2BD92-PROTWS Bluetooth headset

OasisCompliance,Inc.FCCID: 2BD92-PRO CFR47§2.911(d)(7)FCCUSAgentLetterofAttestation Date:01-02-2024 FCCID:2BD92-PROFRN:0034656256 To:FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 ToWhomItMayConcern, ThisletteristoconfirmthatwehaveacceptedtheresponsibilitytoactasUSAgentonbehalf ofShenzhenChenyaTechnologyCo.,Ltd(“theapplicant”)fortheabovereferencedFCCID. Weareawareoftherequirementsandresponsibilitiesoftheapplicant’sagentforserviceof processasoutlinedintheFCCsection2.911(d)(7)andReportandOrderFCC22-84paragraph 63. U.S.AgentInformation: OasisCompliance,Inc. FRN:0033464157 JamesHe 3313VerdiDr,SanJose,CA95111 Cell:2026028330 Sincerelyyours, JamesHe GlobalMarketAccessManager OasisCompliance,Inc. Email:[email protected]

C5266091_X24_Ed.2 1/1 “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 Chenya Technology Co., Ltd FRN: 0034656256 Grantee code: 2BD92 FCC ID: 2BD92-PRO Contact Name: Xiaozhen Zhan Address: 4/F, Building A, Aojin Diyuan Industrial Zone, Pinghu Street, Longgang District, Shenzhen City Telephone No: 17304481650 Fax No: Email: [email protected] i. [Shenzhen Chenya 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. ii. [ Shenzhen Chenya 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 Chenya Technology Co., Ltd 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: 01.11.2024 Applicant’s Name: Xiaozhen Zhan Title: Manage 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

CFR47 §2.911(d)(7)AgentDesignationAttestation Date:01 -02 -202 4 FCCID: 2BD92-PROFRN:0034656256 To:FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD 21046 ShenzhenChenyaTechnologyCo., Ltd(“the applicant”) as requiredby section2.911(d)(7), designatesthe followingagent,locatedin the UnitedStates,for purposesof actingas the applicant’s agentfor serviceof process. The applicantacknowledgesthat they will maintainan agentfor no less thanone year afterthe granteehas terminatedall marketingand importationor the conclusionof any Commission- relatedproceedinginvolvingthe equipment.The applicantfurtheracknowledgestheir responsibilityto informthe FCCwheneverthe agentinformationchanges. U. S. AgentInformation: JamesHe OasisCompliance,Inc. FRN:0033464157 3313VerdiDr, San Jose,CA 95111 [email protected] cell:2026028330 Sincerelyyours, __________________________ XiaozhenZhan Manager ShenzhenChenyaTechnologyCo., Ltd Address:4/F, BuildingA, AojinDiyuanIndustrialZone,PinghuStreet,LonggangDistrict, ShenzhenCity Email:[email protected] Phone:+86- 17304481650

Shenzhen Chenya Technology Co., Ltd Product Similarity Declaration Product name: TWS Bluetooth headset Model name: C9 Pro, C8 Pro, C6 Pro, C7 Pro, C21 Pro, C33 Pro, E6 Pro, A12 Pro, L18, J55 FCC ID: 2BD92-PRO We (Shenzhen Chenya Technology Co., Ltd) hereby state that all the models are electrical identical including the same software parameter and hardware design (i.e., circuit design, PCB Layout, RF module/circuit, antenna type(s) and antenna location, components on PCB, etc.,), same mechanical structure and design (including product enclosure, materials, etc.,), the only difference is the model name and color. Demonstrate the detail (descriptions and pictures) as to the difference list above. Signature: Name: Xiaozhen Zhan Title: Manage Date: 01.11.2024

C5266091_X8_Ed.1 1/1 Letter of Authorization Company: Shenzhen Chenya Technology Co., Ltd Address: 4/F, Building A, Aojin Diyuan Industrial Zone, Pinghu Street, Longgang District, Shenzhen City Product Name: TWS Bluetooth headset Model Number: C9 Pro, C8 Pro, C6 Pro, C7 Pro, C21 Pro, C33 Pro, E6 Pro, A12 Pro, L18, J55 FCC Identifier: 2BD92-PRO 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: Xiaozhen Zhan Date: 1/11/2024 Title: Manage Signature of applicant:

C5266091_X10_Ed.1 1/1 Shenzhen Chenya Technology Co., Ltd Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 1/11/2024 Subject: Request for Confidentiality FCC ID: 2BD92-PRO 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 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 Internal Photos Parts List / Tune Up RF Exposure Info Operational Description Cover Letter(s) No No SDR Software / Security Info No 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. 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. Sincerely, Signature: Name: Xiaozhen Zhan Date: 1/11/2024 Title: Manage

Page 1 of 5 Shenzhen NCT Testing Technology Co., Ltd. A101&2F B2, Fuqiao 6th Area, Xintian Community, Fuhai Street, Baoan District, Shenzhen, China Hotline: 400-8868-419Fax: 86-755-27790922http://www.ncttesting.cn FCC ID : 2BD92-PRO External Photos Page 2 of 5 Shenzhen NCT Testing Technology Co., Ltd. A101&2F B2, Fuqiao 6th Area, Xintian Community, Fuhai Street, Baoan District, Shenzhen, China Hotline: 400-8868-419Fax: 86-755-27790922http://www.ncttesting.cn Page 3 of 5 Shenzhen NCT Testing Technology Co., Ltd. A101&2F B2, Fuqiao 6th Area, Xintian Community, Fuhai Street, Baoan District, Shenzhen, China Hotline: 400-8868-419Fax: 86-755-27790922http://www.ncttesting.cn Page 4 of 5 Shenzhen NCT Testing Technology Co., Ltd. A101&2F B2, Fuqiao 6th Area, Xintian Community, Fuhai Street, Baoan District, Shenzhen, China Hotline: 400-8868-419Fax: 86-755-27790922http://www.ncttesting.cn Page 5 of 5 Shenzhen NCT Testing Technology Co., Ltd. A101&2F B2, Fuqiao 6th Area, Xintian Community, Fuhai Street, Baoan District, Shenzhen, China Hotline: 400-8868-419Fax: 86-755-27790922http://www.ncttesting.cn

Shenzhen Chenya Technology Co., Ltd version02 1/11/2024 Dear Sirs: We hereby declare that because the earphone size is too small, the FCC ID number is printed on the User Manual, hereby declare. FCC ID: 2BD92-PRO Sincerely, Signature: Name: Xiaozhen Zhan Title: Manage Company: Shenzhen Chenya Technology Co., Ltd

Page 1 of 3 Shenzhen NCT Testing Technology Co., Ltd. A101&2F B2, Fuqiao 6th Area, Xintian Community, Fuhai Street, Baoan District, Shenzhen, China Hotline: 400-8868-419Fax: 86-755-27790922http://www.ncttesting.cn FCC ID: 2BD92-PRO Internal Photos Page 2 of 3 Shenzhen NCT Testing Technology Co., Ltd. A101&2F B2, Fuqiao 6th Area, Xintian Community, Fuhai Street, Baoan District, Shenzhen, China Hotline: 400-8868-419Fax: 86-755-27790922http://www.ncttesting.cn ANT Page 3 of 3 Shenzhen NCT Testing Technology Co., Ltd. A101&2F B2, Fuqiao 6th Area, Xintian Community, Fuhai Street, Baoan District, Shenzhen, China Hotline: 400-8868-419Fax: 86-755-27790922http://www.ncttesting.cn

FCC ID:2BD92-PRO RF Exposure Evaluation According toKDB 447498 D01 General RF Exposure Guidance v06and 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 numericalsimulation, is not required when the correspondingSAR Test Exclusion Thresholdcondition(s), listed below, is (are) satisfied. For 100 MHz to 6 GHz and test separation distances≤5 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)]ꞏ[√f (GHz) ]≤3.0 for 1-g SAR, and≤7.5 for 10-g extremity SAR, where f (GHz) is the RF channel transmit frequency in GHz Power and distance are rounded to the nearest mW andmm before calculation The result is rounded to one decimal place for comparison Here, Conclusion: For the max result: 0.0100≤3.0 for 1g SAR test exclusion threshold, No SAR is required. ModeFrequency (MHz) Max Power (dBm) Target power W/ tolerance (dBm) Max tune up power tolerance (dBm) Max Power (mW) Min. Distance (mm) Calc. thresholds limit BR GFSK 2402-16.38 (-16)±1-150.0230 5.000.0098 3.0 2441-16.57 (-16)±1-150.0220 5.000.0099 3.0 2480-17(-16)±1-150.0200 5.000.0100 3.0 EDR π/4-DQPSK 2402-16.07 (-16)±1-150.0247 5.000.0098 3.0 2441-17.02 (-17)±1-160.0199 5.000.0078 3.0 2480-16.79 (-16)±1-150.0209 5.000.0100 3.0

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 Max: 5dBi Min: -40dBi Scale: 5/div 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

Page 1 of 66 Hotline: 400-8868-419Fax: 86-755-27790922http://www.ncttesting.cn FCC TEST REPORT FCC ID:2BD92-PRO Product:TWS Bluetooth headset Model Name: C9 PRO, C8 PRO, C6 PRO, C7 PRO, C21 PRO, C33 PRO, E6 PRO, A12 PRO, L18, J55 Brand:N/A Report No.:NCT24005037-1 Prepared for Shenzhen Chenya Technology Co., Ltd. 4 / F, Building A, Aojin Diyuan Industrial Zone, Pinghu Street, Longgang District, Shenzhen City Prepared by Shenzhen NCT Testing Technology Co., Ltd. A101&2F B2, Fuqiao 6th Area, Xintian Community, Fuhai Street, Baoan District, Shenzhen, People’s Republic of China TEL: 400-8868-419 FAX: 86-755-27790922 Report No.: NCT24005037-1 Page 2 of 66 Hotline: 400-8868-419Fax: 86-755-27790922http://www.ncttesting.cn 1 TEST RESULT CERTIFICATION Applicant’s name: Shenzhen Chenya Technology Co., Ltd. Address: 4 / F, Building A, Aojin Diyuan Industrial Zone, Pinghu Street, Longgang District, Shenzhen City Manufacture's name : Shenzhen Chenya Technology Co., Ltd. Address : 4 / F, Building A, Aojin Diyuan Industrial Zone, Pinghu Street, Longgang District, Shenzhen City Product name : TWS Bluetooth headset Model name : C9 PRO, C8 PRO, C6 PRO, C7 PRO, C21 PRO, C33 PRO, E6 PRO, A12 PRO, L18, J55 Standards : FCC CFR47 Part 15 Section 15.247 Test procedure : ANSI C63.10-2013 KDB 558074 D01 15.247 Meas Guidance v05r02 Test Date: 2023-09-19 to 2023-12-20 Date of Issue: 2024-1-20 Test Result :Pass This device described above has been tested by NCT, and the test results show that the equipment under test (EUT) is in compliance with the FCC requirements. And it is applicable only to the tested sample identified in the report. This report shall not be reproduced except in full, without the written approval of NCT, this document may be altered or revised by NCT, personal only, and shall be noted in the revision of the document. Test Engineer: Keven Wu / Engineer Technical Manager: Henry Wang / Manager Report No.: NCT24005037-1 Page 3 of 66 Hotline: 400-8868-419Fax: 86-755-27790922http://www.ncttesting.cn Contents Page 1 TEST RESULT CERTIFICATION...............................................................................................................................2 2 TEST SUMMARY....................................................................................................................................................5 3 TEST FACILITY.......................................................................................................................................................6 4 GENERAL INFORMATION...................................................................................................................................7 4.1G ENERALDESCRIPTION OFE.U.T............................................................................7 4.2C HANNELLIST............................................................................................................8 4.3T ESTSETUPCONFIGURATION.................................................................................. 9 4.4T ESTMODE................................................................................................................9 5 EQUIPMENT DURING TEST..............................................................................................................................10 5.1E QUIPMENTSLIST....................................................................................................10 5.2M EASUREMENTUNCERTAINTY................................................................................12 5.3D ESCRIPTION OFSUPPORTUNITS..........................................................................12 6 RADIATED SPURIOUS EMISSIONS................................................................................................................13 6.1EUT O PERATION..................................................................................................... 13 6.2T ESTSETUP.............................................................................................................14 6.3S PECTRUMANALYZERSETUP.................................................................................15 6.4T ESTPROCEDURE................................................................................................... 16 6.5S UMMARY OFTESTRESULTS................................................................................. 17 7 MAXIMUM PEAK OUTPUT POWER TEST.....................................................................................................26 7.1T ESTSTANDARD ANDLIMIT.................................................................................... 26 7.2T ESTSETUP.............................................................................................................26 7.3T ESTPROCEDURE................................................................................................... 26 7.4T ESTDATA...............................................................................................................26 8 20DB OCCUPY BANDWIDTH TEST................................................................................................................ 27 8.1T ESTSTANDARD......................................................................................................27 8.2T ESTSETUP.............................................................................................................27 8.3T ESTPROCEDURE................................................................................................... 27 8.4T ESTDATA...............................................................................................................27 9 CARRIER FREQUENCY SEPARATION TEST...............................................................................................28 Report No.: NCT24005037-1 Page 4 of 66 Hotline: 400-8868-419Fax: 86-755-27790922http://www.ncttesting.cn 9.1TESTSTANDARD ANDLIMIT.................................................................................... 28 9.2T ESTSETUP...............…

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Page 1 of 1 Shenzhen NCT Testing Technology Co., Ltd. A101&2F B2, Fuqiao 6th Area, Xintian Community, Fuhai Street, Baoan District, Shenzhen, China Hotline: 400-8868-419Fax: 86-755-27790922http://www.ncttesting.cn FCC ID:2BD92‐PRO Test Photo