2BDZJ-VG121wireless headphone

user's manual Product diagram •Product model: VG121 • •Version: V5.4+BLE Supportmode: a2dp\avctp\avdtp\avrcp\hfp\spp\smp\att\gap\gatt\ rfcomm\sdp\I2capprofile •Sensitivity: -90dBm • Signal distance: ≥10 meters (without any large obstaclesIn an ideal environment) • Battery specifications: headset 3.7V/30mAh, chargingbox ,3.7V/200mAh • Play time:about 4hours •Talk time:about 3hours • Standby time:about 60 hours • Charging time:charge the charging box for about 2 hours, give Charge the headset for about 1hour • Number of times the charging box charges the headset:6times for a single headset Functional operating instructions 1. power on Take the earphone out of the charging box and turn it on automatically; Auricular organ shape State, press and hold the earphone multi-function touch area for 3 seconds to power on. 2. Shut down Press and hold the multifunctional touch area for 5 seconds to turn off the headset, or put it on Auto matically shut down in the charging bin, charge the headphones, and the red indicator light is always on 3.Headphones are not connected to mobile phones for more than 5 minutes, and they are automatically turned off 4. Start up and connect back After the headset is taken out of the charging bin, it will be automatically turned on and paired, and automatically connected back to the mobile phone that was connected last time and turned on . 5. Pause/Play When the musi c is waiting to be played, press the multi-function touch area of the earphone cyclically to play/pause the music. 6. Switch songs/volume addition and subtraction/enable Siri In the music playing state, quickly double-click the right and quickly double-click the left earphone touch area earphone touch area to switch to the next song, Switch to the previous song Combo 3 right ear touch area - Volume reduced, Combo 3 left ear touch area - volume increased Press and hold the ea rphone touch area for 2 seconds to enable Siri function 7. Answer/refuse/hang up the call When the mobile phone calls, press the left/right earphone touch area briefly to answer the phone, and press it for 2 seconds to refuse to answer the phone; During a call, press the left/right earphone touch area briefly to hang up the call. 7. Low power prompt When the battery of headset is low, "Di du " will be prompted by voice, and the headset will be turned off when the battery is too low. Pairing operation Turn it off, and press the left and right earphone touch keys for 2 seconds to turn it on. When it is found that there is no light flashing while the red and blue lights flash alternately, it means that the earphone pairing is successful. Set on the mobile phone, check and search the corresponding earphone name, and click the earphone name to successfully pair with the mobile phone. Charging 1. Put the headset into the charging bin, and the headset will automatically charge and the red prompt light will stay on. When the headset is fully charged, the red prompt light will go out 2. Connect one end of the Type-C data to the 5V power adapter and the other end to the charging box to charge the charging box. When charging, the red light in the charging cabin is steady on, and the blue light is on for 10 seconds Matters needing attention 1. Please charge in a safe environment, and then charge the charging bin. In case of power-on, please put the charging bin after the display indicates full power. Disconnect from the charging cable, so as not to insert the charging pair for a long time Damage caused by charging compartment. 2. When playing music, please adjust the music to the appropriate volume Size, so as to avoid long-term listening in the state of high volume Into influence. 3. Try to avoid using this earphone in places with interference sources. Otherwise, it may affect the earphone signal. 4. Try to avoid using this earphone in corrosive environment. 5After startup, double-click either side of both ears to automatically switch between Chinese and English languages before connecting to the phone 合格证 QC PASS 检 型号： 质检员： 出厂日期： wireless headphone FCC Caution: 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.

2.911(d)(5)(i)EquipmentTypeAttestationv1.2 DongguanYandeElectronicTechnologyCo.,Ltd Section2.911(d)(5)(i)Certification–EquipmentType Companyname:DongguanYandeElectronicTechnologyCo.,Ltd Address:Room508,Building3,No.19JinpengRoad,FenggangTown,Dongguan City,GuangdongProvince,China ProductName:wirelessheadphone FCCID:2BDZJ-VG121 Model(s):VG121 2.911(d)(5)(i)EquipmentType We,[DongguanYandeElectronicTechnologyCo.,Ltd]certifythattheequipmentforwhich authorizationissoughtthroughcertificationisnot: Prohibitedfromreceivinganequipmentauthorizationpursuantto§2.903;oftheFCCrules. Identifiedasanequipmenttypeinthe“CoveredList” NOTE1 Yourssincerely, Name:shiguanliangDate:09-27-2024 TitleandCompanyname:manager/DongguanYandeElectronicTechnologyCo.,Ltd NOTE1 “CoveredList”;istheListofEquipmentandServicesCoveredBySection2ofTheSecureNetworksAct,availableat https://www.fcc.gov/supplychain/coveredlist References; 1)986446D01CoveredEquipmentv01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2)FederalRegisterdocument2022-28263publishedon02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

2.911(d)(5)(ii)ApplicantAttestationv1.3 DongguanYandeElectronicTechnologyCo.,Ltd Section2.911(d)(5)(ii)Certification–Applicant(CoveredList) Companyname:DongguanYandeElectronicTechnologyCo.,Ltd Address:Room508,Building3,No.19JinpengRoad,FenggangTown,Dongguan City,GuangdongProvince,China ProductName:wirelessheadphone FCCID:2BDZJ-VG121 Model(s):VG121 2.911(d)(5)(ii)Applicantfiling We,[DongguanYandeElectronicTechnologyCo.,Ltd]certifythat,asofthedateofthefilingof theapplication,theapplicantisnotidentified NOTE1 onthe“CoveredList” NOTE2 ,established pursuantto§1.50002ofthischapter,asanentityproducingcoveredcommunicationsequipment. Yourssincerely, Name:shiguanliangDate:09-27-2024 TitleandCompanyname:manager/DongguanYandeElectronicTechnologyCo.,Ltd NOTE1 Deleteoptionnotapplicabletothisapplication. NOTE2 “CoveredList”;istheListofEquipmentandServicesCoveredBySection2ofTheSecureNetworksAct,availableat https://www.fcc.gov/supplychain/coveredlist References; 1)986446D01CoveredEquipmentv01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2)FederalRegisterdocument2022-28263publishedon02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

DongguanYandeElectronicTechnologyCo.,Ltd OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USA Date:09-27-2024 Subject;RequestforConfidentiality FCCID:2BDZJ-VG121 ToWhomItMayConcern, PursuanttotheprovisionsoftheCommission’srulesTitle47Sections§0.457and§0.459,we arerequestingtheCommissiontowithholdthefollowingattachment(s)asconfidential documentsfrompublicdisclosureindefinitely. Thesedocumentscontaindetailedsystemandequipmentdescriptionsandareconsideredas proprietaryinformationinoperationoftheequipment.Thepublicdisclosureofthesedocuments mightbeharmfultoourcompanyandwouldgivecompetitorsanunfairadvantageinthemarket. SchematicDiagram BlockDiagram PartsList OperationalDescription Tune-upProcedure Inadditionaltoabovementioneddocuments,inordertocomplywiththemarketingregulations inTitle47CFR§2.803andtheimportationrulesinTitle47CFR§2.1204,whileensuringthat businesssensitiveinformationremainsconfidentialuntiltheactualmarketingofnewly authorizeddevices,werequestShortTermConfidentialityofthefollowingattachment(s); ExternalPhotos TestSetupPhotos InternalPhotos UserManual For45days,pursuanttoPublicNoticeDA04-1705. OR For180dayspursuanttoKDB726920D01. Itisourunderstandingthatallmeasurementtestreports,FCCIDlabelformatand correspondenceduringthecertificationreviewprocesscannotbegrantedasconfidential documentsandthisinformationwillbeavailableforpublicreviewoncethegrantofequipment authorizationisissued. Sincerely, Signature: Name:shiguanliang Title:manager

DongguanYandeElectronicTechnologyCo.,Ltd LetterofAuthorization Company:DongguanYandeElectronicTechnologyCo.,Ltd Address:Room508,Building3,No.19JinpengRoad,FenggangTown,Dongguan City,GuangdongProvince,China ProductName:wirelessheadphone ModelNumber(s):VG121 ProductDescription:wirelessheadphone WeauthorizeMiCOMLabsInc.,575BoulderCourt,Pleasanton,California94566,USA, toactonourbehalfonallmattersconcerningthecertificationofabovenamed equipment. WedeclarethatMiCOMLabsInc.isallowedtoforwardallinformationrelatedtothe approvalandcertificationofequipmenttotheregulatoryagenciesasrequiredandto discussanyissuesconcerningtheapprovalapplication.Anyandallactscarriedoutby MiCOMLabsonourbehalfshallhavethesameeffectasactsofourown. Signature:Date:09-27-2024 Name:shiguanliang Title:manager Company:DongguanYandeElectronicTechnologyCo.,Ltd

FCCID:2BDZJ-VG121 FCCID:2BDZJ-VG121 FCCID:2BDZJ-VG121 FCCID:2BDZJ-VG121

FCCID:2BDZJ-VG121 Label Size:10mm*8mm FCCID:2BDZJ-VG121 LabelLocation

FCCID:2BDZJ-VG121 FCCID:2BDZJ-VG121 FCCID:2BDZJ-VG121 ANT FCCID:2BDZJ-VG121

This product is an open Bluetooth headset, which includes Bluetooth IC (AC7023D2), touch button, crystal oscillator, MIC, battery and other components. 1. The charging part is 5V input by the charging copper column, and the lithium battery is charged by the 6th pin of the Bluetooth IC (AC7023D2), and the lithium battery supplies the Bluetooth IC by touching the button for power supply. 2. By touching the button, the headset can be switched on and off, and the volume can be increased or decreased.(Crystal:24M) 3. Bluetooth signals receive and transmit RF signals through the 11-pin antenna of Bluetooth IC (AC7023D2) to pair with other Bluetooth devices. The audio received by Bluetooth is output to the speaker through the differential 18~19 pin of the Bluetooth IC Model:VG121

RFExposureevaluation FCCID2BDZJ-VG121 ProductNamewirelessheadphone ModelNo.VG121 ListedModel(s)-- ExposurecategoryGeneralpopulation/uncontrolledenvironment EUTTypeProductionUnit DeviceTypePortableDevice 1.Reference ANSIC95.1–1999:IEEEStandardforSafetyLevelswithRespecttoHumanExposureto RadioFrequencyElectromagneticFields,3kHzto300GHz. FCCKDBpublication447498D01GeneralRFExposureGuidancev06:MobileandPortable DevicesRFExposureProceduresandEquipmentAuthorizationPolicies. FCCCFR47part11.1310:Radiofrequencyradiationexposurelimits. FCCCFR47part22.1093:Radiofrequencyradiationexposureevaluation:portabledevices 2.Requirement AccordingtoKDB447498D01GeneralRFExposureGuidancev06Section4.3.1Standalone SARtestexclusionconsiderations:“UnlessspecificallyrequiredbythepublishedRFexposure KDBprocedures,standalone1-gheadorbodyand10-gextremitySARevaluationforgeneral populationexposureconditions,bymeasurementornumericalsimulation,isnotrequired whenthecorrespondingSARTestExclusionThresholdcondition,listedbelow,issatisfied. Thesetestexclusionconditionsarebasedonsource-basedtime-averagedmaximum conductedoutputpoweroftheRFchannelrequiringevaluation,adjustedfortune-uptolerance, andtheminimumtestseparationdistancerequiredfortheexposureconditions.22The minimumtestseparationdistanceisdeterminedbythesmallestdistancefromtheantenna andradiatingstructuresoroutersurfaceofthedevice,accordingtothehostformfactor, exposureconditionsandplatformrequirements,toanypartofthebodyorextremityofauser orbystander(see5)ofsection4.1).ToqualifyforSARtestexclusion,thetestseparation distancesappliedmustbefullyexplainedandjustifiedbytheoperatingconfigurationsand exposureconditionsofthetransmitterandapplicablehostplatformrequirements,typicallyin theSARmeasurementorSARanalysisreport,accordingtotherequiredpublishedRF exposureKDBprocedures.WhennootherRFexposuretestingorreportingisrequired,a statementofjustificationandcompliancemustbeincludedintheequipmentapproval,inlieuof theSARreport,toqualifyfortheSARtestexclusion.Whenrequired,thedevicespecific conditionsdescribedintheotherpublishedRFexposureKDBproceduresmustbesatisfied beforeapplyingtheseSARtestexclusionprovisions;forexample,handheldPTTtwo-way radios,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≤50mm andfortransmissionfrequenciesbetween100MHzand6GHz.Whentheminimumtest separationdistanceis<5mm,adistanceof5mmaccordingto5)insection4.1isappliedto determineSARtestexclusion. Whenoneofthefollowingtestexclusionconditionsissatisfiedforallcombinationsof simultaneoustransmissionconfigurations,furtherequipmentapprovalisnotrequiredto incorporatetransmittermodulesinhostdevicesthatoperateinthemixedmobileandportable hostplatformexposureconditions.Thegranteeisresponsiblefordocumentingthisaccording toClassIpermissivechangerequirements.AntennasthatqualifyforstandaloneSARtest exclusionmustapplytheestimatedstandaloneSARtodeterminesimultaneoustransmission testexclusion. a)The[∑of(thehighestmeasuredorestimatedSARforeachstandaloneantenna configuration,adjustedformaximumtune-uptolerance)/1.6W/kg]+[∑ofMPEratios]is≤ 1.0. b)TheSARtopeaklocationseparationratiosofallsimultaneouslytransmittingantennapairs operatinginportabledeviceexposureconditionsareall≤0.04,andthe[∑ofMPEratios]is≤ 1.0. 3.ConductedPeakOutputPower Right: ModulationPacketTypeChannel PeakOutput Power (dBm) PeakOutput Power (mW) GFSK BLE1M 0-0.700.85 19-1.040.79 39-1.030.79 BLE2M 0-0.500.89 19-0.850.82 39-0.820.83 Left: ModulationPacketTypeChannel PeakOutput Power (dBm) PeakOutput Power (mW) GFSK BLE1M 0-0.830.83 19-1.260.75 39-1.160.77 BLE2M 0-0.560.88 19-0.860.82 39-0.760.84 4.ManufacturingTolerance Right： BLE ChannelChannel0Channel19Channel39 Target(dBm)0-1-1 Tolerance±(dB)1.01.01.0 BLE2M ChannelChannel0Channel19Channel39 Target(dBm)000 Tolerance±(dB)1.01.01.0 Left： BLE ChannelChannel0Channel19Channel39 Target(dBm)0-1-1 Tolerance±(dB)1.01.01.0 BLE2M ChannelChannel0Channel19Channel39 Target(dBm)000 Tolerance±(dB)1.01.01.0 5.EvaluationResult Band/Modef(GHz) Antenna Distance (mm) RFoutputpower SARTest Exclusion Threshold SARTest Exclusion dBmmW BLE2.48051 1.26 0.3965<3.0Yes Remark: 1.Outputpowerincludingtuneuptolerance; 2.Whentheminimumtestseparationdistanceis<5mm,adistanceof5mmaccordingtof)in section4.1isappliedtodetermineSARtestexclusion. 6.Conclusion ThemeasurementresultscomplywiththeFCCLimitper47CFR2.1093fortheuncontrolled RFExposureandSARExclusionThresholdperKDB447498v06. ------Endofthereport------

2.4GHz2012ChipAntenna:RANT2012F245C07 Dimension(mm) L2.05+-0.10 W1.20+-0.10 T0.65+-0.10 No.TerminalName 1Feeding/GNG 2GND Application: WLAN,802.11b/g,Bluetooth,WLAN,etc... Features SMD,highreliability,ultraImpact,Omni-directional... PartnumberInformation RANT2012F245C07 (A)(B)(C)(D)(E)(F) (A)ProductTypeChipAntenna (B)SizeCode2.0x1.2mm(+-0.2mm) (C)MaterialHighKmaterial (D)Frequency2.4~2.5GHz (E)FeedingmodePIFA&SingleFeeding (F)AntennatypeType=07 ElectricalSpecification WorkingFrequencyRange2400 ~2500MHz Bandwidth84(Min.) PeakGain1.7dBi(Typ.) Impedance50Ohm Returnloss10dB(Min) PolarizationLinear AzimuthBeamwidthOmni-directional OperationTemperature( °C )-40~85 °C ResistancetoSolderingHeats 10sec.(@280°C) TerminationNi/Au(Leadless) ThespecificationisdefinedonEVB. DimensionandTerminalConfiguration ManufacturerRAIN International Technology Co., Ltd. 2.4GHz2012ChipAntenna:RANT2012F245C07 EvaluationBoardReference PCBDimensionAntennaLayoutReferenceUnit:mm ElectricalCharacteristics ReturnLoss ReturnLoss&Radiation 1 Frequency(MHz) S11(dB) 2400-10.77 2450-24.81 -10.2425003 Radiation Z Y X Test Setup 2.4GHz 2012 Chip Antenna: RANT2012F245C07 2.4GHz2012ChipAntenna:RANT2012F245C07 TapingSpecifications ReelandTapingSpecification ReelSpecification TYPESIZEABCD 20127”5K/Reel 9.0±0.5 60±213.5±0.5178±2 TappingSpecification PackagingTypeABWEFGHTDP PaperType2012 1.50±0.202.30±0.208.0±0.201.75±0.103.5±0.054.0±0.102.0±0.050.75±0.101.57±0.104.0±0.1 2.4GHz2012ChipAntenna:RANT2012F245C07 ReliabilityTable 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 2.4GHz2012ChipAntenna:RANT2012F245C07 2.4GHz2012ChipAntenna:RANT2012F245C07 _ 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 12020/10/15NewDatasheet

ReportNo.:CISRR240911101 —1— AppendixA ReportNo.: CISRR240911101 FCCID: 2BDZJ-VG121 ProductName: wirelessheadphone ModelNo.:VG121 TestEngineer:JimmyHuang Supervisedby:RoryHuang ReportNo.:CISRR240911101 —2— 1)ConductedOutputPower Right: TestResult ModeChannel PeakOutputPower (dBm) PeakOutputPower (mW) Limit (dBm) Result BLE1M 0-0.700.85≤30PASS 19-1.040.79≤30PASS 39-1.030.79≤30PASS BLE2M 0-0.500.89≤30PASS 19-0.850.82≤30PASS 39-0.820.83≤30PASS TestGraphs PeakOutputPower BLE1M_Channel0 PeakOutputPower BLE1M_Channel19 PeakOutputPower BLE1M_Channel39 PeakOutputPower BLE2M_Channel0 ReportNo.:CISRR240911101 —3— PeakOutputPower BLE2M_Channel19 PeakOutputPower BLE2M_Channel39 Left: TestResult ModeChannel PeakOutputPower (dBm) PeakOutputPower (mW) Limit (dBm) Result BLE1M 0-0.830.83≤30PASS 19-1.260.75≤30PASS 39-1.160.77≤30PASS BLE2M 0-0.560.88≤30PASS 19-0.860.82≤30PASS 39-0.760.84≤30PASS TestGraphs PeakOutputPower BLE1M_Channel0 PeakOutputPower BLE1M_Channel19 ReportNo.:CISRR240911101 —4— PeakOutputPower BLE1M_Channel39 PeakOutputPower BLE2M_Channel0 PeakOutputPower BLE2M_Channel19 PeakOutputPower BLE2M_Channel39 ReportNo.:CISRR240911101 —5— 2)99%Bandwidth Right: TestResult ModeChannelCenterFrequency(MHz)99%BW(MHz) BLE1M024021.0320 BLE1M1924401.0290 BLE1M3924801.0320 BLE2M024022.0560 BLE2M1924402.0430 BLE2M3924802.0560 TestGraphs BLE1M_Channel0BLE2M_Channel0 BLE1M_Channel19BLE2M_Channel19 ReportNo.:CISRR240911101 —6— BLE1M_Channel39BLE2M_Channel39 Left: TestResult ModeChannelCenterFrequency(MHz)99%BW(MHz) BLE1M024021.0320 BLE1M1924401.0280 BLE1M3924801.0310 BLE2M024022.0610 BLE2M1924402.0510 BLE2M3924802.0500 TestGraphs BLE1M_Channel0BLE2M_Channel0 ReportNo.:CISRR240911101 —7— BLE1M_Channel19BLE2M_Channel19 BLE1M_Channel39BLE2M_Channel39 ReportNo.:CISRR240911101 —8— 3)6dBBandwidth Right: TestResult ModeChannel CenterFrequency (MHz) 6dBBandwidth (MHz) Limit (MHz) Result BLE1M 024020.6600 ≥0.5 PASS 1924400.6700PASS 3924800.6600PASS BLE2M 024021.150PASS 1924401.150PASS 3924801.150PASS TestGraphs BLE1M_Channel0BLE2M_Channel0 BLE1M_Channel19BLE2M_Channel19 ReportNo.:CISRR240911101 —9— BLE1M_Channel39BLE2M_Channel39 Left: TestResult ModeChannel CenterFrequency (MHz) 6dBBandwidth (MHz) Limit (MHz) Result BLE1M 024020.6600 ≥0.5 PASS 1924400.6700PASS 3924800.6600PASS BLE2M 024021.140PASS 1924401.150PASS 3924801.140PASS TestGraphs BLE1M_Channel0BLE2M_Channel0 ReportNo.:CISRR240911101 —10— BLE1M_Channel19BLE2M_Channel19 BLE1M_Channel39BLE2M_Channel39 ReportNo.:CISRR240911101 —11— 4)ConductedOutOfBandEmission Right: TestResult ModeChannel OOBEmission Frequency (MHz) OOBEmission Level (dBm) Limit (dBm) OverLimit (dB) Result BLE1M 0 2398.99-40.093-21.05-19.043PASS 2400.00-47.963-21.05-26.913PASS 9602.20-38.964-21.05-17.914PASS 199753.73-35.295-21.44-13.855PASS 39 2483.50-46.044-21.4-24.644PASS 9914.37-36.816-21.4-15.416PASS BLE2M 0 2400.00-32.116-21.35-10.766PASS 9602.25-39.110-21.35-17.760PASS 199753.73-34.889-21.81-13.079PASS 39 2483.50-49.359-21.67-27.689PASS 9914.37-36.561-21.67-14.891PASS TestGraphs In-BandReferenceLevel BLE1M_Channel0 In-BandReferenceLevel BLE2M_Channel0 ReportNo.:CISRR240911101 —12— OutOfBandEmission BLE1M_Channel0 OutOfBandEmission BLE2M_Channel0 30.0MHz-25000.0MHz BLE1M_Channel0 30.0MHz-25000.0MHz BLE2M_Channel0 In-BandReferenceLevel BLE1M_Channel19 In-BandReferenceLevel BLE2M_Channel19 30.0MHz-25000.0MHz BLE1M_Channel19 30.0MHz-25000.0MHz BLE2M_Channel19 ReportNo.:CISRR240911101 —13— In-BandReferenceLevel BLE1M_Channel39 In-BandReferenceLevel BLE2M_Channel39 OutOfBandEmission BLE1M_Channel39 OutOfBandEmission BLE2M_Channel39 30.0MHz-25000.0MHz BLE1M_Channel39 30.0MHz-25000.0MHz BLE2M_Channel39 ReportNo.:CISRR240911101 —14— Left: TestResult ModeChannel OOBEmission Frequency (MHz) OOBEmission Level (dBm) Limit (dBm) OverLimit (dB) Result BLE1M 0 2399.00-39.854-21.25-18.604PASS 2400.00-49.846-21.25-28.596PASS 9602.20-39.148-21.25-17.898PASS 199753.73-35.095-21.66-13.435PASS 39 2483.50-45.581-21.53-24.051PASS 9914.37-36.913-21.53-15.383PASS BLE2M 0 2400.00-32.267-21.4-10.867PASS 9602.25-38.738-21.4-17.338PASS 199753.73-35.106-21.81-13.296PASS 39 2483.50-50.126-21.6-28.526PASS 9914.37-36.651-21.6-15.051PASS TestGraphs In-BandReferenceLevel BLE1M_Channel0 In-BandReferenceLevel BLE2M_Channel0 OutOfBandEmission BLE1M_Channel0 OutOfBandEmission BLE2M_Channel0 ReportNo.:CISRR240911101 —15— 30.0MHz-25000.0MHz BLE1M_Channel0 30.0MHz-25000.0MHz BLE2M_Channel0 In-BandReferenceLevel BLE1M_Channel19 In-BandReferenceLevel BLE2M_Channel19 30.0MHz-25000.0MHz BLE1M_Channel19 30.0MHz-25000.0MHz BLE2M_Channel19 ReportNo.:CISRR240911101 —16— In-BandReferenceLevel BLE1M_Channel39 In-BandReferenceLevel BLE2M_Channel39 OutOfBandEmission BLE1M_Channel39 OutOfBandEmission BLE2M_Channel39 30.0MHz-25000.0MHz BLE1M_Channel39 30.0MHz-25000.0MHz BLE2M_Channel39 ReportNo.:CISRR240911101 —17— 5)DutyCycle Right: TestResult ModeChannelOnTime(ms)Period(ms)DutyCycle(%) DutyCycle (linear) DutyCycle Factor(dB) 1/T BLE1M 02.1332.49985.370.85370.6869 0.47 192.1332.49985.370.85370.6869 0.47 392.1332.49985.370.85370.6869 0.47 BLE2M 01.0812.50043.250.43253.64010.93 191.0812.50043.250.43253.64010.93 391.0812.49943.270.43273.63810.93 TestGraphs BLE1M_Channel0 ReportNo.:CISRR240911101 —18— BLE1M_Channel19 BLE1M_Channel39 ReportNo.:CISRR240911101 —19— BLE2M_Channel0 BLE2M_Channel19 ReportNo.:CISRR240911101 —20— BLE2M_Channel39 Left: TestResult ModeChannelOnTime(ms)Period(ms)DutyCycle(%) DutyCycle (linear) DutyCycle Factor(dB) 1/T BLE1M 02.1332.49985.370.85370.6869 0.47 192.1332.50085.330.85330.689 0.47 392.1332.49985.370.85370.68690.47 BLE2M 01.0812.49943.270.43273.63810.93 191.0812.49943.270.43273.63810.93 391.0812.49943.270.43273.6381 0.93 ReportNo.:CISRR240911101 —21— TestGraphs BLE1M_Channel0 BLE1M_Channel19 ReportNo.:CISRR240911101 —22— BLE1M_Channel39 BLE2M_Channel0 ReportNo.:CISRR240911101 —23— BLE2M_Channel19 BLE2M_Channel39 ReportNo.:CISRR240911101 —24— 6)PowerSpectralDensity Right: TestResult ModeChannelPSD(dBm/3kHz)Limit(dB…

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ReportNo.:CISRR240911101 Page:1of30 TESTREPORT ReportNo.:CISRR240911101 ProjectNo.CISR240911101 FCCID2BDZJ-VG121 Applicant:DongguanYandeElectronicTechnologyCo.,Ltd Address:Room508,Building3,No.19JinpengRoad,FenggangTown,Dongguan City,GuangdongProvince,China ManufacturerDongguanYandeElectronicTechnologyCo.,Ltd Address Room508,Building3,No.19JinpengRoad,FenggangTown,Dongguan City,GuangdongProvince,China ProductName:wirelessheadphone TradeMark:-- Model/Typereference:VG121 ListedModel(s):-- Standard:Part15SubpartCSection15.247 Testdate:September11,2024~September19,2024 IssuedateSeptember21,2024 Testresult:Complied Preparedby:RoryHuangApprovedby:GenryLong Thetestresultsrelateonlytothetestedsamples. ThetestreportshouldnotbereproducedexceptinfullwithoutthewrittenapprovalofShenzhenBangce TestingTechnologyCo.,Ltd. ReportNo.:CISRR240911101 Page:2of30 Contents 1.REPORTVERSION.........................................................................................................................................3 2.SUMMARYOFTESTRESULT.......................................................................................................................4 3.SUMMARY.....................................................................................................................................................5 3.1.ProductDescription....................................................................................................................................5 3.2.RadioSpecificationDescription................................................................................................................5 3.3.ModificationofEUT.....................................................................................................................................6 3.4.TestingSite...................................................................................................................................................6 3.5.FieldStrengthCalculation..........................................................................................................................6 3.6.DISTURBANCECalculation........................................................................................................................6 4.TESTCONFIGURATION.............................................................................................................................7 4.1.Testfrequencylist.......................................................................................................................................7 4.2.Testmode.....................................................................................................................................................7 4.3.Supportunitusedintestconfigurationandsystem...............................................................................7 4.4.Testsampleinformation.............................................................................................................................8 4.5.Testingenvironmentalcondition...............................................................................................................8 4.6.Statementofthemeasurementuncertainty.............................................................................................8 4.7.EquipmentUsedd…

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