2BKXT-V10Bluetooth earphones

FCC ID:2BKXT-V10

1/1 USAgentforServiceofProcessLETTEROFATTESTATION TO: OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USAgentforServiceofProcess: CompanyName:ChenyueZhonglianInternationalTradeServiceLLC FRN:0035336668 ContactName:yongchaoli Address:522WRIVERSIDEAVESTENSPOKANE ， WA99201 TelephoneNo:+18788880902 Email:[email protected] Applicant: Companyname:SHENZHENYAOXINGGETECHNOLOGYCO,LTD. ProductDescription:Bluetoothearphones Granteecode:2BKXT FCCID:2BKXT-V10 FRN:0035929645 ContactName:ShaobinZhao Address:EASTZONEOFSHANGXUESCIENCEANDTECHNOLOGYPARK,BANTIANSTREET, LONGGANGDISTRICE,SHENZHEN,China TelephoneNo:+8615602204100 Email:[email protected] [SHENZHENYAOXINGGETECHNOLOGYCO,LTD.]certifiesthat,asofthedate ofthisfilingoftheapplicationwiththeTCB,[ChenyueZhonglianInternational TradeServiceLLC]isourdesignatedUSagentforserviceofprocessforthe abovereferencedFCCID.[SHENZHENYAOXINGGETECHNOLOGYCO,LTD.] acceptstomaintainanagentfornolessthanoneyearafterthegranteehas terminatedallmarketingandimportationortheconclusionofanycommission relatedproceedinginvolvingequipment.[ChenyueZhonglianInternational TradeServiceLLC]accepts,asofthedateofthefilingoftheapplication,the obligationofthedesignatedUSagentforserviceofprocessfortheabove referenceFCCID. TheUSAgentforServiceofProcessisawareofandagreestocomplywiththerequirements outlinedintheFCCEquipmentAuthorizationProgram,ReportandOrderFCC22-84,andclause §2.911. TheApplicantisawareofandagreestocomplywiththerequirementsoutlinedintheFCC EquipmentAuthorizationProgram,ReportandOrderFCC22-84,andclause§2.911. Date:2024/09/14 Applicant’sName:ShaobinZhaoUSAgent’sName:yongchaoli Title:ManagerTitle:Manager SignatureSignature

C5266091_X24_Ed.2 1/1 SHENZHEN YAOXINGGE TECHNOLOGY CO,LTD. “Attestation Statements” TO: Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 The Commission adopted rules that prohibit equipment authorization for “covered” telecommunications equipment and video surveillance equipment produced by entities identified on the Commission’s Covered List 1 , which is periodically updated. See the Covered List for more details. This Attestation Statement is to confirm that we follow the Section 2.911(d)(5)(i)-(ii) Applicant Company name: SHENZHEN YAOXINGGE TECHNOLOGY CO,LTD. FRN：0035929645 Grantee code: 2BKXT FCC ID: 2BKXT-V10 Contact Name: Shaobin Zhao Address: EAST ZONE OF SHANGXUE SCIENCE AND TECHNOLOGY PARK,BANTIAN STREET, LONGGANG DISTRICE,SHENZHEN,China Telephone No: 8615602204100 Fax No: 8615602204100 Email: [email protected] i. [SHENZHEN YAOXINGGE TECHNOLOGY CO,LTD.] (“the applicant”) certifies that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. The applicant must sign this certification. [SHENZHEN YAOXINGGE TECHNOLOGY CO,LTD.] (“the applicant”) certifies that, as of the date of the filing of the application, the applicant [is not] (as a specifically named entity or any of its subsidiaries or affiliates) identified on the Covered List as an entity producing “covered” equipment. The applicant must sign this certification. [SHENZHEN YAOXINGGE TECHNOLOGY CO,LTD.] (“the applicant”) certifies that, as of the date of the filing of the application, the applicant [is not] identified on the Covered List as an entity producing “covered”equipment . Date: 2024/09/18 Applicant’s Name: Shaobin Zhao Title: Manager Signature 1 The Commission’s Covered List is published by the Public Safety and Homeland Security Bureau and posted on the Commission’s website. This Covered List, which is periodically updated, identifies particular equipment, produced by particular entities, that constitutes “covered” equipment. https://www.fcc.gov/supplychain/coveredlist

Modeldifferencedeclarationletter DifferencesDescription FCCID:2BKXT-V10 WeShenZhenDiodeOptoelectrictechnologyco.,LTDstate: Product： Bluetoothearphones ModelName ： V10,V39,V44,V55,V66,V77,V88,V99,V40,V50,V60 V70,V80,V90,V100,V200,V300,V400,V500,V600, V700,V800,V900 We(SHENZHENYAOXINGGETECHNOLOGYCO,LTD.)herebystatethatallthemodels areelectricalidenticalincludingthesamesoftwareparameterandhardwaredesign(i.e., circuitdesign,ChipLayout,RFmodule/circuit,ntennatype(s)andantennalocation, componentsonChip,etc.,),samemechanicalstructureanddesign(includingproduct enclosure,materials,etc.,),theonlydifferenceisthemodelnameandappearancecolor. Signatory Date:September14,2024 Signature: Name:ShaobinZhao Title:Manager

C5266091_X8_Ed.1 1/1 Letter of Authorization SHENZHEN YAOXINGGE TECHNOLOGY CO,LTD. Company: SHENZHEN YAOXINGGE TECHNOLOGY CO,LTD. Address: EAST ZONE OF SHANGXUE SCIENCE AND TECHNOLOGY PARK,BANTIAN STREET, LONGGANG DISTRICE,SHENZHEN,China Product Name: Bluetooth earphones Model Number: V10, V39,V44,V55,V66,V77,V88,V99,V40,V50,V60, V70,V80,V90,V100,V200,V300,V400,V500,V600, V700,V800,V900 We authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, to act on our behalf on all matters concerning the above named equipment. Any individual within LGAI Technological Center S.A. is authorized to act on our behalf and take action on the application. We declare that authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, is allowed to forward all information related to the approval project to the Federal Communication Commission and to discuss any issues concerning the approval application. Any and all acts carried out by LGAI Technological Center S.A. on our behalf shall have the same effect as acts of our own. Name: Shaobin Zhao Date: 2024.09.18 Title: Manager Signature of applicant:

C5266091_X10_Ed.2 1/1 SHENZHEN YAOXINGGE TECHNOLOGY CO,LTD. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 2024.9.18 Subject: Request for Confidentiality FCC ID: 2BKXT-V10 To Whom It May Concern, Pursuant to the provisions of Sections 0.457 and 0.459 of Commission's rules (47CFR0.457, 0.459), we are requesting the Commission to withhold the following attachment(s) as confidential document from public disclosure. Exhibits Long-Term Confidentiality Short-Term Confidentiality NOTE 2 ID Label/Location No No Attestation Statement No No External Photos No ☐ Block Diagram ☒ ☐ Schematics ☒ ☐ Test Report No No Test Setup Photos No ☐ User’s Manual ☐ NOTE 1 ☐ Internal Photos ☐ NOTE 1 ☐ Parts List / Tune Up ☐ ☐ RF Exposure Info No No Operational Description ☒ ☐ Cover Letter(s) No No SDR Software / Security Info ☐ No NOTE 1: Long-Term Confidentiality may be permitted under special conditions (See II. LONG-TERM CONFIDENTIALITY, Section 3 of KDB 726920, use last in force) NOTE 2: Short-Term Confidentiality can be requested for a maximum of 180 days from the date of the grant. Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. In case of short-term Confidentiality, the applicant requests the exhibits selected above are withheld from public view for a period of ______ days from the date of the Grant of Equipment Authorization and prior to marketing. It is our understanding that all measurement test reports, FCC ID label format and correspondent during certification review process cannot be granted as confidential documents and those information will be available for public review once the grant of equipment authorization is issued. C5266091_X10_Ed.2 1/1 Sincerely, Signature: Name: Shaobin Zhao Title: Manager 2024.09.18

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SHENZHENYAOXINGGETECHNOLOGYCO,LTD. 9/19/2024 DearSirs： WeherebydeclarethatbecausetheBluetoothearphonessizeistoosmall,theFCCIDnumberis printedontheUserManual,herebydeclare. FCCID:2BKXT-V10 Sincerely, Signature: Name:ShaobinZhao Title:Manager Company:SHENZHENYAOXINGGETECHNOLOGYCO,LTD.

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FCC RF Exposure EUT Description:Bluetoothearphones ModelNo.:V10 SeriesModel:V39,V44,V55,V66,V77,V88,V99,V40,V50,V60, V70,V80,V90,V100,V200,V300,V400,V500,V600, V700,V800,V900 FCCID: 2BKXT-V10 Equipmenttype:PortableDevice 1. Test Procedure Accordingto KDB447498D01 GeneralRF ExposureGuidancev06 The 1-g and 10-gSARtest exclusionthresholdsfor 100 MHzto 6 GHzat test separationdistances≤50 mm are determinedby: [(max.powerof channel,includingtune-uptolerance,mW)/ (min.test separationdistance,mm)]·[√f(GHz)]≤3.0 for 1-g SARand≤7.5 for 10-g extremitySAR, where f(GHz)is the RF channeltransmitfrequencyin GHz Powerand distanceare roundedto the nearestmW and mm before calculationThe resultis roundedto one decimalplacefor comparison The test exclusionsare applicableonly whenthe minimumtest separation distanceis ≤ 50 mm and for transmissionfrequenciesbetween100 MHzand 6GHz. Whenthe minimumtest separationdistanceis < 5 mm,a distanceof 5 mm is appliedto determineSARtest exclusion. 2. Test Resultof RF ExposureEvaluation BT [(max.powerof channel,includingtune-uptolerance,mW)/(min.test separation distance,mm)]· [√f(GHz)]=0.61944107/5* √2.4 80 =0.1950993≤3.0 Thresholdat whichno SAR requiredis and ≤ 3.0 for 1-g SAR,Separationdistanceis 5mm. Conclusion：No SARrequired Mode Channel Freq. (MHz) Maximum Conducted Output Power(PK) (dBm) AntennaGain (dBi) Antenna gain numeric Max power (mW) GFSK 2402-3.661.731.490.43052661 244 1-2.311.731.490.58748935 3 24 80-2.081.731.490.61944107 5

1 FCCTestReport ReportNo:FCS202409068W01 Issuedfor Applicant: SHENZHENYAOXINGGETECHNOLOGYCO,LTD. Address: EASTZONEOFSHANGXUESCIENCEANDTECHNOLOGY PARK,BANTIANSTREET,LONGGANGDISTRICE,SHENZHEN. China ProductName: Bluetoothearphones BrandName: N/A ModelName: V10 SeriesModel: V39,V44,V55,V66,V77,V88,V99,V40,V50,V60, V70,V80,V90,V100,V200,V300,V400,V500,V600, V700,V800,V900 FCCID: 2BKXT-V10 IssuedBy:FluxComplianceServiceLaboratory Add:Room105FloorBaohaoTechnologyBuilding1NO.15GongyeWestRoadHi-Tech Industrial,SongshanlakeDongguan Tel:769-27280901Fax:769-27280901http://www.FCS-lab.com Page 2 of41ReportNo.:FCS202409068W01 FluxComplianceServiceLaboratory Room105FloorBaohaoTechnologyBuilding1NO.15GongyeWestRoadHi-TechIndustrial,Song shanlakeDongguan Tel:769-27280901Fax:769-27280901http://www.FCS-lab.com 2 TESTRESULTCERTIFICATION Applicant’sName.........................: SHENZHENYAOXINGGETECHNOLOGYCO,LTD. Address.........................................: EASTZONEOFSHANGXUESCIENCEANDTECHNOLOGY PARK,BANTIANSTREET,LONGGANGDISTRICE,SHENZHEN.China Manufacture'sName...................:SHENZHENYAOXINGGETECHNOLOGYCO,LTD. Address.........................................: EASTZONEOFSHANGXUESCIENCEANDTECHNOLOGY PARK,BANTIANSTREET,LONGGANGDISTRICE,SHENZHEN.China ProductDescription ProductName..............................:Bluetoothearphones BrandName..................................: N/A ModelName.................................: V10 SeriesModel.................................: V39,V44,V55,V66,V77,V88,V99,V40,V50,V60, V70,V80,V90,V100,V200,V300,V400,V500,V600, V700,V800,V900 TestStandards.............................:FCCRulesandRegulationsPart15SubpartC,Section247 TestProcedure.............................:ANSIC63.10:2013 ThisdevicedescribedabovehasbeentestedbyFluxComplianceServiceLaboratory,thetestresults showthattheequipmentundertest(EUT)isincompliancewiththeFCCrequirements.Anditis applicableonlytothetestedsampleidentifiedinthereport. Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofFluxCompliance ServiceLaboratory,thisdocumentmaybealteredorrevisedbyFluxComplianceServiceLaboratory, personalonly,andshallbenotedintherevisionofthedocument.. DateofTest .................................. : Date(s)ofperformanceoftests.:September7,2024~September9,2024 DateofIssue ................................. :September9,2024 TestResult .................................... :Pass Testedby: (ScottShen) Reviewedby : (DukeQian) Approvedby: (JackWang) Page 3 of41ReportNo.:FCS202409068W01 FluxComplianceServiceLaboratory Room105FloorBaohaoTechnologyBuilding1NO.15GongyeWestRoadHi-TechIndustrial,Song shanlakeDongguan Tel:769-27280901Fax:769-27280901http://www.FCS-lab.com 3 TableofContentsPage 1.SUMMARYOFTESTRESULTS...........................................................................................6 1.1TESTFACTORY............................................................................................................7 1.2MEASUREMENTUNCERTAINTY.................................................................................7 2.GENERALINFORMATION...................................................................................................8 2.1GENERALDESCRIPTIONOFTHEEUT.......................................................................8 2.2BLOCKDIGRAMSHOWINGTHECONFIGURATIONOFSYSTEMTESTED............10 2.3DESCRIPTIONOFNECESSARYACCESSORIESANDSUPPORTUNITS...............11 2.4EQUIPMENTSLIST.....................................................................................................12 3CONDUCTEDEMISSIONMEASUREMENT........................................................................13 4.20DBBANDWIDTH............................................................................................................17 4.1Limit..............................................................................................................................17 4.2TestProcedure.............................................................................................................17 4.3Testsetup.....................................................................................................................17 4.4Testresults...................................................................................................................17 4.5OriginalTestData.........................................................................................................18 5.CONDUCTEDOUTPUTPOWER........................................................................................19 5.1LIMIT............................................................................................................................19 5.3TESTSETUP...............................................................................................................19 5.5TESTRESULTS...........................................................................................................19 6NUMBEROFHOPPINGCHANNEL....................................................................................20 6.1LIMIT............................................................................................................................20 6.2TESTPROCEDURE.....................................................................................................20 5.3TESTSETUP...............................................................................................................20 6.4EUTOPERATIONCONDITIONS.................................................................................20 6.5TESTRESULTS...........................................................................................................21 7.BANDEDGEANDSPURIOUS(CONDUCTED)..................................................................22 7.1LIMIT............................................................................................................................22 7.2TESTPROCEDURE...................................................................................................…

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2.4GHz2012ChipAntenna:RANT2012F245X5 Dimension(mm) L2.05+-0.15 W1.20+-0.15 T0.65+-0.10 No.TerminalName 1Feeding/GNG 2GND Application: WLAN,802.11b/g,Bluetooth,WLAN,etc... Features SMD,highreliability,ultraImpact,Omni-directional... PartnumberInformation RANT2012F245X5 (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=5 ElectricalSpecification WorkingFrequencyRange2400~2484MHz Bandwidth84(Min.) PeakGain1.73dBi (Typ.) Impedance50Ohm Returnloss10dB(Min) PolarizationLinear AzimuthBeamwidthOmni-directional OperationTemperature( °C )-40~85 °C ResistancetoSolderingHeats 10sec.(@280°C) TerminationNi/Au(Leadless) ThespecificationisdefinedonEVB. DimensionandTerminalConfiguration 咏成國際科技有限公司電話:13530576606 RAINInternationalTechnologyCo.,Ltd. 2.4GHz2012ChipAntenna:RANT2012F245X5 EvaluationBoardReference PCBDimensionAntennaLayoutReference Unit:mm ElectricalCharacteristics ReturnLoss ReturnLoss&Radiation 1 Frequency(MHz) S11(dB) 2400-10.77 2450-24.81 2484-10.243 Radiation Z Y X 2400MHz2450MHz2500MHz Efficiency70.56%75.25%71.01% Min: -13.6952 Max : 3 Min: -18.5605 Scale: 0.5/div Scale: 0.5/div Min: -12.4786 Scale: 0.5/div 2400MHz 2450MHz2500MHz Max : 3 Max : 3 Peak Gain 0.945 dBi1.731 dBi0.867 dBi 2.4GHz2012ChipAntenna:RANT2012F245X5 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:RANT2012F245X5 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:RANT2012F245X5 2.4GHz2012ChipAntenna:RANT2012F245X5 _ 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

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