FCC ID: 2AHN6-AUBE222 TWS Glow in The Dark-ASST

BY-AU-BE-222-AC Operating Temp: 15

-102 1 Tap: Play/Pause, Resume music/Answer Call 2 Tap: Vol+/Vol-

3 Tap: Enable SIRI/Google Long Hold 3 seconds: Pre/Next Song, Reject Call Long Hold 5 seconds: Power On/ Power Off FCC ID2AHN6-AUBE222 This equipment copmlies with FCC radiation exposure limits set forth for an uncontrolled environment.

Bytech NY Inc. 2585West 13th Street,Brooklyn NY 11223,New York, United States Tel: 718-449-3700 I Fax: 718-449-2488 E-mail: solimiz@bytechintl.com Date: 2021-12-01 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 To whom it may concern:

The RF chip, model AB5616A, which installed in our product TWS Glow in The Dark-

ASST, Model: BY-AU-BE-222-AC, FCC ID: 2AHN6-AUBE222, supports BDR

(GFSK), EDR (/4-DQPSK, 8DPSK), BLE functions. For use in America and this chip will not support/enable BLE function. The BLE function has been shielded by the manufacturer using the software. Sincerely Yours, Signature:

Printed Name: Soli Mizrahi Title: President

Bytech NY Inc. 2585 West 13th Street,Brooklyn NY 11223 USA Tel: 718-449-3700 | Fax: 718-449-2488 E-mail: solimiz@bytechintl.com Declaration Date: 12/01/2021 To whom it may concern:

Our product, Bytech NY Inc., Model number: BY-AU-BE-222-AC, FCC ID: 2AHN6- AUBE222

, was tested by ATC (Shenzhen),which has left earphone and right earphone. We would like to declare that the product has two units which are electrically identical. We confirm that all information above is true, and well be responsible for all the consequences. Sincerely Yours, Signature:

Printed Name: Soli Mizrahi Title: President

B VTECI-i EARTOFTCHNOlOGY Bytech NY Inc. 2585' West 13th Street,Brooklyn NY 1 1223,New York, United States Tel : 718-449-3700 I Fax: 718-449-2488 E-mail: solimiz@bytechi ntl.com FCC Authorization 12/01/2021 FEDERALCOUNICATlONS COMM1SSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization To wbom it may concern:

We,vtech NY lnc. the undersigned, hereby authorize Shenzhen Accurate Technology Co., Ltd.to act on its behalf in all matters relating to application for Equipment authorization, including the signing of all documents relating to these matters. AII acts carried out by Shenzhen Accurate Technology Co., Ltd on our behalf shall have the same effect as our own action. We, the unders igned, hereby certifY that we are not subject to a denial offederal benefits, that includes FCC benefits, pursuant to Section 5301 ofthe Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. This authorization is valid until further written notice from the applicant. Sincerely Yours,

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QA-FR-170-B

2585 West 13th Street,Brooklyn NY 11223, NewYork, United States Tel: 718-449-3700 |Fax: 718-449-2488 E-mail: solimiz@bytechintl.com Bytech NY Inc. 2021-12-01 FCC Certification No. Cover Letter We, Bytech NY Inc., hereby submit justification for placing the FCC certification No. in the associated users manual and charging case. According to the FCC regulation, the FCC certification No. should be printed on the earbuds, but as the earbuds are too small to print the label (FCC ID: 2AHN6-AUBE222), it will be moved to the user manual and charging case. The details are as below:

A. Top cover (A): The plastic of the top cover does not provide enough physical space to fit the printing of the FCC ID according to below reference picture. B. Area (B): The plastic of the top cover does not provide enough physical space to fit the printing of the FCC ID according to below reference picture. Conclusion Based on the above description of area A to B, we conclude that the device is unquestionably too small for enabling the FCC ID to be printed onto any surface; we therefore request to move the FCC ID to the User manual and charging case. Sincerely Yours, Signature:

Printed Name: Soli Mizrahi Title: President

Circuit description the Bluetooth chip(AB5616A); Crystal Battery(3.7V)provides energy for oscillator(26MHz) provides the clock signal for the Bluetooth chip. Products is in broadcasting state when stand by, broadcasting Bluetooth signals according to a certain time interval. Bluetooth signals get through a matching circuit, and then transmitted to the space through the antenna(2402MHz-2408MHz). When the product is connected, the product can be in two-way communication with mobile phones, and then the phone's Bluetooth module sends Bluetooth signals into space, the product receives the Bluetooth signal through an antenna, transmission to the Bluetooth chip via matching circuit. Modulation Technique:Bluetooth:GFSK,/4-DQPSK,8DPSK Antenna Specification:0dBi