2A378-VERSEPROBone Conduction Headphones

Dongguan Pure Audio Technology Co., Ltd. Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: September 4, 2024 FCC ID: 2A378-VERSEPRO Ref. #1: Attestation Statements Part 2.911(d)(5)(i) Filing Dongguan Pure Audio Technology Co., Ltd. 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. Ref. #2: Attestation Statements Part 2.911(d)(5)(ii) Filing Dongguan Pure Audio 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. Applicant: Dongguan Pure Audio Technology Co., Ltd. Address: Room 814, No.183 Chonghuan Middle Road, Shijie Town, Dongguan China Contact Person: Chunchun He Tel.: +86-13926800191 Email: [email protected] Sincerely, Signature:

Dongguan Pure Audio Technology Co., Ltd. U.S. Agent Letter of Attestation To: Federal Communications Commission 7435 Oakland Mills Road, Columbia, MD 21046, USA Date: September 4, 2024 Ref: Attestation Statement – Part 2.911(d)(7) filing FCC ID: 2A378-VERSEPRO Dongguan Pure Audio Technology Co., Ltd. (“the applicant”) certifies that, as of the date of the filing of the application, CLF Import and Export Limited (“the agent”) is our designated U.S. agent for service of process for the above reference FCC ID. The applicant accepts to maintain an agent for service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. The applicant further acknowledges it is our responsibility to inform the FCC whenever the agent information changes. CLF Import and Export Limited ("the agent) understand it is the agent's obligation to accept service of process in the United States for matters related to the applicable equipment, and at the physical U.S. address and email address. Designated U.S. Agent Company Name: CLF Import and Export Limited FRN: 0033489683 Address: 1312 17th Street #692, Denver, CO 80202, United States Signature: Contact Person: David Chen Tel: +1 949 254 2565 Email: [email protected] Applicant Company Name: Dongguan Pure Audio Technology Co., Ltd. FRN: 0031824055 Address: Room 814, No.183 Chonghuan Middle Road, Shijie Town, Dongguan China Signature: Contact Person: Chunchun He Tel: +86-13926800191 Email: [email protected]

Dongguan Pure Audio Technology Co., Ltd. Date: September 4, 2024 Product Model Number: Verse Pro, Kaibo Flow FCC ID: 2A378-VERSEPRO To whom it may concern, Re: Product Certification Representative Authorization Letter We authorize QAI Laboratories Ltd. 3980 North Fraser Way, Burnaby B.C. Canada V5J 5K5 to act on our behalf on all matters concerning the above named equipment. This shall include the following: • Testing • Approval applications and procedures We declare that ORGANIZATION. is allowed to forward all information related to the approval project to the applied certification body and to the notification entities and to discuss any issues concerning the approval application. Any and all acts carried out by ORGANIZATION. on our behalf shall have the same effect as acts of our own. By: Chunchun He Contact Listed on FCC Wesbite Title: Manager Email: [email protected] Telephone: +86-13926800191 On behalf of: Dongguan Pure Audio Technology Co., Ltd.

Dongguan Pure Audio Technology Co., Ltd. Model Difference Statement Dear Sir/Madam, Added models Kaibo Flow basis of the original product Verse Pro. The color of appearance and model name of series models listed are different from the main model, but the circuit and the electronic construction are the same, declared by the manufacturer. Sincerely, Name: Chunchun He Title: Manager Company name: Dongguan Pure Audio Technology Co., Ltd. Address: Room 814, No.183 Chonghuan Middle Road, Shijie Town, Dongguan China

UNLESS OTHER SPECIFIED TOLERANCES ON： Honmax Technology Limited 0＝ ± 10.0＝ ± 0.500.00＝ ± 0.20 ANGLES＝±HOLE DIA＝± SCALE：N/AUNIT：mm This DRAWINGS and specifications are theproperty of honmax and shall not be reproduced or used as the basis for the manufacture or sale of apparatus or devices without permission DRAWNBY:SARACHECKEDBY:XD DESIGNED BY: HEXINAPPROVED BY: XD TITLE：SC2450M3216A1 Specification DOCUMENT SC2450M3216A1 SPEC REV. NO.A0 PAGE1OF10 SC2450M3216A1 Specification 1. Product number SC2450M3216A1 （1）（2）（3）（4）（5）（6） Numbers Information: (1)Product Company: SemitelElectronics Co., Ltd. (2)Product Series:SMD Antenna (3)site：Room 101, 1st Floor, Building 7, No.7001 Zhongchun Road, Minhang District, Shanghai (4)Feed Mode: Monopole (5)External Dimensions(L×WxH) (mm): 3.20*1.60*0.72 (6)Antenna Type: SMD Antenna 2. Features Stable and reliable in performances Low profile, compact size RoHS compliance SMT processes compatible 3. Applications ISM 2.4GHz application ZigBee/BLE application Bluetooth earphone systems Hand-held devices when Wi-Fi / Bluetooth functions are needed, e.g., Smart phone IEEE802.11 b/g/n Wireless PCMCIA cards or USB dongles UNLESSOTHERSPECIFIEDTOLERANCESON： HonmaxTechnologyLimited 0＝ ± 10.0＝ ± 0.500.00＝ ± 0.20 ANGLES＝±HOLEDIA＝± SCALE：N/AUNIT：mm ThisDRAWINGSandspecificationsarethepropertyofhonmaxandshallnotbe reproducedorusedasthebasisforthemanufactureorsaleofapparatusordevices withoutpermission DRAWNBY:SARACHECKEDBY:XD DESIGNEDBY:HEXINAPPROVEDBY:XD TITLE：SC2450M3216A1Specification DOCUMENT SC2450M3216A1 SPECREV. NO.A0 PAGE2OF10 4.Description Semitel’schipantennaisdesignedforISM2.4GHzapplications,coveringfrequencies 2400~2500MHz.Fabricatedwithproprietarydesignandprocesses,itshowsexcellent performanceandisfullycompatiblewithSMTprocesseswhichcandecreasethe assemblycostandimprovedevice’squalityandconsistency. 5.ShapeandDimensions Dimensions: Dimensions(mm) L 3.20±0.20 W 1.60±0.20 H 0.72±0.20 A 0.3±0.25 UNLESSOTHERSPECIFIEDTOLERANCESON： HonmaxTechnologyLimited 0＝ ± 10.0＝ ± 0.500.00＝ ± 0.20 ANGLES＝±HOLEDIA＝± SCALE：N/AUNIT：mm ThisDRAWINGSandspecificationsarethepropertyofhonmaxandshallnotbe reproducedorusedasthebasisforthemanufactureorsaleofapparatusordevices withoutpermission DRAWNBY:SARACHECKEDBY:XD DESIGNEDBY:HEXINAPPROVEDBY:XD TITLE：SC2450M3216A1Specification DOCUMENT SC2450M3216A1 SPECREV. NO.A0 PAGE3OF10 6.LayoutGuide＆ElectricalSpecifications 6.1LayoutGuide(unit:mm) SolderLandPattern ： Thesolderlandpattern(goldmarkingareas)isshownblow.Recommendationon matchingcircuitwillbeprovidedaccordingtocustomer’sinstallationconditions. 6.2ApplicationGuide UNLESSOTHERSPECIFIEDTOLERANCESON： HonmaxTechnologyLimited 0＝ ± 10.0＝ ± 0.500.00＝ ± 0.20 ANGLES＝±HOLEDIA＝± SCALE：N/AUNIT：mm ThisDRAWINGSandspecificationsarethepropertyofhonmaxandshallnotbe reproducedorusedasthebasisforthemanufactureorsaleofapparatusordevices withoutpermission DRAWNBY:SARACHECKEDBY:XD DESIGNEDBY:HEXINAPPROVEDBY:XD TITLE：SC2450M3216A1Specification DOCUMENT SC2450M3216A1 SPECREV. NO.A0 PAGE4OF10 6.3ElectricalSpecifications(EvaluationBoardDimensions:86*50) ElectricalTable(2400~2500MHzBand) ProductnumberS-C-2450-M-3216-A0 CentralFrequency2440MHz Bandwidth100(Min.)MHz ReturnLoss-11.96(Max.)dB PeakGain2.73dBi Impedance50Ω OperatingTemperature-40~+85°C MaximumPower5W Resistancetosolderingheat10(@260°C)Sec. PolarizationLinear AzimuthBeamwidthOmni-directional TerminationSn(leadless) 7.ElectricalCharacteristics ReturnLoss UNLESSOTHERSPECIFIEDTOLERANCESON： HonmaxTechnologyLimited 0＝ ± 10.0＝ ± 0.500.00＝ ± 0.20 ANGLES＝±HOLEDIA＝± SCALE：N/AUNIT：mm ThisDRAWINGSandspecificationsarethepropertyofhonmaxandshallnotbe reproducedorusedasthebasisforthemanufactureorsaleofapparatusordevices withoutpermission DRAWNBY:SARACHECKEDBY:XD DESIGNEDBY:HEXINAPPROVEDBY:XD TITLE：SC2450M3216A1Specification DOCUMENT SC2450M3216A1 SPECREV. NO.A0 PAGE5OF10 SmithChat VSWR MarkFrequencyVSWR 12400MHz1.674 22440MHz1.166 32480MHz1.484 UNLESSOTHERSPECIFIEDTOLERANCESON： HonmaxTechnologyLimited 0＝ ± 10.0＝ ± 0.500.00＝ ± 0.20 ANGLES＝±HOLEDIA＝± SCALE：N/AUNIT：mm ThisDRAWINGSandspecificationsarethepropertyofhonmaxandshallnotbe reproducedorusedasthebasisforthemanufactureorsaleofapparatusordevices withoutpermission DRAWNBY:SARACHECKEDBY:XD DESIGNEDBY:HEXINAPPROVEDBY:XD TITLE：SC2450M3216A1Specification DOCUMENT SC2450M3216A1 SPECREV. NO.A0 PAGE6OF10 RadiationPattern TheGainpatternismeasuredinFAR-fieldchamber.DUTisplacedonthetableof rotator,astandardhornantennaandVectorNetworkAnalyzerisusedtocollectdata. Efficiency UNLESSOTHERSPECIFIEDTOLERANCESON： HonmaxTechnologyLimited 0＝ ± 10.0＝ ± 0.500.00＝ ± 0.20 ANGLES＝±HOLEDIA＝± SCALE：N/AUNIT：mm ThisDRAWINGSandspecificationsarethepropertyofhonmaxandshallnotbe reproducedorusedasthebasisforthemanufactureorsaleofapparatusordevices withoutpermission DRAWNBY:SARACHECKEDBY:XD DESIGNEDBY:HEXINAPPROVEDBY:XD TITLE：SC2450M3216A1Specification DOCUMENT SC2450M3216A1 SPECREV. NO.A0 PAGE7OF10 PeakGain 3DGainPattern(2400MHz) UNLESSOTHERSPECIFIEDTOLERANCESON： HonmaxTechnologyLimited 0＝ ± 10.0＝ ± 0.500.00＝ ± 0.20 ANGLES＝±HOLEDIA＝± SCALE：N/AUNIT：mm ThisDRAWINGSandspecificationsarethepropertyofhonmaxandshallnotbe reproducedorusedasthebasisforthemanufactureorsaleofapparatusordevices withoutpermission DRAWNBY:SARACHECKEDBY:XD DESIGNEDBY:HEXINAPPROVEDBY:XD TITLE：SC2450M3216A1Specification DOCUMENT SC2450M3216A1 SPECREV. NO.A0 PAGE8OF10 3DGainPattern(2450MHz) 3DGainPattern(2500MHz) UNLESSOTHERSPECIFIEDTOLERANCESON： HonmaxTechnologyLimited 0＝ ± 10.0＝ ± 0.500.00＝ ± 0.20 ANGLES＝±HOLEDIA＝± SCALE：N/AUNIT：mm ThisDRAWINGSandspecificationsarethepropertyofhonmaxandshallnotbe reproducedorusedasthebasisforthemanufactureorsaleofapparatusordevices withoutpermission DRAWNBY:SARACHECKEDBY:XD DESIGNEDBY:HEXINAPPROVEDBY:XD TITLE：SC2450M3216A1Specification DOCUMENT SC2450M3216A1 SPECREV. NO.A0 PAGE9OF10 8.EnvironmentalCharacteristics 8.1ReliabilityTest 8.2StorageCondition (1)Atwarehouse: Thetemperatureshouldbewithin0~30 °C andhumidityshouldbelessthan60…

Text truncated - open the document above for the full version.

Report No: SSP24080012-1E FCC ID: 2A378-VERSEPRO Annex of Test Report Annex A. EUT External Photos EUT View 1 EUT View 2 Report No: SSP24080012-1E FCC ID: 2A378-VERSEPRO Annex of Test Report EUT View 3 EUT View 4 Report No: SSP24080012-1E FCC ID: 2A378-VERSEPRO Annex of Test Report EUT View 5 EUT View 6 Report No: SSP24080012-1E FCC ID: 2A378-VERSEPRO Annex of Test Report EUT View 7

Report No: SSP24080012-1E FCC ID: 2A378-VERSEPRO Annex of Test Report Annex D. Label and Information FCC Label Sample FCC Label Specifications Text is Black in color and is justified. Labels are printed in indelible ink on permanent adhesive backing or silk-screened onto the EUT or shall be affixed at a conspicuous location on the EUT. Where the EUT is constructed in two or more sections connected by wires and marketed together, the above statement is required to be affixed only to the main control unit. When the EUT is so small or for such use that it is not practicable to place the statement on it, the above information shall be placed in a prominent location in the instruction manual or pamphlet supplied to the user or, alternatively, shall be placed on the container in which the device is marketed. FCC Label Location

FCC ID: 2A378-VERSEPRO RF Exposure Evaluation According to KDB 447498 D01 General RF Exposure Guidance v06 and part 2.1093，Unless specifically required by the published 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 corresponding SAR 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) is the RF channel transmit frequency in GHz Power and distance are rounded to the nearest mW and mm before calculation The result is rounded to one decimal place for comparison Here, The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction. For BR+EDR Max Conducted Power(dBm) Tune-up Power(dBm) Max Tune-up Power(dBm) Max Power(mW) Frequency(MHz) Min. distance(mm) Calc. thresholds limit -0.9 0(±1) 1 1.26 2402 5 0.309967 3.0 So a SAR test is not required

CCUT Testing & Certification Report No: SSP24080012-1E FCC Test Report Page 1 of 51 FCC TEST REPORT FCC ID: 2A378-VERSEPRO Report No. : SSP24080012-1E Applicant : Dongguan Pure Audio Technology Co., Ltd. Product Name : Bone Conduction Headphones Model Name : Verse Pro Test Standard : FCC Part 15.247 Date of Issue : 2024-08-30 Shenzhen CCUT Quality Technology Co., Ltd. 1F, Building 35, Changxing Technology Industrial Park, Yutang Street, Guangming District, Shenzhen, Guangdong, China; (Tel.:+86-755-23406590 website: www.ccuttest.com) This test report is limited to the above client company and the product model only. It may not be duplicated without prior permitted by Shenzhen CCUT Quality Technology Co., Ltd. CCUT Testing & Certification Report No: SSP24080012-1E FCC Test Report Page 2 of 51 Test Report Basic Information Applicant..................................: Dongguan Pure Audio Technology Co., Ltd. Address of Applicant...............: Room 814, No.183 Chonghuan Middle Road, Shijie Town, Dongguan China Manufacturer..........................: WANSTONIC ELECTRONICS (DONG GUAN) CO., Ltd. Address of Manufacturer........: Tung Fu Rd.West, ShiJie Town, Dongguan City, Guangdong, China Product Name.........................: Bone Conduction Headphones Brand Name.............................: - Main Model..............................: Verse Pro Series Models..........................: Kaibo Flow Test Standard..........................: FCC Part 15 Subpart C ANSI C63.4-2014 ANSI C63.10-2013 Date of Test .............................: 2024-08-08 to 2024-08-13 Test Result...............................: PASS Tested By ................................: (Colin Chen) Reviewed By............................: (Lieber Ouyang) Authorized Signatory............: (Lahm Peng) Note : This test report is limited to the above client company and the product model only. It may not be duplicated without prior permitted by Shenzhen CCUT Quality Technology Co., Ltd.. All test data presented in this test report is only applicable to presented test sample. CCUT Testing & Certification Report No: SSP24080012-1E FCC Test Report Page 3 of 51 CONTENTS 1. General Information ....................................................................................................................................................5 1.1 Product Information .............................................................................................................................................5 1.2 Test Setup Information..........................................................................................................................................6 1.3 Compliance Standards ...........................................................................................................................................7 1.4 Test Facilities ........................................................................................................................................................7 1.5 List of Measurement Instruments ..........................................................................................................................8 1.6 Measurement Uncertainty .....................................................................................................................................8 2. Summary of Test Results .............................................................................................................................................9 3. Antenna Requirement ............................................................................................................................................... 10 3.1 Standard and Limit.............................................................................................................................................. 10 3.2 Test Result .......................................................................................................................................................... 10 4. Conducted Emissions ................................................................................................................................................ 11 4.1 Standard and Limit.............................................................................................................................................. 11 4.2 Test Procedure.................................................................................................................................................... 11 4.3 Test Data and Results .......................................................................................................................................... 12 5. Radiated Emissions ................................................................................................................................................... 15 5.1 Standard and Limit.............................................................................................................................................. 15 5.2 Test Procedure.................................................................................................................................................... 15 5.3 Test Data and Results .......................................................................................................................................... 17 6. Band-edge Emissions(Radiated) ............................................................................................................................ 21 6.1 Standard and Limit.............................................................................................................................................. 21 6.2 Test Procedure.................................................................................................................................................... 21 6.3 Test Data and Results ..............................................................................................................…

Text truncated - open the document above for the full version.