FCC ID: 2A3EN-AP550A1 True Wireless Earbuds

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions,may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help.

Dongguan feitianqi Trading Co., Ltd ADD: Room 301, No. 74, Xinlian Jiuxiang, Humen Town,Dongguan,Guangdong China TEL: 18566621145 FAX: 18566621145 E-mail: feitianqi2021@163.com Date: 2022-5-6 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Dear Sir/Madam, We, Dongguan feitianqi Trading Co., Ltd, hereby authorize China Certification ICT Co., Ltd (Dongguan) to act as a laboratory for testing and test report generation for the following project(s):

(Product description: True wireless earbuds, Model: AP550A,BH550A,TO550A,SH550A,CO550A, FCC ID: 2A3EN-AP550A1) The chipset ATS3015 supports Bluetooth BDR(GFSK), EDR(/4-DQPSK, 8DPSK) and BLE Mode, But for this device, BLE mode was disable by software. Sincerely, Signature:

Printed Name: Derric Bai Title: Manager

Dongguan feitianqi Trading Co., Ltd Add: Room 301, No. 74, Xinlian Jiuxiang, Humen Town,Dongguan,Guangdong China Tel: 18566621145 FAX: 18566621145 Email: feitianqi2021@163.com DECLARATION OF SIMILARITY Date: 2022-5-6 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Dear Sir or Madam:

We, Dongguan feitianqi Trading Co., Ltd, hereby declare that the product: True wireless earbuds, FCC ID: 2A3EN-AP550A1. model: BH550A,TO550A,SH550A,CO550A is electrically identical with the model: AP550A which was tested by China Certification ICT Co., Ltd (Dongguan) with the same electromagnetic emissions and electromagnetic compatibility characteristics. A description of the differences between those models and that are declared similar are as follows:

They are the same product, and just the different model name, the rest are the same. Please contact me should there be need for any additional clarification or information. Best Regards, Signature:

PrintedName:DerricBai Title:Manager

Dongguan feitianqi Trading Co., Ltd ADD: Room 301, No. 74, Xinlian Jiuxiang, Humen Town,Dongguan,Guangdong China TEL: 18566621145 FAX: 18566621145 E-mail: feitianqi2021@163.com Date: 2022-5-6 To FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia,MD 21046 Dear Sir/Madam,

, hereby submits justification for placing the FCC ID We, Dongguan feitianqi Trading Co., Ltd, FCC ID:

2A3EN-AP550A1 label to the charging box. According to the FCC Regulation and Guidence (KDB Publication 784748 D01 v09R01) allows for the FCC to be removed to charging box if the device is unquestionably too small for the FCC ID label to be printed. The measurement of right headset: Length (22.61mm)*Width (21.17mm)*High (21.09mm), label: Length 36.3(mm)*Width15.76(mm), charging box:64.57(mm)*43.18(mm)*32.52(mm).Refer to the above quote, as the headset are too small for the FCC ID label to be printed, so the FCC ID label will be moved to the charging box. For details, please see below photos:

Charging box mm mm mm m m m m L:

R:

Headset mm Label Sincerely, Printed Name: Derric Bai Title: Manager L:

R:

QA-FR-169-B

Dongguan feitianqi Trading Co., Ltd ADD: Room 301, No. 74, Xinlian Jiuxiang, Humen Town,Dongguan,Guangdong China TEL: 18566621145 FAX: 18566621145 E-mail: feitianqi2021@163.com FCC Confidential Authorization Date:2022-5-6 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request regarding application for certification of FCC ID: 2A3EN-AP550A1 In accordance with Sections 0.457 and 0.459 of the Commissions Rules, (Dongguan feitianqi Trading Co., Ltd) hereby requests long-term confidential treatment of information accompanying this application as outlined below:

Block Diagram Schematics Operation Description The above materials contain proprietary and confidential information not customarily released to the public. The public disclosure of these materials provides unjustified benefits to its competitors in the market. Sincerely, Signature:

Printed Name: Derric Bai Title: Manager QA-FR-171-A

Dongguan feitianqi Trading Co., Ltd ADD: Room 301, No. 74, Xinlian Jiuxiang, Humen Town,Dongguan,Guangdong China TEL: 18566621145 FAX: 18566621145 E-mail: feitianqi2021@163.com FCC Authorization Date: 2022-5-6 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization To whom it may concern:

We , Dongguan feitianqi Trading Co., Ltd, Hereby authorizes China Certification ICT Co., Ltd

(Dongguan) to act on its behalf in all matters relating to application for Equipment authorization, including the signing of all documents relating to these matters. All acts carried out by China Certification ICT Co., Ltd (Dongguan) on our behalf shall have the same effect as our own action. We, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. This authorization is valid until further written notice from the applicant. Sincerely Yours, Clients signature Printed Name: Derric Bai Title: Manager QA-FR-170-B