2A4UX-A1WIRELESS SPEAKER

ShenzhenJingruiWeiyeTechnologyCo.,Ltd. LetterofAgency Date：Sep.27,2023 ElementMaterialsTechnology 100FrobisherBusinessPark Malvern Worcestershire WR141BX UK FCCID:2A4UX-A1 ToWhomItMayConcern: Wecertifythatwearenotsubjecttodenialoffederalbenefits,thatincludesFCCbenefits, pursuanttoSection5301oftheAnti-DrugAbuseACTof1988,U.S.C.862.Further,noparty,as definedin47CFR1.2002(b),totheapplication,issubjecttodenialoffederalbenefits,that includesFCCbenefits. Thankyouforyourattentiontothismatter. Sincerelyyours, Signature: PrintedName:BiliangPeng Company:ShenzhenJingruiWeiyeTechnologyCo.,Ltd. JobTitle:Manager Email:[email protected] Telephone:13602630085

ShenzhenJingruiWeiyeTechnologyCo.,Ltd. CERTIFICATIONSCONCERNING“COVERED”EQUIPMENT Date:Sep.27,2023 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,Maryland21046 FCCID:2A4UX-A1 ToWhomItMayConcern: Asrequiredbysection 2.911(d)(5)(i),ShenzhenJingruiWeiyeTechnologyCo.,Ltd. (“the applicant”)certifiesthattheequipmentforwhichauthorizationissoughtisnot “covered”equipmentprohibitedfromreceivinganequipmentauthorizationpursuant tosection2.903oftheFCCrules. Asrequiredbysection2.911(d)(5)(ii), ShenzhenJingruiWeiyeTechnologyCo.,Ltd. (“the applicant”)certifiesthat,asofthedateofthefilingoftheapplication,theapplicantis notidentifiedontheCoveredListasanentityproducing“covered”equipment. Thankyouforyourattentiontothismatter. Sincerelyyours, Signature: PrintedName:BiliangPeng Company:ShenzhenJingruiWeiyeTechnologyCo.,Ltd. JobTitle:Manager Email:[email protected] Telephone:13602630085

ShenzhenJingruiWeiyeTechnologyCo.,Ltd. RequestforConfidentialityLetter-FCC Date：Sep.27,2023 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,Maryland21046 Re:Requestforconfidentiality FCCID:2A4UX-A1 Towhomitmayconcern, Weherebyrespectfullyrequestthatundertheprovisionof47CFR0.459and0.457(d)the documentslistedbelowandattachedwiththisapplicationforcertificationbeprovidedwith confidentialstatus.  Schematics.pdf OperationalDescription.pdf  FrequencyBlockDiagrams.pdf Anyexhibit/informationforwhichwehaverequestedconfidentiality,butwhichmaynotbe accordedsuchtreatmentbytheFCC,shouldbereturnedtous. Thedocumentslistedabovecontaintradesecretsthataretreatedasconfidentialbyus. Substantialcompetitiveharmtouscouldresultshouldtheybemadeavailabletothepublic. Sincerely, Signature: PrintedName:BiliangPeng Company:ShenzhenJingruiWeiyeTechnologyCo.,Ltd. JobTitle:Manager Email:[email protected] Telephone:13602630085

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FCCID:2A4UX-A1 RFExposureEvaluation Limits Thecriterialistedinthefollowingtableshallbeusedtoevaluatetheenvironmentimpactofhumanexposure toradiofrequency(RF)radiationasspecifiedin1.1307(b) LimitsforMaximumPermissibleExposure(MPE) Frequencyrange (MHz) Electricfield strength (V/m) Magneticfieldstrength (A/m) Powerdensity (mW/cm 2 ) Averagingtime (minutes) (A)LimitsforOccupational/ControlledExposures 0.3–3.06141.63*(100)6 3.0–301842/f4.89/f*(900/f 2 )6 30–30061.40.1631.06 300–1500f/3006 1500–100,00056 (B)LimitsforGeneralPopulation/UncontrolledExposure 0.3–1.346141.63*(100)30 1.34–30824/f2.19/f*(180/f 2 )30 30–30027.50.0730.230 300–1500f/150030 1500–100,0001.030 f=frequencyinMHz Friistransmissionformula:Pd=(Pout*G)/(4*pi*r 2 ) Where Pd=powerdensityinmW/cm 2 ,Pout=outputpowertoantennainmW; G=gainofantennainlinearscale,Pi=3.1416; R=distancebetweenobservationpointandcenteroftheradiatorincm PdidthelimitofMPE,1mW/cm 2 .Ifweknowthemaximumgainoftheantennaandthetotalpowerinputto theantenna,throughthecalculation,wewillknowthedistancerwheretheMPElimitisreached. TestProcedure SoftwareprovidedbyclientenabledtheEUTtotransmitandreceivedataatlowest,middleandhighest channelindividually. TestResultofRFExposureEvaluation 2.4GBTmode Channel Antenna Gain (dBi) Antenna Gain (numeric) Maxtune-up conducted power Outputpowerto antenna(mW) PowerDensity atR=20cm (mW/cm 2 ) Limit (mW/cm 2 ) Result 2402MHz2.61.8201.691.480.0005341PASS Remark:antennagain=2.6dBi

蓝牙天线规格 版权所有 不得复制 1：Antenna Description Antenna Type Antenna Antenna peak gain 2.6dBi Frequency range 2.402GHz～2.480GHz Connect type Direct Connect 2：Antenna picture on the PCB borad 3：Antenna radiation of 3D polar Solution frequency at 2.44G PBC 3：Antenne radiation pattern Z-X plan Z-Y plan XY plan E plan

BSL TestingCo.,LTD.ProjectNo.: BSL2305318275040F Page 1 of 84 FCCPART15C Measurementand Test Report For ShenzhenJingruiWeiyeTechnologyCo., Ltd. FCCID:2A4UX-A1 FCCRule(s)/Methods: FCCCFRTitle 47 Part 15 SubpartC Section15.247 ANSIC63.10:2013 ProductDescription: WIRELESSSPEAKER Trademark / Model/Typereference.: A1 ReportNo.: BSL2305318275040F Dateof receiptof test item : Sep.14, 2023 Dateof sampling: Sep.14, 2023 TestedDate: Sep.14, 2023to Sep.22, 2023 IssuedDate: Sep.22, 2023 TestedBy: CindyZheng/Engineer ReviewedBy: HaleyWen/EMCManager Approved& AuthorizedBy: MikeMo / PSQManager BSL TestingCo.,LTD. 1/F, BuildingB, XinshidaiGR Park,ShiyanStreet,Bao'anDistrict,Shenzhen,Shiyan Street,Bao'anDistrict,Shenzhen,Guangdong,518052,People’s Republicof China Tel: 400-882-9628Fax: 86- 755-26508703 BSL TestingCo.,LTD.ProjectNo.: BSL2305318275040F Page 2 of 84 Page 1. VERSION..................................................................................................................................4 2. TESTSUMMARY...................................................................................................................5 2.1 TESTFACILITY.........................................................................................................................6 2.2 MEASUREMENTUNCERTAINTY......................................................................................6 3. GENERALINFORMATION..................................................................................................7 3.1 GENERALDESCRIPTIONOF EUT...................................................................................7 3.2 Test SetupConfiguration........................................................................................................8 3.3 SupportEquipment...................................................................................................................8 3.4 Test Mode.................................................................................................................................10 3.5 EQUIPMENTSLISTFORALL TESTITEMS................................................................11 4. EMCEMISSIONTEST........................................................................................................13 4.1 Conductedemissions............................................................................................................13 4.1.1POWERLINECONDUCTEDEMISSIONLimits.......................................................13 4.1.2TESTPROCEDURE..........................................................................................................13 4.1.3DEVIATIONFROMTESTSTANDARD.......................................................................13 4.1.4TESTSETUP.......................................................................................................................14 4.1.5EUT OPERATINGCONDITIONS..................................................................................14 4.1.6Test Result（WorstcaseGFSK2402MHz）.............................................................15 4.2 Radiatedemissions................................................................................................................17 4.2.1RadiatedEmissionLimits.................................................................................................17 4.2.2TESTPROCEDURE..........................................................................................................17 4.2.3DEVIATIONFROMTESTSTANDARD.......................................................................18 4.2.4TESTSETUP.......................................................................................................................18 4.2.5EUT OPERATINGCONDITIONS..................................................................................19 4.2.6TESTRESULTS..................................................................................................................20 1GHZ~25GHZ............................................................................................................................23 5. RADIATEDBANDEMISSIONMEASUREMENT........................................................29 5.1 Test Requirement:..................................................................................................................29 5.2 TESTPROCEDURE..............................................................................................................29 5.3 DEVIATIONFROMTESTSTANDARD...........................................................................30 5.4 TESTSETUP...........................................................................................................................30 5.5 EUT OPERATINGCONDITIONS......................................................................................30 5.6 TESTRESULT........................................................................................................................31 6. CONDUCTEDBANDEDGEANDSPURIOUSEMISSION.......................................34 6.1 Limit.............................................................................................................................................34 6.2 Test Setup.................................................................................................................................34 6.3 Test procedure.........................................................................................................................34 6.4 DEVIATIONFROMSTANDARD.......................................................................................34 6.5 Test Result................................................................................................................................35 7. 20 DB &99%BANDWIDTH..................................................................................................56 7.1 Test Setup.................................................................................................................................56 7…

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