2A2AR-STG6952KB6 IN 1 SOUND MACHINE CLOCK

FCC Statement 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. 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 residential 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 television 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 technician for help. Caution: Any changes or modifications to this device not explicitly approved by manufacturer could void your authority to operate this equipment. RF Exposure Information The device was evaluated to meet general RF exposure requirements. This equipment should be installed and used with a minimum distance of 0 mm between the radiator and your body.

DongGuan Xinvouc Electronic Co.Ltd Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7 435 Oakland Mills Road Columbia, MD 21046 12/12/23 U.S. Agent Designation [Donif,uan Xinvouc Electronic Co.Ltd] acknowledges their consent fo「the following contact located in the Uni ted States to act as their agent fo「serviceof process fo「the equipment fo「which authorization is sought (FCC ID 2A2AR -STG6952KB Name and company of U.S. agent: Physical U.S. add「ess of agent: FRN of U.S. agent: Email adctess of U.S. agent: (USA MEIHUA TRADING INC] (5379 Pine Valley Ct Boulde「co80301 United States] (0033406166] (meihua-tradng-incafoxmail.com] [USA MEIHUA TRADING INC] ackn owledges their obligation to accept servic e of process on behalf of [DongGuan Xinvouc Electronic Co.Ltd] DongGuan Xinvouc Electronic Co.ltd wth the FRN [0031028954] accepts its obligation to maintain an agent to「serviceof process in the United States to「no less than one yea「afte「eithe「the grantee has permanently terminated all ma「Ketingand importation of the applicable equipment within the U.S., o「the conclusion of any Commission-related administrative o「jucicial proceeding involving the e中ipment, whichever is l ate「 By signing this form, we confi「m the above and that we a「e awa「e of the application re中1「ementslisted un知§ 2. 911 ( d ) [l ) The information p「ovidedin this letter is based on the refe「encedrule parts of Title 47 of the CFR as wen as KDB 986446 D01 An expi「ation date fo「thislette「does not exist. In case the U.S. agent changes , the grantee is obligated to notify the FCC within 30 days via the granting TCB Si ncere l y, 巨 心 七 务 令 f2. 一 S OA ' n ' CXP)二6 · i 1uo11v snli•puuj 8P Signatu「e Betty Be Manager Donif,uan Xinvouc Electronic Co.Ltd Sign atu「e Ha 「leyQuinn Manager USA MEIHUA TRADING INC

Sincerely, Name/Title： Betty Be/Manager Company: DongGuan Xinvouc Electronic Co.Ltd Address: 401, Building 1, NO 53, Gaotang Road, Tangxia Town, Dongguan, Guangdong, China Phone: 86-18129949472 Fax: 86-18129949472 E-Mail: [email protected]

Page1of4 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. ExternalPhotos Photo1 Photo2 Page2of4 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo3 Photo4 Page3of4 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo5 Photo6 Page4of4 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo7 Photo8 ------End------

Label ModelNo.:STG-6952-KB FCCID:2A2AR-STG6952KB

Page 1 of 6 Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. Internal Photos Photo 1 Photo 2 Page 2 of 6 Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. Photo 3 Photo 4 Page 3 of 6 Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. Photo 5 Photo 6 Page 4 of 6 Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. Photo 7 Photo 8 Antenna Page 5 of 6 Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. Photo 9 Photo 10 Page 6 of 6 Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. Photo 11 Photo 12 ------End------

RFExposureevaluation FCCID:2A2AR-STG6952KB ApplicableStandard Accordingto§1.1307(b)(1),systemsoperatingundertheprovisionsofthissectionshallbeoperatedina mannerthatensuresthatthepublicisnotexposedtoradiofrequencyenergylevelinexcessofthe Commission’sguidelines. Accordingto§1.1310and§2.1093RFexposurerequirement KDB447498v06:MobileandPortableDevicesRFExposureProceduresandEquipmentAuthorization Policies 1.1.Requirement AccordingtoKDB447498D01GeneralRFExposureGuidancev06Section4.3.1StandaloneSARtest exclusionconsiderations:“UnlessspecificallyrequiredbythepublishedRFexposureKDBprocedures, standalone1-gheadorbodyand10-gextremitySARevaluationforgeneralpopulationexposureconditions, bymeasurementornumericalsimulation,isnotrequiredwhenthecorrespondingSARTestExclusion Thresholdcondition,listedbelow,issatisfied.Thesetestexclusionconditionsarebasedonsource-based time-averagedmaximumconductedoutputpoweroftheRFchannelrequiringevaluation,adjustedfortune-up tolerance,andtheminimumtestseparationdistancerequiredfortheexposureconditions.22Theminimum testseparationdistanceisdeterminedbythesmallestdistancefromtheantennaandradiatingstructuresor outersurfaceofthedevice,accordingtothehostformfactor,exposureconditionsandplatformrequirements, toanypartofthebodyorextremityofauserorbystander(see5)ofsection4.1).ToqualifyforSARtest exclusion,thetestseparationdistancesappliedmustbefullyexplainedandjustifiedbytheoperating configurationsandexposureconditionsofthetransmitterandapplicablehostplatformrequirements,typically intheSARmeasurementorSARanalysisreport,accordingtotherequiredpublishedRFexposureKDB procedures.WhennootherRFexposuretestingorreportingisrequired,astatementofjustificationand compliancemustbeincludedintheequipmentapproval,inlieuoftheSARreport,toqualifyfortheSARtest exclusion.Whenrequired,thedevicespecificconditionsdescribedintheotherpublishedRFexposureKDB proceduresmustbesatisfiedbeforeapplyingtheseSARtestexclusionprovisions;forexample,handheldPTT two-wayradios,handsets,laptops&tabletsetc.23“ [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance,mm)]·[√f(GHz)] ≤ 3.0for1-gSARand ≤ 7.5for10-gextremitySAR,where: • f(GHz)istheRFchanneltransmitfrequencyinGHz •PoweranddistanceareroundedtothenearestmWandmmbeforecalculation •Theresultisroundedtoonedecimalplaceforcomparison • 3.0and7.5arereferredtoasthenumericthresholdsinthestep2below Thetestexclusionsareapplicableonlywhentheminimumtestseparationdistanceis≤50mmandfor transmissionfrequenciesbetween100MHzand6GHz.Whentheminimumtestseparationdistanceis<5 mm,adistanceof5mmaccordingto5)insection4.1isappliedtodetermineSARtestexclusion. 1.2.Manufacturingtolerance BR-EDR Frequency (MHz) GFSK 240224412480 Target(dBm)-2.0-2.0-2.0 Tolerance±(dB)1.01.01.0 Frequency (MHz) π/4DQPSK 240224412480 Target(dBm)-1.0-1.0-1.0 Tolerance±(dB)1.01.01.0 Page2of2 2.EvaluationResult EvaluationResults Band/Modef(GHz) Antenna Distance (mm) Max.RFoutputpower (includingtune-up tolerance) SARTest Exclusion Threshold SARTest Exclusion dBmmW BR-EDR2.5501.00.31<3.0Yes 3.Conclusion ThemeasurementresultscomplywiththeFCCLimitper47CFR2.1093fortheuncontrolledRFExposure andSARExclusionThresholdperKDB447498v06 .....................EndofReport.........................

Page1of38ReportNo.:AIT23112704FW1 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. TESTREPORT ClientInformation: Applicant:DongGuanXinvoucElectronicCo.Ltd Applicantadd.: 401,Building1,NO53,GaotangRoad,TangxiaTown,Dongguan, Guangdong,China Manufacturer:XinvoIndustrialCompanyLimited Manufactureradd.: Room408,4F,BuildingA,GetailongIndustrialPark,BanTian,LongGangDist, Shenzhen,Guangdong,China ProductInformation: ProductName:6IN1SOUNDMACHINECLOCK ModelNo:STG-6952-KB BrandName:N/A FCCID:2A2AR-STG6952KB Applicablestandards: FCCCFRTitle47Part15SubpartCSection15.247 PreparedBy: DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang,Huangjiang,Dongguan, Guangdong,China Tel.:+86-769-82020499Fax.:+86-769-82020495 DateofReceipt:Nov.27,2023DateofTest:Nov.27,2023~Nov.28,2023 DateofIssue:Nov.29,2023TestResult:Pass ThisdevicedescribedabovehasbeentestedbyDongguanYaxu(AiT)TechnologyLimitedandthe testresultsshowthattheequipmentundertest(EUT)isincompliancewiththeFCCrequirements. Anditisapplicableonlytothetestedsampleidentifiedinthereport. Note:Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofDongguan Yaxu(AiT)TechnologyLimited,thisdocumentmaybealteredorrevisedbyDongguanYaxu(AiT) TechnologyLimited,personalonly,andshallbenotedintherevisionofthedocument.Thistest reportmustnotbeusedbytheclienttoclaimproductendorsement. Reviewedby:Approvedby: SimbaHuangSeal.chen Page2of38ReportNo.:AIT23112704FW1 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. 1Contents Page COVERPAGE 1CONTENTS......................................................................................................................................................................2 2TESTSUMMARY............................................................................................................................................................4 2.1StatementoftheMeasurementUncertainty................................................................................4 2.2MeasurementUncertainty............................................................................................................4 3TESTFACILITY..............................................................................................................................................................5 3.1Deviationfromstandard...............................................................................................................5 3.2Abnormalitiesfromstandardconditions.......................................................................................5 3.3TestLocation.................................................................................................................................5 4GENERALINFORMATION...........................................................................................................................................6 4.1Testfrequencies............................................................................................................................7 4.2EUTPeripheralList.......................................................................................................................8 4.3TestPeripheralList.......................................................................................................................8 4.4TESTMETHODOLOGY...............................................................................................................9 4.5DescriptionofTestModes..........................................................................................................10 5EQUIPMENTUSEDDURINGTEST.........................................................................................................................11 6TESTRESULTSANDMEASUREMENTDATA.....................................................................................................11 6.1Antennarequirement..................................................................................................................12 6.2PeakPowerMeasurement.........................................................................................................13 6.3FrequencySeparationand20dBBandwidth............................................................................15 6.4NumberofHoppingFrequency..................................................................................................17 6.5TimeofOccupancy(DwellTime)...............................................................................................17 6.6ConductedSpuriousEmissionsandBandEdgesTest.............................................................17 6.7Restrict-bandBand-edgeMeasurements..................................................................................22 6.8RadiatedEmissionsMeasurement............................................................................................24 6.9ConductedEmissions.................................................................................................................34 6.10Pseudorandomfrequencyhoppingsequence...........................................................................37 7TESTSETUPPHOTOGRAPHSOFEUT.................................................................................................................38 8EXTERNALPHOTOGRAPHSOFEUT....................................................................................................................38 9INTERNALPHOTOGRAPHSOFEUT.....................................................................................................................38 Page3of38ReportNo.:AIT23112704FW1 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. RevisionHistory RevisionIssueDateRevisionsRevisedBy 000Nov.29,2023InitialIssueSealChen Page4of38ReportNo.:AIT23112704FW1 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China.…

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

Product specification Quick Reference Date Antenna module on the system board Frequenc Range 2400 ~ 2500MHz Ant. Port Input Pwr. (dBm) 0 (Typ. BT class 2 output power) Tot. Rad. Pwr. (dBm) -1.2 (Input pwr – loss pwr) Peak EIRP(dBm) 1.2 Directivity (dBi) 1 (all direction antenna) Efficiency (dB) 6 0.2 % Gain (dBi) 1.9(Peak Gain XY-plane) Maximum Power (dBm) 1.7 (XY-plane) Minimum Power (dBm) -4(XY-plane) Avg. Power (dBm) -0.5(XY-plane) Input Impendence(ohm) 50 Polarization Type V ertical & Horizontal V . S .W . R < 1.4 All the technical data and information contained herein are subject to change without prior notice Antenna Layout & module on the system board Antenna Gain Gain Table Unit in dBi @2.44GHz XY-plane XZ-plane YZ-plane Efficiency Peak Avg. Peak Avg. Peak Avg. Module Board 1.2 -0.5 1.9 -3.6 1.1 -3.0 6 0.2 % Retum Loss The Environment of Antenna Radiation Pattem 3D radiation pattern diagram XY-plane XZ-plane YZ-plane

DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23112704FW1 Page1of42 AppendixA RFTestDataforBT(BDR/EDR)(ConductedMeasurement) ProductName:6IN1SOUNDMACHINECLOCK TradeMark:N/A TestModel:STG-6952-KB EnvironmentalConditions Temperature:24.4°C RelativeHumidity:52.3% ATMPressure:101Kpa TestEngineer:SimbaHuang Supervisedby:SealChen DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23112704FW1 Page2of42 Contents Page COVERPAGE 1DutyCycle...............................................................................................................................................................................................3 1.1TestResult.....................................................................................................................................................................................3 1.2TestGraphs...................................................................................................................................................................................4 2MaximumConductedPeakOutputPower...............................................................................................................................................7 2.1TestResult.....................................................................................................................................................................................7 2.2TestGraphs...................................................................................................................................................................................8 320dBBandwidth.....................................................................................................................................................................................11 3.1TestResult...................................................................................................................................................................................11 3.2TestGraphs.................................................................................................................................................................................12 4CarrierFrequencySeparation...............................................................................................................................................................15 4.1TestResult...................................................................................................................................................................................15 4.2TestGraphs.................................................................................................................................................................................16 5HoppingChannelNumber.....................................................................................................................................................................17 5.1TestResult...................................................................................................................................................................................17 5.2TestGraphs.................................................................................................................................................................................18 6DwellTime.............................................................................................................................................................................................19 6.1TestResult...................................................................................................................................................................................19 6.2TestGraphs.................................................................................................................................................................................20 7RFConductedSpuriousEmissions.......................................................................................................................................................22 7.1TestResult...................................................................................................................................................................................22 7.2TestGraphs.................................................................................................................................................................................23 8Band-edgeforRFConductedEmissions...............................................................................................................................................29 8.1TestResult...................................................................................................................................................................................29 8.2TestGraphs.................................................................................................................................................................................30 9Restrict-bandband-edgemeasurements...............................................................................................................................................38 9.1TestResult...................................................................................................................................................................................38 9.2TestGraphs.................................................................................................................................................................................39 DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23112704FW1 Page3of42 1DutyCycle 1.1TestResult ModeFrequency(MHz)DutyCycle(%)1/T(kHz) 1-DH1240231.212.63 1-DH12441322.56 1-DH1248031.832.56 2-DH1240232.82.5 2-DH1244132.012.56 2-DH12480322.56 DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23112704FW1 Page4of42 1.2TestGraphs TestGraphs 1-DH12402MHz 1-DH12441MHz DongguanYaxu(AiT)Tec…

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

DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23112704FW1 Page31of42 Ref GFSK/LCH/Hop DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23112704FW1 Page32of42 Ref GFSK/HCH/NoHop DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23112704FW1 Page33of42 Ref. GFSK/HCH/Hop DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23112704FW1 Page34of42 Ref π/4DQPSK/LCH/No Hop DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23112704FW1 Page35of42 Ref π/4DQPSK/LCH/Hop DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23112704FW1 Page36of42 Ref π/4DQPSK/HCH/No Hop DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23112704FW1 Page37of42 Ref π/4DQPSK/HCH/Hop DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23112704FW1 Page38of42 9Restrict-bandband-edgemeasurements 9.1 TestResult Test Mode HoppingFreq. Power [dBm] Gain E [dBuV/m] Detector Limit [dBuV/m] Verdict GFSK Off2310.0-47.82249.41PEAK74Pass Off2310.0-54.91242.32AV54Pass Off2360.976-43.79253.44PEAK74Pass Off2381.904-52.92244.31AV54Pass Off2390.0-46.19251.04PEAK74Pass Off2390.0-53.52243.71AV54Pass Off2483.5-45.75251.48PEAK74Pass Off2483.5-54.55242.68AV54Pass Off2495.224-42.07255.16PEAK74Pass Off2499.016-51.84245.39AV54Pass Off2500.0-45.61251.62PEAK74Pass Off2500.0-52.3244.93AV54Pass π/4DQPSK Off2310.0-45.78251.45PEAK74Pass Off2310.0-55.1242.13AV54Pass Off2341.104-43.51253.72PEAK74Pass Off2383.92-53.04244.19AV54Pass Off2390.0-46.23251PEAK74Pass Off2390.0-54.11243.12AV54Pass Off2483.5-46.62250.61PEAK74Pass Off2483.5-54.5242.73AV54Pass Off2496.352-41.54255.69PEAK74Pass Off2497.96-52.13245.1AV54Pass Off2500.0-42.34254.89PEAK74Pass Off2500.0-52.23245AV54Pass DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23112704FW1 Page39of42 9.2TestGraphs Restrict-bandband-edgemeasurements_HoppingOff_GFSK_PEAK(LowChannel) Restrict-bandband-edgemeasurements_HoppingOff_GFSK_Average(LowChannel) DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23112704FW1 Page40of42 Restrict-bandband-edgemeasurements_HoppingOff_GFSK_PEAK(HighChannel) Restrict-bandband-edgemeasurements_HoppingOff_GFSK_Average(HighChannel) DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23112704FW1 Page41of42 Restrict-bandband-edgemeasurements_HoppingOff_π/4-DQPSK_PEAK(LowChannel) Restrict-bandband-edgemeasurements_HoppingOff_π/4-DQPSK_Average(LowChannel) DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23112704FW1 Page42of42 Restrict-bandband-edgemeasurements_HoppingOff_π/4-DQPSK_PEAK(HighChannel) Restrict-bandband-edgemeasurements_HoppingOff_π/4-DQPSK_Average(HighChannel) ---TheEnd---

Page1of2 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. TestSetupPhoto RadiatedEmission Page2of2 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. ConductedEmission ------End------