2BB27-5598363577TWS Headset

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. (2)This device must accept any interference received, including interference that may cause undesired operation. 2.Changes or modifications not expressly approved by the party responsible for compliance could void the users 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 frequence 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 equipmemt 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: 1. Reorient or relocate the receiving antenna. 2. Increase the separation between the equipment and receiver. 3. Connect the equipment into an autlet on a circuit different from that to which the receiver is connected. 4. Consult the dealer or an experienced radio/TV technician for help.

AttestationStatements (2023-7-13) TO:Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046, USA RE: Attestation Statements Part 2.911(d)(7) request for (GC:2BB27) ( Foshan Heizuan Trading Co., Ltd ), the undersigned, hereby authorize (VISHTEC LLC) to act as our designated U.S. agent for service of process,( Foshan Heizuan Trading Co., Ltd ) accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. (VISHTEC LLC) accepts the responsibility to act as designated U.S. agent for service of process. Applicant Information： Company name:Foshan Heizuan Trading Co., Ltd Contact Name: suihao pang Address:One of the first floors of Building A, No. 8, Fengxiugang Industrial Zone, Bichong, Huangqi, Nanhai District, Foshan City Telephone No:18520203949 Email:[email protected] Signature [suihaopang] U.S.AgentInformation: CompanyName: VISHTECLLC Address: 9888WBelleviewAveSte2142DenverCO80123 FRN: 0033407131 ContactName: AlanGraham TelephoneNo:（571）4007350 Email: [email protected] Signature [AlanGraham]

Foshan He izuan Trading Co., Ltd 2023-07-12 EurofinsElectricalandElectronicTestingNA,Inc. 914WestPatapscoAvenue Baltimore,MD21230 RE:LETTEROFAGENTAUTHORIZATION ToWhomItMayConcern: We,theundersigned,herebyauthorizeDongGuanAnciElectronicTechnologyCo.,Ltd.toact onourbehalfinallmattersrelatingtoapplicationforequipmentauthorization,includingthe signingofalldocumentsrelatingtothesematters. Wealsoherebycertifythatnopartytotheapplicationauthorizedhereunderissubjecttothe denialofbenefits,includingFCCbenefits,pursuanttoSection5301oftheAnti-DrugAbuseAct of1988,21U.S.C.853(a). Thisagreementexpiresoneyearfromthecurrentdate. Sincerely, suihao pang Manager Foshan Heizuan Trading Co., Ltd One of the first floors of Building A, No. 8, Fengxiugang Industrial Zone, Bichong, Huangqi, Nanhai District, Foshan City

Fos han Heizuan Trading Co. , Ltd 2023-07-12 EurofinsElectricalandElectronicTestingNA,Inc. 914WestPatapscoAvenue Baltimore,MD21230 RE:CONFIDENTIALITYREQUESTFOR(EUTName:TWSHeadset /Model:5598363577，3C001,3C002,3C003,3C004/FCCID:2BB27-5598363577) ToWhomItMayConcern: Thisletterservesasanofficialrequestforconfidentialityundersections0.457and0.459 ofCFR47.Wehaverequestedthatthe(BlockDiagram,OperationalDescription,Schematics，) requiredtobesubmittedwiththisapplicationbepermanentlywithheldfrompublic review. Theabovematerialscontaintradesecretsandproprietaryinformationnotcustomarilyreleasedtothepublic.The publicdisclosureofthesematerialsmaybeharmfultotheapplicantandprovideunjustifiedbenefitstoitscompetitors. Pleasecontactmeifthereisanyinformationyoumayneed. Sincerely, suihao pang Manager Foshan Heizuan Trading Co., Ltd One of the first floors of Building A, No. 8, Fengxiugang Industrial Zone, Bichong, Huangqi, Nanhai District, Foshan City

FCCID:2BB27-5598363577

Antenna

RFEXPOSUREEVALUATION EUTSpecification EUTTWSHeadset ModelNumber5598363577 FCCID2BB27-5598363577 Antennagain(Max)1.24dBi OperationFrequency2402-2480MHz InputRating DC5V ClassificationPer StipulatedTestStandard §15.247(i),§2.1093 Modulation GFSK, π /4-DQPSK,8DPSK Max.outputpower3.82dBm(0.0024W) TestRequirement: Accordingto§15.247(i)and§1.1307(b)(1),systemsoperatingunderthe provisionsofthissectionshallbeoperatedinamannerthatensuresthatthe publicisnotexposedtoradiofrequencyenergylevelinexcessofthe Commission’sguidelines. RoutineSARevaluationreferstothatspecificallyrequiredby§2.1093,using measurementsorcomputersimulation.WhenroutineSARevaluationisnot required,portabletransmitterswithoutputpowergreaterthantheapplicable lowthresholdrequireSARevaluationtoqualityforTCBapproval. OneantennaisavailablefortheEUT.Theminimumseparationdistanceis 5mm. BR+EDR: AccordingtoKDB447498,nostand-alonerequiredforBTantenna,andno simultaneousSARmeasurementisrequired. Signature: TigerXu Date:2023-07-11 Transmit Frequency (MHz) Mode Measured Power (dBm) Tune up Power (dBm) Maxtune up power(dBm) Calculation Result 1-g SAR 2402GFSK1.682±130.6184673 2441GFSK2.282±130.6234673 2480GFSK2.773±140.7911443 2402Π/4-DQPSK2.573±140.7786043 2441Π/4-DQPSK3.163±140.7848993 2480Π/4-DQPSK3.604±150.9959923 24028DPSK2.693±140.7786043 24418DPSK3.353±140.7848993 24808DPSK3.824±150.9959923

2.4GHz 3216 Chip Antenna: RANT3216F245X02 _ Application: WLAN,802.11b/g,Bluetooth,WLAN,etc... Features SMD,highreliability,ultraImpact,Omni-directional... PartnumberInformation RANT3216F245X02 (A)(B)(C)(D)(E)(F) ElectricalSpecification ThespecificationisdefinedonEVB. DimensionandTerminalConfiguration No.TerminalName 1Feeding/GNG 2GND/Feeding (A)ProductTypeChipAntenna (B)SizeCode 3.2x1.6mm( ± 0.2mm) (C)MaterialHighKmaterial (D)Frequency2.4~2.5GHz (E)FeedingmodePIFA&SingleFeeding (F)AntennatypeType=01 WorkingFrequencyRange2400~2500MHz Bandwidth120MHz(Min.) PeakGaindBi(Typ.1.24) Impedance50Ohm Returnloss10dB(Min) PolarizationLinear AzimuthBeamwidthOmni-directional OperationTemperature(°C)-40~85°C ResistancetoSolderingHeats 10sec.(@280°C) TerminationNi/Au(Leadless) Dimension(mm) L 3.20±0.20 W 1.60±0.20 T 0.45±0.20 咏成國際科技有限公司電話 :13530576606 RAINInternationalTechnologyCo.,Ltd. TEL:13530576606 2.4GHz 3216 Chip Antenna: RANT3216F245X02 _ 1 EvaluationBoardReference PCBDimensionAntennaLayoutReference Unit:mm ElectricalCharacteristics ReturnLoss&Radiation ReturnLoss Frequency(MHz) S11(dB) 2400-10.50 2450-30.62 2500-11.47 Radiation 2400MHz2450MHz2500MHz Efficiency82.52%85.26%83.01% PeakGain1.15dBi1.24dBi1.19dBi Directivity1.89dBi1.97dBi1.91dBi X Y Z 2400MHz 2450MHz 2500MHz 2.4GHz 3216 Chip Antenna: RANT3216F245X02 _ TapingSpecifications ReelandTapingSpecification ReelSpecification TYPESIZEABCD 32167”5K/Reel 9.0±0.5 60±213.5±0.5178±2 TappingSpecification PackagingTypeABWEFGHTψDP PaperType3216 1.90±0.203.50±0.208.0±0.201.75±0.103.5±0.054.0±0.102.0±0.050.75±0.10 1.50±0.10 4.0±0.1 2.4GHz 3216 Chip Antenna: RANT3216F245X02 Reliability Table _ TestItemProcedure Requirements CeramicType Remark (Reference) Electrical Characterization Fulfilltheelectrical specification UserSpec. Thermal Shock 1.Preconditioning: 50±10°C/1hr,thenkeepfor24±1hrsatroomtemp. 2.Initialmeasure:Spec:referInitialspec. 3.Rapidchangeoftemperaturetest: -30°Cto+85°C;100cycles; 15minutesatLowercategorytemperature; 15minutesatUppercategorytemperature. NoVisibleDamage. Fulfilltheelectrical specification. MIL-STD-202 107 Temperature Cycling 1.Initialmeasure:Spec:referInitialspec. 2.100Cycles(-30°Cto+85°C),SoakMode=1(2Cycle/hours). 3.Measurementat24±2Hoursaftertestcondition. NoVisibleDamage. Fulfilltheelectrical specification. JESD22 JA104 HighTemperature Exposure 1.Initialmeasure:Spec:referInitialspec. 2.Unpowered;500hours@T=+85°C. 3.Measurementat24±2hoursaftertest. NoVisibleDamage. Fulfilltheelectrical specification. MIL-STD-202 108 LowTemperature Storage 1.Initialmeasure:Spec:referInitialspec. 2.Unpowered:500hours@T=-30°C. 3.Measurementat24±2hoursaftertest. NoVisibleDamage. Fulfilltheelectrical specification. MIL-STD-202 108 Solderability (SMDBottomSide) Dippingmethod: a.Temperature:235±5°C b.Dippingtime:3±0.5s Thesoldershouldcover over95%ofthecritical areaofbottomside. IEC60384-21/22 4.10 SolderingHeat Resistance (RSH) Preheatingtemperature:150±10°C. Preheatingtime:1~2min. Soldertemperature:260±5°C. Dippingtime:5±0.5s NoVisibleDamage.IEC60384-21/22 4.10 Vibration5g'sfor20min.,12cycleseachof3orientations Note:Use8"X5"PCB.031"thick7securepointson,onelong sideand2securepointsatcornersofoppositesides.Parts mountedwithin2"fromanysecurepoint.Testfrom10-2000 Hz. NoVisibleDamage.MIL-STD-202 Method204 Mechanical Shock Threeshocksineachdirectionshallbeappliedalongthethree mutuallyperpendicularaxesofthetestspecimen(18shocks) Peakvalue:1,500g’s Duration:0.5ms Velocitychange:15.4ft/s Waveform:Half-sine NoVisibleDamage.MIL-STD-202 Method213 Humidity Bias 1.Humidity:85%R.H.,Temperature:85±2°C. 2.Time:500±24hours. 3.Measurementat24±2hrsaftertestcondition. NoVisibleDamage. Fulfilltheelectrical specification. MIL-STD-202 Method106 2.4GHz 3216 Chip Antenna: RANT3216F245X02 _ Board Flex (SMD) 1.Mountingmethod: IR-Reflow.PCBSize(L:100×W:40×T:1.6mm) 2.Applytheloadindirectionofthearrowuntilbendingreaches 2mm. NoVisibleDamage.AEC-Q200 005 AdhesionForceof1.8Kgfor60seconds.NoVisibleDamage Magnificationof20Xor greatermaybeemployed forinspectionofthe mechanicalintegrityofthe devicebodyterminalsand body/terminaljunction. AEC-Q200 006 Physical Dimension Anyapplicablemethodusingx10magnification,micrometers, calipers,gauges,contourprojectors,orothermeasuring equipment,capableofdeterminingtheactualspecimen dimensions. Inaccordancewith specification. JESD22 JB100 RevisionHistory RevisionDateContent 12019/03/01NewDatasheet 22021/02/22Add2Dradiationcharacteristic

AppendixA 7.1MaximumConductedOutputPower ConditionModeFrequency(MHz)AntennaConductedPower(dBm)DutyFactor(dB)TotalPower(dBm)Limit(dBm)Verdict NVNT1-DH52402Ant11.6801.6821Pass NVNT1-DH52441Ant12.2802.2821Pass NVNT1-DH52480Ant12.7702.7721Pass NVNT2-DH52402Ant12.5702.5721Pass NVNT2-DH52441Ant13.1603.1621Pass NVNT2-DH52480Ant13.603.621Pass NVNT3-DH52402Ant12.6902.6921Pass NVNT3-DH52441Ant13.3503.3521Pass NVNT3-DH52480Ant13.8203.8221Pass TestGraphs PowerNVNT1-DH52402MHzAnt1 PowerNVNT1-DH52441MHzAnt1 PowerNVNT1-DH52480MHzAnt1 PowerNVNT2-DH52402MHzAnt1 PowerNVNT2-DH52441MHzAnt1 PowerNVNT2-DH52480MHzAnt1 PowerNVNT3-DH52402MHzAnt1 PowerNVNT3-DH52441MHzAnt1 PowerNVNT3-DH52480MHzAnt1 7.220dBBandwidth ConditionModeFrequency(MHz)Antenna-20dBBandwidth(MHz)Limit-20dBBandwidth(MHz)Verdict NVNT1-DH52402Ant11.0040Pass NVNT1-DH52441Ant11.0180Pass NVNT1-DH52480Ant11.0250Pass NVNT2-DH52402Ant11.3110Pass NVNT2-DH52441Ant11.2820Pass NVNT2-DH52480Ant11.2880Pass NVNT3-DH52402Ant11.2830Pass NVNT3-DH52441Ant11.2560Pass NVNT3-DH52480Ant11.2830Pass TestGraphs -20dBBandwidthNVNT1-DH52402MHzAnt1 -20dBBandwidthNVNT1-DH52441MHzAnt1 -20dBBandwidthNVNT1-DH52480MHzAnt1 -20dBBandwidthNVNT2-DH52402MHzAnt1 -20dBBandwidthNVNT2-DH52441MHzAnt1 -20dBBandwidthNVNT2-DH52480MHzAnt1 -20dBBandwidthNVNT3-DH52402MHzAnt1 -20dBBandwidthNVNT3-DH52441MHzAnt1 -20dBBandwidthNVNT3-DH52480MHzAnt1 7.3CarrierFrequenciesSeparation ConditionModeAntennaHoppingFreq1(MHz)HoppingFreq2(MHz)HFS(MHz)Limit(MHz)Verdict NVNT1-DH5Ant12401.972402.9861.0160.669Pass NVNT1-DH5Ant12441.0522441.9740.9220.679Pass NVNT1-DH5Ant12479.0522480.0541.0020.683Pass NVNT2-DH5Ant12401.842402.9841.1440.025Pass NVNT2-DH5Ant12440.842441.8280.9880.025Pass NVNT2-DH5Ant12478.8242479.9981.1740.025Pass NVNT3-DH5Ant12401.9882402.98810.855Pass NVNT3-DH5Ant12440.9882441.8320.8440.837Pass NVNT3-DH5Ant12478.8282479.841.0120.855Pass TestGraphs CFSNVNT1-DH52402MHzAnt1 CFSNVNT1-DH52441MHzAnt1 CFSNVNT1-DH52480MHzAnt1 CFSNVNT2-DH52402MHzAnt1 CFSNVNT2-DH52441MHzAnt1 CFSNVNT2-DH52480MHzAnt1 CFSNVNT3-DH52402MHzAnt1 CFSNVNT3-DH52441MHzAnt1 CFSNVNT3-DH52480MHzAnt1 7.4NumberofHoppingChannel ConditionModeAntennaHoppingNumberLimitVerdict NVNT1-DH5Ant17915Pass NVNT2-DH5Ant17915Pass NVNT3-DH5Ant17915Pass TestGraphs HoppingNo.NVNT1-DH52402MHzAnt1 HoppingNo.NVNT2-DH52402MHzAnt1 HoppingNo.NVNT3-DH52402MHzAnt1 7.5DwellTime ConditionModeFrequency(MHz)AntennaPulseTime(ms)TotalDwellTime(ms)BurstCountPeriodTime(ms)Limit(ms)Verdict NVNT1-DH52402Ant12.886331.8911531600400Pass NVNT1-DH52441Ant12.886274.179531600400Pass NVNT1-DH52480Ant12.887317.5711031600400Pass NVNT2-DH52402Ant12.892274.749531600400Pass NVNT2-DH52441Ant12.891312.22810831600400Pass NVNT2-DH52480Ant12.892309.44410731600400Pass NVNT3-DH52402Ant10.89590.39510131600400Pass NVNT3-DH52441Ant10.89596.6610831600400Pass NVNT3-DH52480Ant10.89690.49610131600400Pass TestGraphs DwellNVNT1-DH52402MHzAnt1OneBurst DwellNVNT1-DH52402MHzAnt1Accumulated DwellNVNT1-DH52441MHzAnt1OneBurst DwellNVNT1-DH52441MHzAnt1Accumulated DwellNVNT1-DH52480MHzAnt1OneBurst DwellNVNT1-DH52480MHzAnt1Accumulated DwellNVNT2-DH52402MHzAnt1OneBurst DwellNVNT2-DH52402MHzAnt1Accumulated DwellNVNT2-DH52441MHzAnt1OneBurst DwellNVNT2-DH52441MHzAnt1Accumulated DwellNVNT2-DH52480MHzAnt1OneBurst DwellNVNT2-DH52480MHzAnt1Accumulated DwellNVNT3-DH52402MHzAnt1OneBurst DwellNVNT3-DH52402MHzAnt1Accumulated DwellNVNT3-DH52441MHzAnt1OneBurst DwellNVNT3-DH52441MHzAnt1Accumulated DwellNVNT3-DH52480MHzAnt1OneBurst DwellNVNT3-DH52480MHzAnt1Accumulated 7.6BandEdge ConditionModeFrequency(MHz)AntennaHoppingModeMaxValue(dBc)Limit(dBc)Verdict NVNT1-DH52402Ant1No-Hopping-52.59-20Pass NVNT1-DH52480Ant1No-Hopping-53.56-20Pass NVNT2-DH52402Ant1No-Hopping-50.78-20Pass NVNT2-DH52480Ant1No-Hopping-54.21-20Pass NVNT3-DH52402Ant1No-Hopping-52.61-20Pass NVNT3-DH52480Ant1No-Hopping-54.4-20Pass TestGraphs BandEdgeNVNT1-DH52402MHzAnt1No-HoppingRef BandEdgeNVNT1-DH52402MHzAnt1No-HoppingEmission BandEdgeNVNT1-DH52480MHzAnt1No-HoppingRef BandEdgeNVNT1-DH52480MHzAnt1No-HoppingEmission BandEdgeNVNT2-DH52402MHzAnt1No-HoppingRef BandEdgeNVNT2-DH52402MHzAnt1No-HoppingEmission BandEdgeNVNT2-DH52480MHzAnt1No-HoppingRef BandEdgeNVNT2-DH52480MHzAnt1No-HoppingEmission BandEdgeNVNT3-DH52402MHzAnt1No-HoppingRef BandEdgeNVNT3-DH52402MHzAnt1No-HoppingEmission BandEdgeNVNT3-DH52480MHzAnt1No-HoppingRef BandEdgeNVNT3-DH52480MHzAnt1No-HoppingEmission BandEdge(Hopping) ConditionModeFrequency(MHz)AntennaHoppingModeMaxValue(dBc)Limit(dBc)Verdict NVNT1-DH52402Ant1Hopping-50.41-20Pass NVNT1-DH52480Ant1Hopping-51.19-20Pass NVNT2-DH52402Ant1Hopping-50.34-20Pass NVNT2-DH52480Ant1Hopping-50.95-20Pass NVNT3-DH52402Ant1Hopping-52.31-20Pass NVNT3-DH52480Ant1Hopping-53.66-20Pass TestGraphs BandEdge(Hopping)NVNT1-DH52402MHzAnt1HoppingRef BandEdge(Hopping)NVNT1-DH52402MHzAnt1HoppingEmission BandEdge(Hopping)NVNT1-DH52480MHzAnt1HoppingRef BandEdge(Hopping)NVNT1-DH52480MHzAnt1HoppingEmission BandEdge(Hopping)NVNT2-DH52402MHzAnt1HoppingRef BandEdge(Hopping)NVNT2-DH52402MHzAnt1HoppingEmission BandEdge(Hopping)NVNT2-DH52480MHzAnt1HoppingRef BandEdge(Hopping)NVNT2-DH52480MHzAnt1HoppingEmission BandEdge(Hopping)NVNT3-DH52402MHzAnt1HoppingRef BandEdge(Hopping)NVNT3-DH52402MHzAnt1HoppingEmission BandEdge(Hopping)NVNT3-DH52480MHzAnt1HoppingRef BandEdge(Hopping)NVNT3-DH52480MHzAnt1HoppingEmission ConductedRFSpuriousEmission ConditionModeFrequency(MHz)AntennaMaxValue(dBc)Limit(dBc)Verdict NVNT1-DH52402Ant1-46.36-20Pass NVNT1-DH52441Ant1-48.02-20Pass NVNT1-DH52480Ant1-47.32-20Pass NVNT2-DH52402Ant1-51.15-20Pass NVNT2-DH52441Ant1-51.62-20Pass NVNT2-DH52480Ant1-50.83-20Pass NVNT3-DH52402Ant1-49.86-20Pass NVNT3-DH52441Ant1-52.42-20Pass NVNT3-DH52480Ant1-51.64-20Pass TestGraphs Tx.SpuriousNVNT1-DH52402MHzAnt1Ref Tx.SpuriousNVNT1-DH52402MHzAnt1Emission Tx.SpuriousNVNT1-DH52441MHzAnt1Ref Tx.SpuriousNVNT1-DH52441MHzAnt1Emission Tx.SpuriousNVNT1-DH52480MHzAnt1Ref Tx.SpuriousNVNT1-DH52480MHzAnt1Emission Tx.SpuriousNVNT2-DH52402MHzAnt1Ref Tx.SpuriousNVNT2-DH52402MHzAnt1Emission

TRFNo.:01-R001-3ATRFOriginator:GTGTRFDate:2022-06-29 Web:www.gtggroup.comE-mail:[email protected].:86-4007558988 CFR47FCCPART15SUBPARTC(DSS) TESTREPORT For TWSHeadset MODELNUMBER:5598363577 REPORTNUMBER:E01A23060340F00101 ISSUEDATE:Jul11,2023 FCCID:2BB27-5598363577 Preparedfor FoshanHeizuanTradingCo.,Ltd OneofthefirstfloorsofBuildingA,No.8,FengxiugangIndustrialZone,Bichong, Huangqi,NanhaiDistrict,FoshanCity Preparedby DongGuanAnciElectronicTechnologyCo.,Ltd. 1-2Floor,BuildingA,No.11,Headquarters2Road,Songshan,LakeHi- techIndustrialDevelopmentZone,DongguanCity,GuangdongPr., China. Thisreportshallnotbereproduced,exceptinfull,withoutthewrittenapprovalof DongGuanAnciElectronicTechnologyCo.,Ltd. REPORTNO.:E01A23060340F00101 Page2of62 TRFNo.:01-R001-3AGlobalTesting,GreatQuality. RevisionHistory Rev.IssueDate RevisionsRevisedBy V0Jul11,2023 InitialIssueDuke REPORTNO.:E01A23060340F00101 Page3of62 TRFNo.:01-R001-3AGlobalTesting,GreatQuality. SummaryofTestResults SummaryofTestResults TestItemClauseLimit/RequirementResult Antenna Requirement N/AFCCPart15.203/15.247(c)Pass ACPowerLine ConductedEmission ANSIC63.10-2013Clause 6.2 FCCPart15.207Pass ConductedOutput Power ANSIC63.10-2013Clause 7.8.5 FCCPart15.247(b)(1)Pass 20dBBandwidth and99%Occupied Bandwidth ANSIC63.10-2013Clause 6.9.2 FCCPart15.247(a)(1)Pass CarrierHopping ChannelSeparation ANSIC63.10-2013Clause 7.8.2 FCCPart15.247(a)(1)Pass NumberofHopping Frequency ANSIC63.10-2013Clause 7.8.3 FCCPart15.247(b)(1)Pass TimeofOccupancy (DwellTime) ANSIC63.10-2013Clause 7.8.4 FCCPart15.247(a)(1)Pass Conducted Bandedgeand SpuriousEmission ANSIC63.10-2013Clause 6.10.4&Clause7.8.8 FCCPart15.247(d)Pass RadiatedBandedge andSpurious Emission ANSIC63.10-2013Clause 6.3&6.5&6.6 FCCPart15.205/15.209Pass DutyCycle ANSIC63.10-2013,Clause 11.6 None;forreportingpurposesonly.Pass *Themeasurementresultforthesamplereceivedis<Pass>accordingto<CFR47FCCPART 15SUBPARTC(DSS)>when<AccuracyMethod>decisionruleisapplied. REPORTNO.:E01A23060340F00101 Page4of62 TRFNo.:01-R001-3AGlobalTesting,GreatQuality. CONTENTS 1.ATTESTATIONOFTESTRESULTS........................................................................................5 2.TESTMETHODOLOGY............................................................................................................6 3.FACILITIESANDACCREDITATION........................................................................................6 4.CALIBRATIONANDUNCERTAINTY......................................................................................7 4.1.MEASURINGINSTRUMENTCALIBRATION.............................................................7 4.2.MEASUREMENTUNCERTAINTY...............................................................................7 5.EQUIPMENTUNDERTEST......................................................................................................8 5.1.DESCRIPTIONOFEUT...............................................................................................8 5.2.CHANNELLIST............................................................................................................8 5.3.MAXIMUMAVERAGEEIRP........................................................................................9 5.4.TESTCHANNELCONFIGURATION...........................................................................9 5.5.THEWORSECASEPOWERSETTINGPARAMETER.............................................9 5.6.DESCRIPTIONOFAVAILABLEANTENNAS...........................................................10 5.7.SUPPORTUNITSFORSYSTEMTEST...................................................................10 5.8.SETUPDIAGRAM......................................................................................................11 6.MEASURINGEQUIPMENTANDSOFTWAREUSED..........................................................12 7.ANTENNAPORTTESTRESULTS........................................................................................14 7.1.ConductedOutputPower..........................................................................................14 7.2.20dBBandwidth........................................................................................................15 7.3.CarrierHoppingChannelSeparation.........................................................................16 7.4.NumberofHoppingFrequency..................................................................................17 7.5.TimeofOccupancy(DwellTime)...............................................................................18 7.6.ConductedBandedgeandSpuriousEmission..........................................................20 7.7.DutyCycle..................................................................................................................22 8.RADIATEDTESTRESULTS..................................................................................................23 9.ANTENNAREQUIREMENT....................................................................................................39 10.ACPOWERLINECONDUCTEDEMISSION...........................................................40 11.TESTDATA................................................................................................................43 APPENDIX:PHOTOGRAPHSOFTESTCONFIGURATION.......................................................44 APPENDIX:PHOTOGRAPHSOFTHEEUT.................................................................................46 REPORTNO.:E01A23060340F00101 Page5of62 TRFNo.:01-R001-3AGlobalTesting,GreatQuality. 1.ATTESTATIONOFTESTRESULTS ApplicantInformation CompanyName:FoshanHeizuanTradingCo.,Ltd Address:OneofthefirstfloorsofBuildingA,No.8,FengxiugangIndustrial Zone,Bichong,Huangqi,NanhaiDistrict,FoshanCity ManufacturerInformation CompanyName:FoshanHeizuanTradingCo.,Ltd Address:OneofthefirstfloorsofBuildingA,No.8,FengxiugangIndustrial Zone,Bichong,Huangqi,NanhaiDistrict,FoshanCity EUTInformation EUTName:TWSHeadset Model:5598363577 Brand:N/A SampleReceivedDate:Jul03,2023 SampleStatus:Normal SampleID:A23…

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