2A264-L50Bluetooth earphone

蓝牙版本双模V5.0+EDR 支持协议 A2DP1.3/HFP1.6/HSP1.2/AVRCP1.6/D11.3 蓝牙使用频率 2.4G 电池容量耳机50mAH，充电仓300mAH 蓝牙距离 10-15M 播放/通话时间单耳播放/通话时间约：4小时 按键功能 开机长按功能按键3秒 播放/暂停短按功能按键 上一曲双击副机 下一曲双击主机 加声音三击主机 减声音三击副机 语音助手长按功能按键2秒松手 切换中英文在配对状态中双击功能按键切换中英文提示音 使用说明 蓝牙配对 充电仓拿起自动开机，开机后主副机自动配对，配对成 功后主机红蓝交替闪副机蓝灯慢闪。此时手机搜索蓝牙 名称连接。 充电 耳机报警低电提示音后放入充电仓充电，充电回自动关 机，充电时红灯长亮，充满电后灯灭。 接听电话来电时短按功能键接听电话，再次短按挂掉电话。 注意事项 1.请不要使用暴力对待本产品，也不要用重物挤压，远离高温高湿环境。 2.远高WIFI路由器及其它高频发射设备，这样会影响本机的信号接收，造成声音的 卡断及断连。 3.请在用效环境(10米)中使用本产品，并且蓝牙设备与耳机之间不要有实体阻挡(例 如墙等) 无线双耳立体声音乐耳机 V5.0+EDR TWS-L21说明书 TWS(truewirelessstereo)earphones V5.0+EDR TWS-L21Manual BluetoothversionV5.0+EDR BluetoothprotocolA2DP1.3/HFP1.6/HSP1.2/AVRCP1.6/D11.3 BluetoothFrequency2.4GHZ BatterycapacityTheheadset50mah.300mahrechargeablestorehouse BluetoothRange10-15metesrswithnoobstacles Talk/playtime Singleearbudmode:4hoursOnepairearbudsmode:3hours KeyFunctions PoweronLongpressthefunctionbuttonfor3seconds Play/PlaypausePressthefunctionbutton PreviouspieceDouble-clickthevicemachine NexttrackDouble-clickonthehost AddvoiceThreestrikesthehost SoundreductionThreepairofmachine SIRILongpressthefunctionbuttonfor2seconds SwitchChineseandEnglish Inthepairingstate,double-clickthefunctionbuttontoswitch theprompttoneinChineseandEnglis Instructions Bluetoothpairing Pickupthechargingbinandstartupautomatically.After startingup,themainandsecondaryengineswillpairup automatically.Aftersuccessfulpairing,thehostmachinewill flashredandbluealternately.Thistimethephonesearch bluetoothnameconnection. Charging Aftertheearphonealarmlowpoweralarmsound,itisputinto thechargingbinforcharging.Aftercharging,itis automaticallyturnedoff.Whencharging,theredlightislong andthelampisoffwhenitisfullycharged. AnswercallsWhencalling,pressthefunctionbuttontoanswerthecalland thenpressthebuttonagaintohangupthecall. 1.Pleasedonotoverusethisearphoneorputitunderheavypressure,keepawayfromwetand heat. 2.Far-highWIFIrouterandotherhigh-frequencytransmittingequipmentwillaffectthesignal receptionoftheunit,resultinginthesoundcardbreakinganddisconnection. 3.Pleaseusethisproductintheworkingenvironment(10m),andthereshouldbenophysical barriers(suchaswall,etc.)betweenthebluetoothdeviceandtheheadset. 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

ShenzhenLanxinTechnologyCo.LTD ModelDifference Productdescription:Bluetoothearphone Modelname:L50 L12,L13,L22pro,L31pro,T11,T15,T18,L51,L52ANC,L53,L60,L61,L62,L63 TradeName:N/A FCCID:2A264-L50 AllthemodelarethesamecircuitandRFmodule,onlyformodelname. Regards Sincerely Client’ssignature: Client’sname/title:Jackzhou Contactinformation/address:ZoneB,7thFloor,BuildingB1,HuafengCenturyScience AndTechnologyPark,HangchengAvenueXixiangstreet,BaoanDistrict,Shenzhen

C5266091_X8_Ed.1 1/1 LetterofAuthorization <ShenzhenLanxinTechnologyCo.LTD> Company: ShenzhenLanxinTechnologyCo.LTD Address: ZoneB,7thFloor,BuildingB1,HuafengCenturyScienceAndTechnologyPark,HangchengAvenue Xixiangstreet,BaoanDistrict,Shenzhen ProductName:Bluetoothearphone ModelNumber:L50 L12,L13,L22pro,L31pro,T11,T15,T18,L51,L52ANC,L53, L60,L61,L62,L63 FCCIdentifier:2A264-L50 WeauthorizeLGAITechnologicalCenterS.A.,RondadelaFontdelCarme,s/n, 08193Bellaterra,Spain,toactonourbehalfonallmattersconcerningthe abovenamedequipment. AnyindividualwithinLGAITechnologicalCenterS.A.isauthorizedtoactonour behalfandtakeactionontheapplication. WedeclarethatauthorizeLGAITechnologicalCenterS.A.,RondadelaFontdel Carme,s/n,08193Bellaterra,Spain,isallowedtoforwardallinformation relatedtotheapprovalprojecttotheFederalCommunicationCommissionand todiscussanyissuesconcerningtheapprovalapplication.Anyandallacts carriedoutbyLGAITechnologicalCenterS.A.onourbehalfshallhavethe sameeffectasactsofourown. Name:JackzhouDate:2021-09-13 Title:N/A Signatureofapplicant:

C5266091_X10_Ed.1 1/1 <ShenzhenLanxinTechnologyCo.LTD> OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 Date:2021-09-13 Subject:RequestforConfidentiality FCCID:2A264-L50 ToWhomItMayConcern, PursuanttotheprovisionsofSections0.457and0.459ofCommission'srules (47CFR0.457,0.459),wearerequestingtheCommissiontowithholdthefollowing attachment(s)asconfidentialdocumentfrompublicdisclosure. ExhibitsLong-Term Confidentiality Short-Term Confidentiality IDLabel/LocationNoNo AttestationStatementNoNo ExternalPhotosNo BlockDiagram Schematics TestReportNoNo TestSetupPhotosNo User’sManual InternalPhotos PartsList/TuneUp RFExposureInfo OperationalDescription CoverLetter(s)NoNo SDRSoftware/SecurityInfoNo Abovementioneddocumentcontainsdetailedsystemandequipmentdescriptionare consideredasproprietaryinformationinoperationoftheequipment.Thepublic disclosureofabovedocumentsmightbeharmfultoourcompanyandwouldgive competitoranunfairadvantageinthemarket. Itisourunderstandingthatallmeasurementtestreports,FCCIDlabelformatand correspondentduringcertificationreviewprocesscannotbegrantedasconfidential documentsandthoseinformationwillbeavailableforpublicreviewoncethegrantof equipmentauthorizationisissued. Sincerely, Signature: Name:Jackzhou Title: N/A

EUTPHOTO(ExternalPhotos)

Labelandlabellocation

EUTPHOTO(InternalPhotos) Antenna

FCC ID:2A264-L50 RF Exposure Evaluation According to KDB 447498 and part 2.1093 ， Unless specifically required by thepublished RF exposure KDB procedures, standalone 1-g head or body and 10-g extremity SAR evaluation for general population exposure conditions, by measurement or numerical simulation, is not required when the correspondingSAR Test Exclusion Threshold condition(s), listed below, is (are) satisfied. For 100 MHz to 6 GHz and test separation distances ≤ 50 mm, the 1-g and 10-g SAR test exclusion thresholds are determined by the following: [(max. power of channel, including tune-up tolerance, mW) / (min. test separation distance, mm)] · [√f (GHz) ] ≤ 3.0 for 1-g SAR, and ≤ 7.5 for 10-g extremity SAR, where f (GHz) istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbeforecalculation Theresultisroundedtoonedecimalplaceforcomparison Here, ForBluetooth MaxPower(dBm)MaxPower(mW)Frequency(MHz)Min.distance(mm)Calc.thresholdslimit -19.680.0107424025 0.003327 3.0 SoaSARtestisnotrequired

ProjectNo.:ZKT-2108204360E Page 1 of 33 FCC TEST REPORT FCC ID:2A264-L50 ReportNumber.....................................:ZKT-2108204360E DateofTest ....................................................... :Aug21,2021toAug31,2021 Dateofissue ......................................... :Aug31,2021 Totalnumberofpages..........................33 TestResult .......................................... : PASS TestingLaboratory. .............................. : ShenzhenZKTTechnologyCo.,Ltd. Address ............................................... : 1/F,No.101,BuildingB,No.6,TangweiCommunityIndustrial Avenue,FuhaiStreet,Bao'anDistrict,Shenzhen,China Applicant'sname ................................ :ShenzhenLanxinTechnologyCo.LTD Address ............................................... : ZoneB,7thFloor,BuildingB1,HuafengCenturyScienceAnd TechnologyPark,HangchengAvenueXixiangstreet,Baoan District,Shenzhen Manufacturer'sname ......................... : ShenzhenLanxinTechnologyCo.LTD Address...............................................: ZoneB,7thFloor,BuildingB1,HuafengCenturyScienceAnd TechnologyPark,HangchengAvenueXixiangstreet,Baoan District,Shenzhen Testspecification: Standard................................................: FCCCFRTitle47Part15SubpartCSection15.249 ANSIC63.10:2013 Testprocedure.....................................: / Non-standardtestmethod ................ :N/A TestReportFormNo. ....................... : TRF-EL-111_V0 TestReportForm(s)Originator.....: ZKTTesting MasterTRF........................................: Dated:2020-01-06 ThisdevicedescribedabovehasbeentestedbyZKT,andthetestresultsshowthattheequipmentunder test(EUT)isincompliancewiththeFCCrequirements.Anditisapplicableonlytothetestedsample identifiedinthereport. Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofZKT,thisdocumentmay bealteredorrevisedbyZKT,personalonly,andshallbenotedintherevisionofthedocument. Productname.......................................:Bluetoothearphone Trademark ........................................... :N/A Model/Typereference.........................: L50 L12,L13,L22pro,L31pro,T11,T15,T18,L51,L52ANC,L53,L60, L61,L62,L63 Ratings..................................................:Input:DC5Vto3.7V(battery) ProjectNo.:ZKT-2108204360E Page 2 of 33 Testingprocedureandtestinglocation: TestingLaboratory.......................................:ShenzhenZKTTechnologyCo.,Ltd. Address ............................................................ :1/F,No.101,BuildingB,No.6,TangweiCommunity IndustrialAvenue,FuhaiStreet,Bao'anDistrict, Shenzhen,China AlenHe Testedby(name+signature).......................: JoeLiu Reviewer(name+signature).......................: LakeXie Approved(name+signature) ....................... : ProjectNo.:ZKT-2108204360E Page 3 of 33 TableofContents Page 1.VERSION5 2.SUMMARYOFTESTRESULTS6 2.1TESTFACILITY7 2.2MEASUREMENTUNCERTAINTY7 3.GENERALINFORMATION8 3.1GENERALDESCRIPTIONOFEUT8 3.2DESCRIPTIONOFTESTMODES9 3.3BLOCKDIGRAMSHOWINGTHECONFIGURATIONOFSYSTEMTESTED10 3.4DESCRIPTIONOFSUPPORTUNITS(CONDUCTEDMODE)10 3.5EQUIPMENTSLISTFORALLTESTITEMS11 4.EMCEMISSIONTEST12 4.1CONDUCTEDEMISSIONMEASUREMENT12 4.1.11POWERLINECONDUCTEDEMISSIONLIMITS12 4.1.2TESTPROCEDURE12 4.1.3DEVIATIONFROMTESTSTANDARD12 4.1.4TESTSETUP13 4.1.5EUTOPERATINGCONDITIONS13 4.1.6TESTRESULTS 4.2RADIATEDEMISSIONMEASUREMENT16 4.2.1RADIATEDEMISSIONLIMITS16 4.2.2TESTPROCEDURE17 4.2.3DEVIATIONFROMTESTSTANDARD17 4.2.4TESTSETUP17 4.2.5EUTOPERATINGCONDITIONS18 5.BANDWIDTHOFFREQUENCYBANDEDGE24 5.1TESTREQUIREMENT:24 5.2TESTPROCEDURE24 5.3DEVIATIONFROMTESTSTANDARD24 5.4TESTSETUP24 5.5EUTOPERATINGCONDITIONS25 5.6TESTRESULT26 6.CHANNELBANDWIDTH28 7.1APPLIEDPROCEDURES/LIMIT28 7.2TESTPROCEDURE28 7.3DEVIATIONFROMSTANDARD28 ProjectNo.:ZKT-2108204360E Page 4 of 33 TableofContentsPage 7.4TESTSETUP28 7.5EUTOPERATIONCONDITIONS28 7.6TESTRESULTS29 8.ANTENNAREQUIREMENT32 9.TESTSETUPPHOTO33 10.EUTCONSTRUCTIONALDETAILS33 ProjectNo.:ZKT-2108204360E Page 5 of 33 1.VERSION ReportNo.VersionDescriptionApproved ZKT-2108204360ERev.01InitialissueofreportAug31,2021 ProjectNo.:ZKT-2108204360E Page 6 of 33 2.SUMMARYOFTESTRESULTS Testproceduresaccordingtothetechnicalstandards: FCCPart15(15.249),SubpartC Standard Section TestItemJudgmentRemark FCCpart15.203AntennarequirementPASS FCCpart15.207ACPowerLineConductedEmissionN/A FCCpart15.249 Fundamental&RadiatedSpuriousEmission Measurement PASS FCCpart15.21520dBChannelBandwidthPASS FCCpart15.205BandEdgePASS NOTE: (1)”N/A”denotestestisnotapplicableinthisTestReport ProjectNo.:ZKT-2108204360E Page 7 of 33 2.1TESTFACILITY ShenzhenZKTTechnologyCo.,Ltd. Add.:1/F,No.101,BuildingB,No.6,TangweiCommunityIndustrialAvenue,FuhaiStreet,Bao'an District,Shenzhen,China FCCTestFirmRegistrationNumber:692225 DesignationNumber:CN1299 ICRegisteredNo.:27033 2.2MEASUREMENTUNCERTAINTY Thereporteduncertaintyofmeasurementy±U ， whereexpendeduncertaintyUisbasedonastandard uncertaintymultipliedbyacoveragefactorofk=2 ， providingalevelofconfidenceofapproximately95 % 。 No.ItemUncertainty 1ConductedEmissionTest±1.38dB 2RFpowerconducted±0.16dB 3Spuriousemissionsconducted±0.21dB 4Allemissionsradiated(<1G)±4.68dB 5Allemissionsradiated(>1G)±4.89dB 6Temperature±0.5°C 7Humidity±2% ProjectNo.:ZKT-2108204360E Page 8 of 33 3.GENERALINFORMATION 3.1GENERALDESCRIPTIONOFEUT ProductName: Bluetoothearphone ModelNo.: L50 L12,L13,L22pro,L31pro,T11,T15,T18,L51,L52ANC,L53, L60,L61,L62,L63 ModelDifferent.: PCBboard,circuit,structureandinternalofthesemodel(s)arethe same,onlymodelnameisdifferentforthesemodels. SerialNo.: N/A HardwareVersion: V1.1 SoftwareVersion: V1.0 Sample(s)Status:Engineersample ChannelNumbers: 79 ChannelSeparation: 2402MHz~2480MHz ModulationType: GFSK,π/4-DQPSK,8DPSK AntennaType: PCBAntenna Antennagain: 0dBi Powersupply: Input:DC5Vto3.7V(battery) SWITCHINGPOWER ADAPTER: / ProjectNo.:ZKT-2108204360E Page 9 of 33 OperationFrequencyeachofchannel ChannelFrequencyChannelFrequencyChannelFrequencyChannelFrequency 12402MHz212422MHz412442MHz612462MHz …

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EUTTESTPHOTO