2BCWN-RQZ-1Bluetooth Speakers

FCC Warning 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. 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 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. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

SignalSphereInformationTechnologyInc. FederalCommunicationsCommission Authorizationand EvaluationDivision EquipmentAuthorizationBranch 7435 OaklandMills Road Columbia,MD 21046 9/25/23 U.S. AgentDesignation SignalSphereInformationTechnologyInc.acknowledgestheir consentfor the followingcontactlocatedin the UnitedStatesto act as their agent for serviceof processfor the equipmentfor which authorizationis sought(FCC ID: 2BCWN-RQZ-1）: Nameand companyof U.S. agent: Tim Payne,FCC US Agent,LLC PhysicalU.S. addressof agent:3722 IllinoisAvenue,Saint Charles,IL, 60174,USA FRN of U.S. agent: 0033402884 Email addressof U.S. agent: [email protected] FCC US Agent,LLCacknowledgestheir obligationto acceptserviceof processon behalfofSignalSphere InformationTechnologyInc. SignalSphereInformationTechnologyInc.with the FRN0034244921acceptsits obligationto maintainan agentfor serviceof processin the UnitedStatesfor no less than one year after eitherthe granteehas permanentlyterminatedall marketingand importationof the applicableequipmentwithinthe U.S., or the conclusionof any Commission-relatedadministrativeor judicialproceedinginvolvingthe equipment,whicheveris later. By signingthis form, we confirmthe aboveand that we are awareof the applicationrequirementslisted under§ 2.911(d)(7). The informationprovidedin this letter is basedon the referencedrule parts of Title 47 of the CFR as well as KDB 986446D01. An expirationdate for this letter does not exist. In case the U.S. agent changes,the granteeis obligatedto notify the FCC within 30 days via the grantingTCB. Sincerely, Signature [BAOSHENGZHANG] [Manager] [SignalSphereInformationTechnologyInc. ] Signature Tim Payne Manager FCC US Agent,LLC 48_[model] US_Agent_2.911(d)(7)-U, V05

Page1of4FCCID:2BCWN-RQZ-1 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. ExternalPhotos Photo1 Photo2 Page2of4FCCID:2BCWN-RQZ-1 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo3 Photo4 Page3of4FCCID:2BCWN-RQZ-1 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo5 Photo6 Page4of4FCCID:2BCWN-RQZ-1 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo7 Photo8 ------End------

FCCLabel W:15mm L:30mm BluetoothSpeakers ModelName:RQZ-1 FCCID:2BCWN-RQZ-1

Page1of12FCCID:2BCWN-RQZ-1 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. InternalPhotos Photo1 Photo2 Page2of12FCCID:2BCWN-RQZ-1 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo3 Photo4 Page3of12FCCID:2BCWN-RQZ-1 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo5 Photo6 Page4of12FCCID:2BCWN-RQZ-1 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo7 Photo8 Page5of12FCCID:2BCWN-RQZ-1 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo9 Photo10 Page6of12FCCID:2BCWN-RQZ-1 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo11 Photo12 Page7of12FCCID:2BCWN-RQZ-1 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo13 Photo14 Page8of12FCCID:2BCWN-RQZ-1 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo15 Photo16 Page9of12FCCID:2BCWN-RQZ-1 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo17 Photo18 Page10of12FCCID:2BCWN-RQZ-1 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo19 Photo20 Page11of12FCCID:2BCWN-RQZ-1 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo21 Photo22 Antenna Page12of12FCCID:2BCWN-RQZ-1 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo23 Photo24 ------End------

RFExposureevaluation FCCID:2BCWN-RQZ-1 1.1.ApplicableStandard Accordingto§1.1307(b)(1),systemsoperatingundertheprovisionsofthissectionshallbeoperatedina mannerthatensuresthatthepublicisnotexposedtoradiofrequencyenergylevelinexcessofthe Commission’sguidelines. Accordingto§1.1310and§2.1093RFexposurerequirement KDB447498v06:MobileandPortableDevicesRFExposureProceduresandEquipmentAuthorization Policies 1.2.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. Page2of2 1.3.Manufacturingtolerance BR-EDR Frequency (MHz) GFSK 240224412480 Target(dBm)3.2-0.22-3.07 Tolerance ± (dB) 1.01.01.0 Frequency (MHz) π/4DQPSK 240224412480 Target(dBm)3.47-0.34-3.10 Tolerance±(dB)1.01.01.0 Frequency (MHz) 8DPSK 240224412480 Target(dBm)3.42-0.28-3.13 Tolerance±(dB)1.01.01.0 BLE: Frequency (MHz) GFSK(BLE1M) 240224402480 Target(dBm)2.99-0.61-3.32 Tolerance±(dB)1.01.01.0 2.EvaluationResult EvaluationResults Band/Modef(GHz) Antenna Distance (mm) Max.RFoutputpower (includingtune-up tolerance) SARTest Exclusion Threshold SARTest Exclusion dBmmW BR-EDR2.554.472.800.89<3Yes BLE2.553.992.510.79<3Yes 3.Conclusion ThemeasurementresultscomplywiththeFCCLimitper47CFR2.1093fortheuncontrolledRFExposure andSARExclusionThresholdperKDB447498v06 .....................EndofReport.........................

Page1of36ReportNo.:AIT23091403FW2 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. TESTREPORT ClientInformation: Applicant:SignalSphereInformationTechnologyInc. Applicantadd.:228PARKAVES#78258NEWYORK,NY10003-1502 Manufacturer:SignalSphereInformationTechnologyInc. Manufactureradd.:228PARKAVES#78258NEWYORK,NY10003-1502 ProductInformation: ProductName:BluetoothSpeakers ModelNo:RQZ-1,RQZ-2,RQZ-3,RQZ-4,RQZ-5 BrandName:N/A FCCID:2BCWN-RQZ-1 Applicablestandards : FCCCFRTitle47Part15SubpartCSection15.247 PreparedBy: DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang,Huangjiang,Dongguan, Guangdong,China Tel.:+86-769-82020499Fax.:+86-769-82020495 DateofReceipt:Sep.14,2023DateofTest:Sep.14,2023~Sep.17,2023 DateofIssue:Sep.18,2023TestResult: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 Page2of36ReportNo.:AIT23091403FW2 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..............................................................................................................................7 4.3TestPeripheralList...............................................................................................................................7 4.4TESTMETHODOLOGY.......................................................................................................................8 4.4.1EUTConfiguration.............................................................................................................................8 4.4.2EUTExercise.....................................................................................................................................8 4.4.3GeneralTestProcedures..................................................................................................................8 4.5DescriptionofTestModes....................................................................................................................9 5EQUIPMENTUSEDDURINGTEST...............................................................................................................................10 6TESTRESULTSANDMEASUREMENTDATA..........................................................................................................11 6.1Antennarequirement..........................................................................................................................11 6.2OnTimeandDutyCycle....................................................................................................................12 6.3MaximumConductedOutputPowerMeasurement..........................................................................13 6.46dBSpectrumBandwidthMeasurement..........................................................................................15 6.599%OccupyBandwidth.....................................................................................................................16 6.6PowerSpectralDensity......................................................................................................................17 6.7ConductedSpuriousEmissionsandBandEdgesTest.....................................................................18 6.8Restrict-bandBand-edgeMeasurements..........................................................................................19 6.9RadiatedEmissionsMeasurement....................................................................................................22 6.10ConductedEmissions......................................................................................................................33 7TESTSETUPPHOTOGRAPHSOFEUT......................................................................................................................36 8EXTERNALPHOTOGRAPHSOFEUT......................................................…

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

1 F-type Bluetooth antenna specification 1. Antenna introduction The Bluetooth antenna is directly used on the PCB board. 2. Antenna shape 3. Antenna parameters The Bluetooth antenna operates at 2400-2500MHz, and resonates in this band. The following table shows the main parameters of the antenna. Frequency(MHz Bluetooth built-in antenna )2400~2500MHz VSWR≤1.92 Impedance50OhmNominal ReturnLoss-10dBMax 7.2mm 4.2mm 17.5mm 2 RadiationOmni-directional Gain(Peak) Polarizatio 0.640702dBi nLinear,Vertical AdmittedPower2W ConnectorTin SpectrumDetector:PKTestDate:June8,2013 TestBy:Andy Temperature:28°C TestResult:PASSHumidity 4. Antenna gain detection report :55% Modulation:GFSK FrequencyVNA SeparationReadSeparationLimit (MHz) ETotal.dBI 2400MHz0.0403503 2410MHz0.0886264 2420MHz0.267381 2430MHz0.193012 2440MHz0.26366 2450MHz0.0723139 2460MHz0.36895 2470MHz0.551525 2480MHz0.640702 2490MHz1.05232 2500MHz1.08443 3 Direction map: PHI 0° PHI 90° 4 THETA90° 5 Standing wave ratio chart: ProductDescription GSOU TECHNOLOGY(SHENZHEN)Co.,LTD. The EUT is a short range, lower power, Splash designed as a Device. It is designed by way of utilizing the GFSK, 1/4Π-DQPSK and 8DPSK modulation achieves the system operating. A major technical descriptions of EUT is described as following: A). Operation Frequency: 2400-2500MHz B). Modulation: GFSK, 1/4Π-DQPSK, 8DPSK C). Number of Channel: 79 D). Channel space: 1MHz E). RF Output power: 0.44dbm F). BIT Rate of Transmission: 1Mbps, 2Mbps, 3Mbps G). Antenna Type: PCB antenna H). Antenna Gain: 0. 6 40702dBi

DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23091403FW2 FCCID:2BCWN-RQZ-1 Page 1 of 24 AppendixB RFTestDataforBT(BLE)(ConductedMeasurement) ProductName:BluetoothSpeakers TradeMark:N/A TestModel:RQZ-1 EnvironmentalConditions Temperature: 25.8°C RelativeHumidity:52.4% ATMPressure:100.0kPa TestEngineer:SimbaHuang Supervisedby:SealChen DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23091403FW2 FCCID:2BCWN-RQZ-1 Page 2 of 24 Contents Page COVERPAGE 1DutyCycle........................................................................................................................................................................................3 1.1TestResult............................................................................................................................................................................3 1.2TestGraphs...........................................................................................................................................................................4 2MaximumConductedOutputPower.................................................................................................................................................6 2.1TestResult............................................................................................................................................................................6 2.2TestGraphs...........................................................................................................................................................................7 3-6dBBandwidth.................................................................................................................................................................................9 3.1TestResult............................................................................................................................................................................9 3.2TestGraphs.........................................................................................................................................................................10 4MaximumPowerSpectralDensityLevel.........................................................................................................................................12 4.1TestResult..........................................................................................................................................................................12 4.2TestGraphs.........................................................................................................................................................................13 5BandEdge......................................................................................................................................................................................15 5.1TestResult..........................................................................................................................................................................15 5.2TestGraphs.........................................................................................................................................................................16 6ConductedRFSpuriousEmission..................................................................................................................................................18 6.1TestResult..........................................................................................................................................................................18 6.2TestGraphs.........................................................................................................................................................................19 7RestrictBand..................................................................................................................................................................................22 7.1TestResult..........................................................................................................................................................................22 7.2TestGraphs.........................................................................................................................................................................23 DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23091403FW2 FCCID:2BCWN-RQZ-1 Page 3 of 24 1DutyCycle 1.1 TestResult ModeFrequency(MHz)DutyCycle(%)1/T(kHz) BLE1M240286.90.46 BLE1M244086.80.46 BLE1M248086.960.46 DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23091403FW2 FCCID:2BCWN-RQZ-1 Page 4 of 24 1.2 TestGraphs TestGraphs BLE1M2402MHz BLE1M2440MHz DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23091403FW2 FCCID:2BCWN-RQZ-1 Page 5 of 24 BLE1M2480MHz DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23091403FW2 FCCID:2BCWN-RQZ-1 Page 6 of 24 2MaximumConductedOutputPower 2.1 TestResult ModeFrequency(MHz)ConductedPower (dBm) Limit(dBm)Verdict BLE1M24022.9930Pass BLE1M2440-0.6130Pass BLE1M2480-3.3230Pass DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23091403FW2 FCCID:2BCWN-RQZ-1 Page 7 of 24 2.2 TestGraphs TestGraphs BLE1M2402MHz BLE1M2440MHz DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23091403FW2 FCCID:2BCWN-RQZ-1 Page 8 of 24 BLE1M2480MHz DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23091403FW2 FCCID:2BCWN-RQZ-1 Page 9 of 24 3-6dBBandwidth 3.1 TestResult ModeFrequency(MHz)-6dBBandwidth(MHz)Limit-6dBBandwidth(MHz)Verdict BLE1M24020.7390.5Pass BLE1M24400.6430.5Pass BLE1M24800.6560.5Pass DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23091403FW2 FCCID:2BCWN-RQZ-1 Page 10 of 24 3.2 TestGraphs TestGraphs BLE1M2402MHz BLE1M2440MHz DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23091403FW2 FCCID:2BCWN-RQZ-1 Page 11 of 24 BLE1M2480MHz DongguanYaxu(AiT)TechnologyLimited ReportNo.:AIT23091403FW2 FCCID:2BCWN-RQZ-1 Page 12 of 24 4MaximumPowerSpectralDensityLevel 4.1 TestResult ModeFrequency(MHz)ConductedPSD (dBm/3-10…

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

Page1of2FCCID:2BCWN-RQZ-1 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. TestSetupPhoto RadiatedEmission Page2of2FCCID:2BCWN-RQZ-1 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. ConductedEmission ------End------