FCC ID 2BYAU-MX1
Wireless Earphone
by Dongguan Shengyu Acoustics Technology Co., Ltd.
Grantee Code: 2BYAU Product Code: MX1
Latest application date: 2026-09-18
FCC ID Device Details
| FCC ID | 2BYAU-MX1 |
|---|---|
| Mirrors | fcc.id | gov | fccid.ai |
| Grantee Code | 2BYAU |
| Product Code | MX1 |
| Applicant Business | Dongguan Shengyu Acoustics Technology Co., Ltd. 🇨🇳 |
| Related Domains |  btf-lab.com  glocerts.com |
| Equipment Class | Wireless Earphone |
| Test Firm | BTF Testing Lab (Shenzhen) Co., Ltd. |
Operating Frequencies
| Frequency Range | Application Purpose | Final Action Date |
|---|---|---|
| 2402-2480 MHz | Original Equipment | 2026-09-18 |
Exhibits
| Document | Type | Available | File |
|---|---|---|---|
| User manual | Users Manual | 2026-09-18 | PDF 1.4 MB |
| Internal photos | Internal Photos | 2026-09-18 | PDF 1.7 MB |
| External photos | External Photos | 2026-09-18 | PDF 1.2 MB |
| Label and label location | ID Label/Location Info | 2026-09-18 | PDF 193 KB |
| Test setup photos | Test Setup Photos | 2026-09-18 | PDF 455.2 KB |
| Antenna information | Test Report | 2026-09-18 | PDF 495.3 KB |
| Appendix test data BT part 1 | Test Report | 2026-09-18 | PDF 3.5 MB |
| Appendix test data BT part 2 | Test Report | 2026-09-18 | PDF 3.9 MB |
| Appendix test data BT part 3 | Test Report | 2026-09-18 | PDF 3.1 MB |
| Appendix test data BT part 4 | Test Report | 2026-09-18 | PDF 4.2 MB |
| Appendix test data BT part 5 | Test Report | 2026-09-18 | PDF 1.8 MB |
| Test Report BT | Test Report | 2026-09-18 | PDF 1.7 MB |
| Agent attestation letter | Attestation Statements | 2026-09-18 | PDF 184.6 KB |
| Covered equipment letter | Attestation Statements | 2026-09-18 | PDF 257.7 KB |
| Due digilence letter | Attestation Statements | 2026-09-18 | PDF 249.9 KB |
| Confidentiality request letter | Cover Letter(s) | 2026-09-18 | PDF 257.8 KB |
| Letter of declaration model difference | Cover Letter(s) | 2026-09-18 | PDF 206.9 KB |
| RF exposure evaluation | RF Exposure Info | 2026-09-18 | PDF 214.1 KB |
| Block diagram Metadata only | Block Diagram | PDF 80.9 KB | |
| Schematic Metadata only | Schematics | PDF 113.2 KB | |
| Operation description Metadata only | Operational Description | PDF 106.7 KB |
Application Information
| Application ID | WxuM+FRl6SehBFyKvc59ig== |
|---|---|
| Final Action Date | 2026-09-18 |
| Application Purpose | Original Equipment |
| Applicant FRN | 0038893921 |
| Model | MX1 |
| Frequency Range | 2402-2480 MHz |
| Equipment Class | DSS - Part 15 Spread Spectrum Transmitter |
| Device Description | Wireless Earphone |
| Responsible Party | Chris Liu, bonnie.cai@btf-lab.com , 15820209177 |
| Non-Technical Contact | Huiying Fan, GLOCERTS TECHNOLOGY INC, huiying.fan@glocerts.com , (626) 588-8039 |
| Test Firm | Ryan CJ, BTF Testing Lab (Shenzhen) Co., Ltd., Ryan.cj@btf-lab.com , 86-755-23146130 |
| TCB Email | o.kneip@kl-certification.de  |
| TCB Scope | A4: UNII devices & low power transmitters using spread spectrum techniques |
| Short-Term Confidentiality | No |
| Long-Term Confidentiality | Yes |
| Modular Equipment | Does not apply |
| Composite Device | No |
| Cognitive Radio | No |
| Authorization Waiver | No |
| Authorization Waiver Approved | No |
| Section 5301 Certification | Yes |
| Related OET Knowledge DataBase Inquiry | No |
Applications
| Application ID | Date | Purpose |
|---|---|---|
| WxuM+FRl6SehBFyKvc59ig== | 2026-09-18 | Original Equipment |
Equipment Authorization
| Frequency | Output | Rules |
|---|---|---|
| 2402-2480 MHz | 0.0057 | 15C |
Grants
TCB Grant - Application WxuM+FRl6SehBFyKvc59ig==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
KL-Certification GmbH Heinrich-Hertz-Allee 7 St. Ingbert, 66386 Germany |
Date of Grant: 09/18/2026 Application Dated: 09/18/2026 |
| Dongguan Shengyu Acoustics Technology Co., Ltd. |
| Room 810, No. 303, Guancheng Section, |
| Dongcheng Middle Road, Guancheng Street |
| Dongguan City, Guangdong Province, China |
| Attention: Chris Liu , |
| NOT TRANSFERABLE |
| EQUIPMENT AUTHORIZATION is hereby issued to the named GRANTEE, and is VALID ONLY for the equipment identified hereon for use under the Commission's Rules and Regulations listed below. |
| FCC IDENTIFIER: | 2BYAU-MX1 |
| Name of Grantee: | Dongguan Shengyu Acoustics Technology Co., Ltd. |
| Equipment Class: | Part 15 Spread Spectrum Transmitter |
| Notes: | Wireless Earphone |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| 15C | 2402.0 - 2480.0 | 0.0057 |
| Power listed is maximum peak conducted output power. This filing meets the SAR threshold exclusion set forth in KDB 447498 and therefore can be used in mobile/portable configurations. The antenna used for this transmitter must not transmit simultaneously with any other antenna or transmitter, except in accordance with FCC multi-transmitter product procedures. |