2BWM8-A1-LOpen-ear Wireless Headphones

Shenzhen COOAI Technology Co., Ltd. U.S. Agent Letter of Attestation To: Federal Communications Commission 7435 Oakland Mills Road, Columbia, MD 21046, USA Date: July 10, 2026 Ref: Attestation Statement – Part 2.911(d)(7) filing FCC ID: 2BWM8-A1-L Shenzhen COOAI 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: Shenzhen COOAI Technology Co., Ltd. FRN: 0038549424 Address: Room A908, Comprehensive Building, Suojia Science and Technology Park, Sanwei Community, Hangcheng Subdistrict, Bao'an District, Shenzhen, China Signature: Contact Person: Yangbo Duan Tel: 13717098776 Email: [email protected]

Rev 6/05/2026 Shenzhen COOAI Technology Co., Ltd. Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 07-10-2026 Ref: Attestation Statements Part 2.911(d)(5)(i) Filing FCC ID: 2BWM8-A1-L [Shenzhen COOAI 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. [Shenzhen COOAI Technology Co., Ltd.] certifies that the equipment for which authorization is sought does not include cybersecurity or anti-virus software produced or provided by Kaspersky Lab, Inc. or any of its successors and assignees, including equipment with integrated Kaspersky Lab, Inc. (or any of its successors and assignees) cybersecurity or anti-virus software pursuant to DA-24-886 and KDB 986446 D01 Covered Equipment Guidance section B(2a). Device is inherently compliant based on hardware limitations or software controls. or A Software Bill of Materials (SBOM) is provided to the TCB for review, and The end-user or third parties cannot install additional software on this device. Sincerely, (Applicant signature) (Applicant printed name) Yangbo Duan Rev 6/05/2026 Shenzhen COOAI Technology Co., Ltd. Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 07-10-2026 Ref: Attestation Statements Part 2.911(d)(5)(ii) Filing FCC ID: 2BWM8-A1-L [Shenzhen COOAI 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 a specifically named entity or any of its subsidiaries or affiliates) as an entity producing “covered” equipment. Sincerely, (Applicant signature) (Applicant printed name) Yangbo Duan

Shenzhen COOAI Technology Co., Ltd. Date: July 10, 2026 Product Model Number: A1 (J8) FCC ID: 2BWM8-A1-L 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 QAI Laboratories Ltd. 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 QAI Laboratories Ltd. on our behalf shall have the same effect as acts of our own. By: Yangbo Duan Contact Listed on FCC Wesbite Title: Manager Email: [email protected] Telephone: 13717098776 On behalf of: Shenzhen COOAI Technology Co., Ltd.

Shenzhen COOAI Technology Co., Ltd. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: July 11, 2026 Subject; Request for Confidentiality FCC ID: 2BWM8-A1-L To Whom It May Concern, Pursuant to the provisions of the Commission’s rules Title 47 Sections §0.457 and §0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Parts List Operational Description Tune-up Procedure Software Security Requirements for UNII devices It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: Yangbo Duan Title: Manager

Report No: DSP26060438-1E FCC ID: 2BWM8-A1-L Annex of Test Report Annex A. EUT External Photos Model: A1 (J8) EUT View 1 EUT View 2 Report No: DSP26060438-1E FCC ID: 2BWM8-A1-L Annex of Test Report EUT View 3 EUT View 4 Report No: DSP26060438-1E FCC ID: 2BWM8-A1-L Annex of Test Report EUT View 5 EUT View 6 Report No: DSP26060438-1E FCC ID: 2BWM8-A1-L Annex of Test Report EUT View 7

Report No: DSP26060438-1E FCC ID: 2BWM8-A1-L Annex of Test Report Annex D. Label and Information FCC Label Sample Label Size:0.6cm*0.2cm 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

Report No: DSP26060438-1E FCC ID: 2BWM8-A1-L Annex of Test Report Annex B. EUT Internal Photos Model: A1 (J8) EUT Internal View 1 EUT Internal View 2 SMD Antenna Report No: DSP26060438-1E FCC ID: 2BWM8-A1-L Annex of Test Report EUT Internal View 3 EUT Internal View 4

FCC ID: 2BWM8-A1-L 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 1.36 1(±1) 2 1.585 2480 5 0.4992 3.0 So a SAR test is not required

2.4GHz 1608 SMD Antenna: RANT0603F245S5 _ Application: WLAN, 802.11b/g, Bluetooth, WLAN, etc... Features SMD, high reliability, ultra Impact, Omni-directional... Part number Information RANT0603F245S5 (A)(B)(C)(D)(E)(F) Electrical Specification Dimension and Terminal Configuration No.Terminal Name 1Feeding/GNG 2GND/Feeding (A)Product TypeSMD Antenna (B) Size Code 1.6x0.8mm( ± 0.1mm) (C) MaterialHigh K material (D) Frequency2.4 ~ 2.5GHz (E) Feeding modePIFA & Single Feeding (F) Antenna typeType=5 Working Frequency Range2400 ~2500 MHz Bandwidth120 MHz (Min.) Peak Gain2.7 dBi (Typ.) Impedance50 Ohm Return loss10 dB ( Min) PolarizationLinear Azimuth BeamwidthOmni-directional Operation Temperature(°C)-40 ~85°C Resistance to Soldering Heats 10sec. ( @ 280°C) TerminationNi / Au (Leadless) Dimension (mm) L 1.60±0.10 W 0.80±0.10 T 0.45±0.10 電話 : 13530576606 咏成國際科技有限公司 RAIN International Technology Co., Ltd. Room 709, Building F, Yuxing Technology Industrial Park, Nanchang Third Industrial Zone, Nanchang Community, Xixiang Subdistrict, Bao'an District, Shenzhen TEL: 13530576606 2.4GHz 1608 SMD Antenna: RANT0603F245S5 _ 1 Evaluation BoardReference PCB DimensionUnit :mm Return Loss & Radiation 2.4GHz 1608 SMD Antenna: RANT0603F245S5 _ 2.4GHz 1608 SMD Antenna: RANT0603F245S5 _ Taping Specifications Reel and Taping Specification Reel Specification TYPESIZEABCD 16087”4K/Reel 4.0±0.5 4.0±213.5±0.5178±2 Tapping Specification PackagingTypeABWEFGHTψDP Paper Type1608 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 1608 SMD Antenna: RANT0603F245S5 _ Reliability Table Test ItemProcedure Requirements Ceramic Type Remark (Reference) Electrical Characterization Fulfill the electrical specification User Spec. Thermal Shock 1. Preconditioning: 50 ± 10°C/ 1 hr , then keep for 24 ± 1 hrs at room temp. 2. Initial measure: Spec: refer Initialspec. 3. Rapid change of temperature test: -30°Cto +85°C; 100 cycles; 15 minutes at Lower category temperature; 15 minutes at Upper category temperature. No Visible Damage. Fulfill the electrical specification. MIL-STD-202 107 Temperature Cycling 1. Initial measure: Spec: refer Initialspec. 2. 100 Cycles (-30°Cto +85°C), Soak Mode=1 (2 Cycle/hours). 3. Measurement at 24 ± 2Hours after testcondition. No Visible Damage. Fulfill the electrical specification. JESD22 JA104 High Temperature Exposure 1. Initial measure: Spec: refer Initialspec. 2. Unpowered; 500hours @ T=+85°C. 3. Measurement at 24 ± 2 hours aftertest. No Visible Damage. Fulfill the electrical specification. MIL-STD-202 108 Low Temperature Storage 1. Initial measure: Spec: refer Initialspec. 2. Unpowered: 500hours @ T=-30°C. 3. Measurement at 24 ± 2 hours aftertest. No Visible Damage. Fulfill the electrical specification. MIL-STD-202 108 Solderability (SMD Bottom Side) Dipping method: a. Temperature: 235 ±5°C b. Dipping time: 3 ±0.5s The solder should cover over 95% of the critical area of bottom side. IEC 60384-21/22 4.10 Soldering Heat Resistance (RSH) Preheating temperature: 150 ± 10°C. Preheating time: 1~2 min. Solder temperature: 260 ± 5°C. Dipping time: 5 ± 0.5s No Visible Damage.IEC 60384-21/22 4.10 Vibration5g's for 20 min., 12 cycles each of 3 orientations Note: Use 8"X5" PCB .031" thick 7 secure points on, one long side and 2 secure points at corners of opposite sides. Parts mounted within 2" from any secure point. Test from 10-2000 Hz. No Visible Damage.MIL-STD-202 Method 204 Mechanical Shock Three shocks in each direction shall be applied along the three mutually perpendicular axes of the test specimen (18 shocks) Peak value: 1,500g’s Duration: 0.5ms Velocity change: 15.4 ft/s Waveform: Half-sine No Visible Damage.MIL-STD-202 Method 213 Humidity Bias 1. Humidity: 85% R.H., Temperature:85 ± 2 °C. 2. Time: 500 ± 24hours. 3. Measurement at 24 ± 2hrs after testcondition. No Visible Damage. Fulfill the electrical specification. MIL-STD-202 Method 106 2.4GHz 1608 SMD Antenna: RANT0603F245S5 _ Board Flex (SMD) 1. Mounting method: IR-Reflow. PCB Size (L:100 × W:40 × T:1.6mm) 2. Apply the load in direction of the arrow until bending reaches 2 mm. No Visible Damage.AEC-Q200 005 AdhesionForce of 1.8Kg for 60 seconds.No Visible Damage Magnification of 20X or greater may be employed for inspection of the mechanical integrity of the device body terminals and body/terminal junction. AEC-Q200 006 Physical Dimension Any applicable method using x10 magnification, micrometers, calipers, gauges, contour projectors, or other measuring equipment, capable of determining the actual specimen dimensions. In accordance with specification. JESD22 JB100 Revision History RevisionDateContent 12019/03/01New Datasheet 22020/02/22Add 2D radiation characteristic

Report No: DSP26060438-1E FCC Test Report Page 1 of 51 FCC TEST REPORT FCC ID: 2BWM8-A1-L Report No. : DSP26060438-1E Applicant : Shenzhen COOAI Technology Co., Ltd. Product Name : Open-ear Wireless Headphones Model Name : A1 (J8) Test Standard : FCC Part 15.247 Date of Issue : 2026-06-29 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. Report No: DSP26060438-1E FCC Test Report Page 2 of 51 Test Report Basic Information Applicant..................................: Shenzhen COOAI Technology Co., Ltd. Address of Applicant...............: Room A908, Comprehensive Building, Suojia Science and Technology Park, Sanwei Community, Hangcheng Subdistrict, Bao'an District, Shenzhen, China Manufacturer..........................: Shenzhen COOAI Technology Co., Ltd. Address of Manufacturer........: Room A908, Comprehensive Building, Suojia Science and Technology Park, Sanwei Community, Hangcheng Subdistrict, Bao'an District, Shenzhen, China Product Name.........................: Open-ear Wireless Headphones Brand Name.............................: - Main Model..............................: A1 (J8) Series Models..........................: - Test Standard..........................: FCC Part 15 Subpart C ANSI C63.4-2014 ANSI C63.10-2020 + Cor. 1-2023+C63.10a-2024 + Errata to C63.10a-2024 Date of Test .............................: 2026-06-11 to 2026-06-24 Test Result...............................: PASS Tested By ................................: (Coke Huang) Reviewed By............................: (Lorzix Luo) 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. Report No: DSP26060438-1E 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 .....................................................................................................................................9 2. Summary of Test Results ........................................................................................................................................... 10 3. Antenna Requirement ............................................................................................................................................... 11 3.1 Standard and Limit.............................................................................................................................................. 11 3.2 Test Result .......................................................................................................................................................... 11 4. Conducted Emissions ................................................................................................................................................ 12 4.1 Standard and Limit.............................................................................................................................................. 12 4.2 Test Procedure.................................................................................................................................................... 12 4.3 Test Data and Results .......................................................................................................................................... 13 5. Radiated Emissions ................................................................................................................................................... 16 5.1 Standard and Limit.............................................................................................................................................. 16 5.2 Test Procedure.................................................................................................................................................... 16 5.3 Test Data and Results .......................................................................................................................................... 18 6. Band-edge Emissions(Radiated) ............................................................................................................................... 22 6.1 Standard and Limit.............................................................................................................................................. 22 6.2 Test Procedure.................................................................................................................................................... 22 6.3 Test Data and Results ................…

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Report No: DSP26060438-1E FCC ID: 2BWM8-A1-L Annex of Test Report Annex C. Test Photos Conducted Emission Test View 1 Radiated Emission Test View Below 1GHz (Left headphone) Report No: DSP26060438-1E FCC ID: 2BWM8-A1-L Annex of Test Report Radiated Emission Test View Above 1GHz (Left headphone)