FCC ID 2A4IK-M23
Electronic Bluetooth hearing protection earplugs
by OPSMEN Tech Co., Ltd.
Grantee Code: 2A4IK Product Code: M23
Latest application date: 2026-07-02
FCC ID Device Details
Operating Frequencies
| Frequency Range | Application Purpose | Final Action Date |
|---|---|---|
| 2402-2480 MHz | Original Equipment | 2026-07-02 |
| 2402-2480 MHz | Original Equipment | 2026-07-02 |
Exhibits
| Document | Type | Available | File |
|---|---|---|---|
| User manual | Users Manual | 2026-07-02 | PDF 2.6 MB |
| Internal photos | Internal Photos | 2026-07-02 | PDF 1.4 MB |
| External photos | External Photos | 2026-07-02 | PDF 1.5 MB |
| ID label and location | ID Label/Location Info | 2026-07-02 | PDF 238.8 KB |
| Test Setup photo | Test Setup Photos | 2026-07-02 | PDF 2.6 MB |
| Antenna Specification | Test Report | 2026-07-02 | PDF 654.4 KB |
| Test report BLE | Test Report | 2026-07-02 | PDF 5.9 MB |
| Test report BT | Test Report | 2026-07-02 | PDF 4.8 MB |
| Attestation Statement | Attestation Statements | 2026-07-02 | PDF 431.5 KB |
| Kaspersky Statement | Attestation Statements | 2026-07-02 | PDF 672.8 KB |
| Label FCC ID number statement | Attestation Statements | 2026-07-02 | PDF 71 KB |
| Product similarity Declaration | Attestation Statements | 2026-07-02 | PDF 69.1 KB |
| TCB_validation_US_agent_process | Attestation Statements | 2026-07-02 | PDF 1.1 MB |
| Us_Agent | Attestation Statements | 2026-07-02 | PDF 158.4 KB |
| Confidentiality | Cover Letter(s) | 2026-07-02 | PDF 476.4 KB |
| Letter Authorization | Cover Letter(s) | 2026-07-02 | PDF 211.1 KB |
| RF Exposure | RF Exposure Info | 2026-07-02 | PDF 333.5 KB |
| Block Diagram Metadata only | Block Diagram | PDF 49.5 KB | |
| Schematics Metadata only | Schematics | PDF 495.7 KB | |
| Operational Description Metadata only | Operational Description | PDF 156.4 KB |
Application Information
| Application ID | lSfWdzf7AcOewihdijFpWg== |
|---|---|
| Final Action Date | 2026-07-02 |
| Application Purpose | Original Equipment |
| Applicant FRN | 0031971831 |
| Model | M23 |
| Frequency Range | 2402-2480 MHz |
| Equipment Class | DSS - Part 15 Spread Spectrum Transmitter |
| Device Description | Electronic Bluetooth hearing protection earplugs |
| Responsible Party | Di Sheng Zhang, 2431713042@qq.com  , +86 15989049554 |
| Technical Contact | Leon Chen, Shenzhen Microtest Co., Ltd, leon@51mti.com  , +86-755 88850135 |
| Non-Technical Contact | lvan Wang, Picus Advisors US LLC, ivan.wang@picus.fi  , (713) 391-4488 |
| Test Firm | Tina Huang, Shenzhen Microtest Co., Ltd., tinahuang@51mti.com , 0755-88850135-1132 |
| TCB Email | elabscert@applus.com  |
| 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 | Yes |
| 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 |
|---|---|---|
| lSfWdzf7AcOewihdijFpWg== | 2026-07-02 | Original Equipment |
| iCv+Kn0dUrhtYgf+8EOdfQ== | 2026-07-02 | Original Equipment |
Equipment Authorization
Grants
TCB Grant - Application lSfWdzf7AcOewihdijFpWg==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
LGAI Technological Center S.A. (APPLUS) Ronda de la Font del Carme, s/n <BR>P.O. Box 08193, Barcelona, Spain |
Date of Grant: 07/02/2026 Application Dated: 07/02/2026 |
| OPSMEN Tech Co., Ltd. |
| Room 601, Building A, No.94 Liwan Road, |
| Liwan District, |
| Guangzhou, 510370 China |
| Attention: Di Sheng Zhang , Deputy Manager |
| 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: | 2A4IK-M23 |
| Name of Grantee: | OPSMEN Tech Co., Ltd. |
| Equipment Class: | Part 15 Spread Spectrum Transmitter |
| Notes: | Electronic Bluetooth hearing protection earplugs |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| CC | 15C | 2402.0 - 2480.0 | 0.0028 |
| Output power listed is conducted. |
| CC: | This device is certified pursuant to two different Part 15 rules sections. |
TCB Grant - Application iCv+Kn0dUrhtYgf+8EOdfQ==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
LGAI Technological Center S.A. (APPLUS) Ronda de la Font del Carme, s/n <BR>P.O. Box 08193, Barcelona, Spain |
Date of Grant: 07/02/2026 Application Dated: 07/02/2026 |
| OPSMEN Tech Co., Ltd. |
| Room 601, Building A, No.94 Liwan Road, |
| Liwan District, |
| Guangzhou, 510370 China |
| Attention: Di Sheng Zhang , Deputy Manager |
| 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: | 2A4IK-M23 |
| Name of Grantee: | OPSMEN Tech Co., Ltd. |
| Equipment Class: | Digital Transmission System |
| Notes: | Electronic Bluetooth hearing protection earplugs |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| CC | 15C | 2402.0 - 2480.0 | 0.0023 |
| Output power listed is conducted. |
| CC: | This device is certified pursuant to two different Part 15 rules sections. |