FCC ID: 2A2F7-C1 Bluetooth earphone

TYPE C

(AST3015)

In charging condition, quick press L or R side 5 times

to restore the factory setup

400mAh

16

Charging

case

Earbuds

Red light flashes

Red light

Green light

Red light

Red and green light

Cross flashing

Charging

Fully charged

Charging for earbuds

Charging

Pairing

* Earbuds: The red light is off when fully charged

3.5

FCC Caution：

This device complies with part 15 of the FCC

Rules. Operation is subject to the following two

conditions: (1) This device may not cause

harmful interference, and (2) this device must

accept any interference received, including

interference that may cause undesired

operation.

Any Changes or modifications not expressly

approved by the party responsible for

compliance could void the user's authority to

operate the equipment.

Note: 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

Reorient or relocate the receiving

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:

-

antenna.

-

the equipment and receiver.

-

Connect the equipment into an

outlet on a circuit different from that to which

the receiver is connected.

-

experienced radio/TV technician for help.

The device has been evaluated to meet

general RF exposure requirement. The device

can be used in portable exposure condition

without restriction.

Increase the separation between

Consult the dealer or an

Shenzhen Xingman Smart Technology Co., Ltd

2021.09.01

Eurofins Electrical and Electronic Testing NA, Inc.

914 W. Patapsco Avenue

Baltimore, MD 21230

USA

RE: LETTER OF AGENT AUTHORIZATION

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 : Steven hu / Manager

Contact information / address: 3F, Building E, No.2 Lixin Road, Fu yong, Bao'an

District, Shen Zhen, China

Shenzhen Xingman Smart Technology Co., Ltd Declaration letter To Whom It May Concern, We, Shenzhen Xingman Smart Technology Co., Ltd hereby confirm for Bluetooth earphone / C1 the following:

The difference between the left and right ears is as follows:

In order to meet the different structural requirements of the left and right sides, the main direction of U1(ATS3015) chip is moved, and the positions of YZ1(24MHz) and LP1(4.7UH) are adjusted accordingly in order to adapt to the performance of the chip. The mobile content has no influence on the RF circuit. Due to the move of U1 main chip, the output line of RF has been adjusted correspondingly, but the relevant parameters of RF will not be affected By:

Title:

_____________ ___ Steven hu ___

(Print name)

(Signature) _____Manager____________

Shenzhen Xingman Smart Technology Co., Ltd

2021.09.01

Eurofins Electrical and Electronic Testing NA, Inc.

914 W. Patapsco Avenue

Baltimore, MD 21230

USA

RE: CONFIDENTIALITY REQUEST FOR

EUT NAME: Bluetooth earphone

Trademark:

MODEL : C1, C2, C3, C4, C5, C6, C7, C8, C9, C10, C11, C12, C13, C14, C15,

C16, C17, C18, C19, C20

FCC ID : 2A2F7-C1

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 : Steven hu / Manager

Contact information / address: 3F, Building E, No.2 Lixin Road, Fu yong, Bao'an

District, Shen Zhen, China

Shenzhen Xingman Smart Technology Co., Ltd

Model Difference

2021-09-01

EUT NAME: Bluetooth earphone

MODEL : C1, C2, C3, C4, C5, C6, C7, C8, C9, C10, C11, C12, C13, C14, C15, C16,

C17, C18, C19, C20

FCC ID: 2A2F7-C1

All the model are the same circuit and RF module, only for model name and color.

Regards

Sincerely

Client’s signature

Client’s signature:

Client’s name / title : Steven hu / Manager

Contact information / address: 3F, Building E, No.2 Lixin Road, Fu yong, Bao'an District,

Shen Zhen, China