2A482-W16Baseus True Wireless Earphones

(Shenzhen Baseus Technology Co., Ltd.) 2023.02.08 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(i) request for (2A482-W16) [Shenzhen Baseus 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. Sincerely, (Applicant signature) (Applicant printed name) Zhang Mao (Shenzhen Baseus Technology Co., Ltd.) 2023.02.08 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(ii) request for (2A482-W16) [Shenzhen Baseus 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. Sincerely, (Applicant signature) (Applicant printed name) Zhang Mao

Attestation Statements (2023.02.08) TO: Federal Communications Commission Authorizati。n an d Evaluation Division 7435 Oakland Mills Road C olumbia, MD 21046, USA RE: Attestation Statements Part 2.911(d)(7) request for {2A482-W16l {Shenzhen Baseus Technoloe:v Co .. Ltd.). the undersigned, her , eby authorize丛旦旦监 SPECIALISTS L IMITED) to act as our designated U.S. agent for service of process, {Shenzhen Baseus Technoloe:v Co .. Ltd.) accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. {APEX US SPECIALISTS LIMITED) accepts the responsibility to act as designated U.S. agent for service of process, provides an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. Applicant Information: Company name: Shenzhen Baseus Technol ogγCo., Ltd. Contact Name: Zhang Mao A ddress: 2 nd Floor, Building B, Baseus Intelligence Park, No.2008, Xuegang Rd,Gangtou Community, Bantian Street, Longgang District, Shenzhen. Telephone No: +86-18818848769 Email: [email protected] U.S. Agent Information: C ompany Name:APEX US SPECIALISTS LIMITED Address:1226North King St.#460 Wilmington DE 19801 Contact Name:Wells Yan T elephone No:+353212066339 E mail: [email protected] Ap 阳 Applicant printed name: Zha『1 g Mao Agent Signature: l}.J血 ll ＞丫例 (if the agent is different from the applicant) Agent printed name:

Shenzhen Baseus Technology Co., Ltd. 2023.2.8 Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230 USA RE: CONFIDENTIALITY REQUEST FOR EUT NAME: Baseus True Wireless Earphones Trademark: Baseus MODEL : Baseus Bowie W16 FCC ID: 2A482-W16 To Whom It May Concern: This letter serves as an official request for confidentiality under sections 0.457 and 0.459 of CFR 47. We have requested that the - Block Diagram - Schematics - Operational Description required to be submitted with this application be permanently withheld from public review. The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. Please contact me if there is any information you may need. Sincerely, Client’s signature: Client’s name / title : Zhang Mao / Certified Engineer Contact information / address: 2nd Floor, Building B, Baseus Intelligence Park, No.2008, Xuegang Rd,Gangtou Community, Bantian Street, Longgang District, Shenzhen.

Shenzhen Baseus Technology Co., Ltd. 2023.2.8 Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230 USA RE: LETTER OF AGENT AUTHORIZATION EUT NAME: Baseus True Wireless Earphones Trademark: Baseus MODEL : Baseus Bowie W16 FCC ID: 2A482-W16 To Whom It May Concern: We, the undersigned, hereby authorize Shenzhen BCTC Testing Co., Ltd to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). This agreement expires one year from the current date. Sincerely, Client’s signature: Client’s name / title : Zhang Mao / Certified Engineer Contact information / address: 2nd Floor, Building B, Baseus Intelligence Park, No.2008, Xuegang Rd,Gangtou Community, Bantian Street, Longgang District, Shenzhen.

External Photos

Size:20*20mm FCC ID: 2A482-W16 Label location

Internal Photos Antenna

FCC ID: 2A482-W16 RF exposure evaluation §2.1093 Radiofrequency radiation exposure evaluation: Portable Devices. According to§15.247(i) and§1.1307b(1), systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the commission’s guidance. The 1-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(max. power of channel, including tune-up tolerance, mW) / (min. test separation distance, mm)] · [√f(GHz)] ≤ 3.0 for 1-g 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  When the minimum test separation distance is < 5 mm, a distance of 5 mm according is applied to determine SAR test exclusion.  The result is rounded to one decimal place for comparison BT  Modulation Frequency (GHz) Max. Power (dBm) Tune up Power (dBm) Max. Tune up Power (dBm) Max. Tune up Power (mW) Test distance (mm) Result exclusion thresholds for 1-g SAR 8DPSK 2.480 3.2 3±1 4 2.51 5 0.79 3.0 BLE Modulation Frequency (GHz) Max. Power (dBm) Tune up Power (dBm) Max. Tune up Power (dBm) Max. Tune up Power (mW) Test distance (mm) Result exclusion thresholds for 1-g SAR GFSK 2.440 0.66 0±1 1 1.26 5 0.39 3.0 Conclusion: For the max result : 0.79 ≤ FCC Limit 3.0 for 1g SAR. The Product unsupported at the same time to Transmitting.

2.4GHz 2012Chip Antenna: ANT2012R24005KL 3 1 / 6 Application: WLAN, 802.11b/g, Bluetooth, etc... Features SMD, high reliability, ultra compact, Omni-directional... Part number ANT 2012 R 2400 5K L3 (1) (2) (3)(4)(5) (1)Size Code2.0x1.2mm (2) PackingTape and reel (3) Frequency2.4GHz (4) Packing Number5K (5)CodeL3 Electrical Specification Working Frequency Range 2400 ~2484 MHz Peak Gain 0.23dBi ( Typ.) Impedance 50 Ohm VSWR 2.5(Max) Polarization Linear Azimuth Beamwidth Omni-directional Operation Temperature(°C) -40 ~85°C The specification is defined on HEK EVB. Dimension and Terminal Configuration Dimension (mm) No. Terminal Name L 2.00±0.15 1 Feeding W 1.20±0.15 2 Ground T 0.50±0.10 D 0.20±0.15 2.4GHz 2012Chip Antenna: ANT2012R24005KL 3 2 / 6 Evaluation Board Reference PCB Dimension Antenna L ayout Reference Unit : mm : Chip Antenna : Land Pattern Matching circuit Shenzhen Youbi Electronics Co.,LTD Room 106, Building A,Xinzheng Industrial Par k, 57 Liuxian Road, Bao 'an District, Shenzhen 2.4GHz 2012Chip Antenna: ANT2012R24005KL3 3 / 6 Electrical Characteristics VSWR&Efficiency Radiation Pattern ZX-Plane -40 -30 -20 -10 0 10 0 45 90 135 180 225 270 315 dBi 270 Horizontal Polarization 0° 270°90° Y Z X 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 2.32.42.52.6 Efficiency(% ） Frequency (GHz) Efficiency 1 2 3 4 5 6 7 8 9 10 2.32.42.52.6 VSWR Frequency (GHz) VSWR X Y Z 2. 4 ZY- XY - 4GHz 20 Plane -Plane 012Chipp Antenna: ANTT2012RR24005KKL3 4 / 6 2.4GHz 2012Chip Antenna: ANT2012R24005KL3 5 / 6 Taping Specifications Reel and Taping Specification Reel Specification TYPE SIZE A ψB ψC ψD W ψM 2012 7” 5K/Reel 2.0±0.5 13.5±1.0 21±1.0 60±1.0 11.5±2.0 178±2.0 Taping Specification Packaging Type A B W E F G H T ψD P Paper Type 2012 1.50±0.20 2.30±0.20 8.0±0.20 1.75±0.10 3.5±0.05 4.0±0.10 2.0±0.05 0.75±0.10 +0.10 1.50 -0 4.0±0.1 2.4GHz 2012Chip Antenna: ANT2012R24005KL3 6 / 6 Recommended Reflow Profile Pb free solder Soaking Working Soldering Peak Temp. Time Temp. Time Temp. Time Temp. T1 T2 t1 T3 t2 T4 t3 T5 150°C 180°C 60 to 120sec 230°C more than 30sec 247 to 253°C within 10sec 260°C Max. March. 2020 Ver.H01