaleyWen/EMCManager Approved&AuthorizedBy: MikeMo/PSQManager BSLTestingCo.,LTD. 1/F,BuildingB,XinshidaiGRPark,ShiyanStreet,Bao'anDistrict,Shenzhen,Shiyan Street,Bao'anDistrict,Shenzhen,Guangdong,518052,People’sRepublicofChina Tel:400-882-9628Fax:86-755-26508703 BSLTestingCo.,LTD.ProjectNo.:BSL2305318275047F Page 2 of 41 TableofContents Page 1.VERSION4 2.SUMMARYOFTESTRESULTS5 2.1TESTFACILITY6 2.2MEASUREMENTUNCERTAINTY6 3.GENERALINFORMATION7 3.1GENERALDESCRIPTION7 3.2DESCRIPTIONOFTESTMODES9 3.3BLOCKDIGRAMSHOWINGTHECONFIGURATIONOFSYSTEMTESTED9 3.4DESCRIPTIONOFSUPPORTUNITS(CONDUCTEDMODE)9 3.5EQUIPMENTSLISTFORALLTESTITEMS10 4.EMCEMISSIONTEST12 4.1CONDUCTEDEMISSIONMEASUREMENT12 4.1.11POWERLINECONDUCTEDEMISSIONLIMITS12 4.1.2TESTPROCEDURE12 4.1.3DEVIATIONFROMTESTSTANDARD12 4.1.4TESTSETUP13 4.1.5EUTOPERATINGCONDITIONS13 4.1.6TESTRESULTS13 4.2RADIATEDEMISSIONMEASUREMENT13 4.2.1RADIATEDEMISSIONLIMITS16 4.2.2TESTPROCEDURE17 4.2.3DEVIATIONFROMTESTSTANDARD17 4.2.4TESTSETUP17 4.2.5EUTOPERATINGCONDITIONS18 5.RADIATEDBANDEMISSIONMEASUREMENT23 5.1TESTREQUIREMENT:23 5.2TESTPROCEDURE23 5.3DEVIATIONFROMTESTSTANDARD23 5.4TESTSETUP24 5.5EUTOPERATINGCONDITIONS24 5.6TESTRESULT25 6.POWERSPECTRALDENSITYTEST26 6.1APPLIEDPROCEDURES/LIMIT26 6.2TESTPROCEDURE26 6.3DEVIATIONFROMSTANDARD26 6.4TESTSETUP26 BSLTestingCo.,LTD.ProjectNo.:BSL2305318275047F Page 3 of 41 TableofContentsPage 6.5EUTOPERATIONCONDITIONS26 6.6TESTRESULTS27 7.CHANNELBANDWIDTH29 7.1APPLIEDPROCEDURES/LIMIT29 7.2TESTPROCEDURE29 7.3DEVIATIONFROMSTANDARD29 7.4TESTSETUP29 7.5EUTOPERATIONCONDITIONS29 7.6TESTRESULTS30 8.PEAKOUTPUTPOWERTEST32 8.1APPLIEDPROCEDURES/LIMIT32 8.2TESTPROCEDURE32 8.3DEVIATIONFROMSTANDARD32 8.4TESTSETUP32 8.5EUTOPERATIONCONDITIONS32 8.6TESTRESULTS33 9.CONDUCTEDBANDEDGEANDSPURIOUSEMISSION34 9.1APPLICABLESTANDARD34 9.2TESTPROCEDURE34 9.3DEVIATIONFROMSTANDARD34 9.4TESTSETUP34 9.5EUTOPERATIONCONDITIONS34 10.ANTENNAREQUIREMENT40 11.TESTSETUPPHOTO41 12.EUTCONSTRUCTIONALDETAILS41 BSLTestingCo.,LTD.ProjectNo.:BSL2305318275047F Page 4 of 41 1.VERSION ReportNo.VersionDescriptionApproved BSL2305318275047FRev.01InitialissueofreportOct.31,2023 BSLTestingCo.,LTD.ProjectNo.:BSL2305318275047F Page 5 of 41 2.SUMMARYOFTESTRESULTS Testproceduresaccordingtothetechnicalstandards: FCCPart15(15.247),SubpartC Standard Section TestItemJudgmentRemark FCCpart15.203/15.247 (c) AntennarequirementPASS FCCpart15.207ACPowerLineConductedEmissionPASS FCCpart15.247(b)(3)ConductedPeakOutputPowerPASS FCCpart15.247(a)(2)ChannelBandwidth&99%OCBPASS FCCpart15.247(e)PowerSpectralDensityPASS FCCpart15.247(d) ConductedBandEdgeandSpurious Emission PASS FCCpart15.205/15.209SpuriousEmissionPASS NOTE: (1)“N/A”denotestestisnotapplicableinthisTestReport BSLTestingCo.,LTD.ProjectNo.:BSL2305318275047F Page 6 of 41 2.1TESTFACILITY BSLTESTINGCO.,LTD Add.:1/F,BuildingB,XinshidaiGRPark,ShiyanStreet,Bao'anDistrict,Shenzhen,ShiyanStreet, Bao'anDistrict,Shenzhen,Guangdong,518052,People’sRepublicofChina FCCTestFirmRegistrationNumber:562200 DesignationNumber:CN1338 ICRegisteredNo.:11093A DesignationNumber:CN0019 2.2MEASUREMENTUNCERTAINTY Thereporteduncertaintyofmeasurementy±U ， whereexpendeduncertaintyUisbasedonastandard uncertaintymultipliedbyacoveragefactorofk=2，providingalevelofconfidenceofapproximately95 % 。 No.ItemUncertainty 1 3mcamberRadiatedspurious emission(9KHz-30MHz) U=4.5dB 2 3mcamberRadiatedspurious emission(30MHz-1GHz) U=4.8dB 3 3mchamberRadiatedspurious emission(1GHz-6GHz) U=4.9dB 4 3mchamberRadiatedspurious emission(6GHz-40GHz) U=5.0dB 5ConducteddisturbanceU=3.2dB 6RFBandEdgeU=1.68dB 7RFpowerconductedU=1.86dB 8RFconductedSpuriousEmissionU=2.2dB 9RFOccupiedBandwidthU=1.8dB 10RFPowerSpectralDensityU=1.75dB 11humidityuncertaintyU=5.3% 12Temperatureuncertainty U=0.59 °C BSLTestingCo.,LTD.ProjectNo.:BSL2305318275047F Page 7 of 41 3.GENERALINFORMATION 3.1GENERALDESCRIPTION Applicant: ShenzhenYicaiwangluoTechnologyCo.,Ltd Addressofapplicant: YousongSecondindustrialZone,Fukangcommunity,Longhua,416 Rm,4F,3Bldg,1980TechnologyCulturallndustryParkShenzhenG uangDongShengChina518000 Manufacturer: ShenzhenYicaiwangluoTechnologyCo.,Ltd Addressofmanufacturer: YousongSecondindustrialZone,Fukangcommunity,Longhua,416 Rm,4F,3Bldg,1980TechnologyCulturallndustryParkShenzhenG uangDongShengChina518000 ProductName: HeatedVest ModelNo.: K7042,K7040,K7041,K7043,K7044,K7045,K7046,K7047. ModelDifferent.: Theproductisdifferentformodelname. SerialNo.: N/A Sample(s)Status:Engineersample OperationFrequency:2402MHz~2480MHz ChannelNumbers:40 ChannelSeparation:2MHz ModulationType:GFSK AntennaType:PCBantenna Antennagain:-5dBi Powersupply: DC5VFromUSBport SWITCHINGPOWER ADAPTER: N/A BSLTestingCo.,LTD.ProjectNo.:BSL2305318275047F Page 8 of 41 OperationFrequencyeachofchannel ChannelFrequencyChannelFrequencyChannelFrequencyChannelFrequency 12402MHz112422MHz212442MHz312462MHz 22404MHz122424MHz222444MHz322464MHz 32406MHz132426MHz232446MHz332466MHz 42408MHz142428MHz242448MHz342468MHz 52410MHz152430MHz252450MHz352470MHz 62412MHz162432MHz262452MHz362472MHz 72414MHz172434MHz272454MHz372474MHz 82416MHz182436MHz282456MHz382476MHz 92418MHz192438MHz292458MHz392478MHz 102420MHz202440MHz302460MHz402480MHz Note: Insection15.31(m),regardstotheoperatingfrequencyrangeover10MHz,theLowestfrequency, themiddlefrequency,andthehighestfrequencyofchannelwereselectedtoperformthetest,and theselectedchannelseebelow: ChannelFrequency Thelowestchannel2402MHz Themiddlechannel2440MHz TheHighestchannel2480MHz BSLTestingC…

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