FCC ID 2AO23-TWS09
TWS Active Noise Canceling Earbuds
by Chug, Inc.
Grantee Code: 2AO23 Product Code: TWS09
Latest application date: 2026-07-27
FCC ID Device Details
| FCC ID | 2AO23-TWS09 |
|---|---|
| Mirrors | fcc.id | gov | fccid.ai |
| Grantee Code | 2AO23 |
| Product Code | TWS09 |
| Applicant Business | Chug, Inc. 🇺🇸 |
| Equipment Class | TWS Active Noise Canceling Earbuds |
| Test Firm | Shenzhen UnionTrust Quality and Technology Co., Lt |
Operating Frequencies
| Frequency Range | Application Purpose | Final Action Date |
|---|---|---|
| 2402-2480 MHz | Class II permissive change or modification of presently authorized equipment | 2026-07-27 |
| 2402-2480 MHz | Original Equipment | 2023-07-04 |
Exhibits
| Document | Type | Available | File |
|---|---|---|---|
| User Manual | Users Manual | 2023-07-04 | PDF 3.8 MB |
| APPENDIX 2_EUT Internal Photos | Internal Photos | 2026-07-27 | PDF 3 MB |
| Internal Photos | Internal Photos | 2023-07-04 | PDF 2.9 MB |
| APPENDIX 2_EUT External Photos | External Photos | 2026-07-27 | PDF 2.5 MB |
| External Photos | External Photos | 2023-07-04 | PDF 2 MB |
| ID Label and Location_Package | ID Label/Location Info | 2023-07-04 | PDF 713.6 KB |
| Antenna specification | Operational Description | 2023-07-04 | PDF 1,014.4 KB |
| APPENDIX 1_TEST SETUP | Test Setup Photos | 2026-07-27 | PDF 556.6 KB |
| Test Setup Photos | Test Setup Photos | 2023-07-04 | PDF 496.1 KB |
| 2305255331RFC-1R1_EDR Report | Test Report | 2026-07-27 | PDF 4.4 MB |
| Test Report_Part 1 of 2 | Test Report | 2023-07-04 | PDF 4.1 MB |
| Test Report_Part 2 of 2 | Test Report | 2023-07-04 | PDF 2.8 MB |
| ACB-FORM-FCC-Application-Letters-Covered-List-Attestation | Attestation Statements | 2026-07-27 | PDF 392.4 KB |
| ACB-FORM-FCC-Application-Letters-US_Agent-Letter-for-Service-of-Process | Attestation Statements | 2026-07-27 | PDF 223.4 KB |
| Attestation of Not Covered Equipment Metadata only | Attestation Statements | 2023-07-04 | PDF 65.4 KB |
| Not Covered Entity Applicant | Attestation Statements | 2023-07-04 | PDF 76.7 KB |
| Not Covered Equipment Attestation | Attestation Statements | 2023-07-04 | PDF 65.4 KB |
| US Agency Attestation Letter | Attestation Statements | 2023-07-04 | PDF 110.8 KB |
| 2AO23-TWS09_C2PC letter | Cover Letter(s) | 2026-07-27 | PDF 656.8 KB |
| ACB-FORM-FCC-Application-Letters-Agency-Letter | Cover Letter(s) | 2026-07-27 | PDF 105.6 KB |
| ACB-FORM-FCC-Application-Letters-Confidentiality-Letter | Cover Letter(s) | 2026-07-27 | PDF 220.9 KB |
| Agency Letter | Cover Letter(s) | 2023-07-04 | PDF 147.8 KB |
| Confidentiality Letter | Cover Letter(s) | 2023-07-04 | PDF 125.4 KB |
| Declaration of Identity | Cover Letter(s) | 2023-07-04 | PDF 68.8 KB |
| 2305255331RFC-2_SAR Test Exclusion Evaluation Repot | RF Exposure Info | 2026-07-27 | PDF 794 KB |
| RF Exposure Info | RF Exposure Info | 2023-07-04 | PDF 794 KB |
| Block Diagram Metadata only | Block Diagram | PDF 58.1 KB | |
| R1301A_JL7003A8_SCH Metadata only | Schematics | PDF 70.4 KB | |
| Schematics Metadata only | Schematics | PDF 65.1 KB | |
| Operational Description Metadata only | Operational Description | PDF 143.4 KB |
Application Information
| Application ID | WHCGJiLhYcZVzz0LjEwWzg== |
|---|---|
| Final Action Date | 2026-07-27 |
| Application Purpose | Class II permissive change or modification of presently authorized equipment |
| Applicant FRN | 0027222264 |
| Model | TWS09 |
| Frequency Range | 2402-2480 MHz |
| Equipment Class | DSS - Part 15 Spread Spectrum Transmitter |
| Device Description | TWS Active Noise Canceling Earbuds |
| Responsible Party | Michael Clemmer, mikeclemmer@gmail.com  , 612-868-2191 |
| Technical Contact | Billy Li, Shenzhen UnionTrust Quality and Technology Co., Lt, billy.li@uttlab.com  , +86-755-28230888 |
| Non-Technical Contact | Michael Clemmer, Chug,Inc., mikeclemmer@gmail.com |
| Test Firm | George Luo, Shenzhen UnionTrust Quality and Technology Co., Lt, quality@uttlab.com , 86-755-28230888 |
| TCB Email | hotline@acbcert.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 | 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 |
|---|---|---|
| WHCGJiLhYcZVzz0LjEwWzg== | 2026-07-27 | Class II permissive change or modification of presently authorized equipment |
| zhYqnX+8lzKDg5tgJfygAA== | 2023-07-04 | Original Equipment |
Equipment Authorization
| Frequency | Output | Rules |
|---|---|---|
| 2402-2480 MHz | 0.0026000 | 15C |
Grants
TCB Grant - Application zhYqnX+8lzKDg5tgJfygAA==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
TUV Rheinland of North America, Inc. 1279 Quarry Lane Suite A Pleasanton, CA 94566 |
Date of Grant: 07/04/2023 Application Dated: 07/04/2023 |
| Chug, Inc. |
| 7157 Shady Oak Road Eden Prairie |
| Washington, MN 55344 |
| Attention: Michael Clemmer , general 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: | 2AO23-TWS09 |
| Name of Grantee: | Chug, Inc. |
| Equipment Class: | Part 15 Spread Spectrum Transmitter |
| Notes: | TWS Active Noise Canceling Earbuds |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| 15C | 2402.0 - 2480.0 | 0.0026 |
| Power output listed is conducted. |
EAS Grant - Application zhYqnX+8lzKDg5tgJfygAA==
| COPY |
FEDERAL COMMUNICATIONS COMMISSION WASHINGTON, D.C. 20554 GRANT OF EQUIPMENT AUTHORIZATION |
COPY |
| Certification |
|
Chug, Inc. 7157 Shady Oak Road Eden Prairie Washington, MN 55344 United States |
Date of Grant: 07/04/2023 Application Dated: 07/04/2023 |
| Attention: Michael Clemmer , general 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: | 2AO23-TWS09 |
| Name of Grantee: | Chug, Inc. |
| Equipment Class: | Part 15 Spread Spectrum Transmitter |
| Notes: | TWS Active Noise Canceling Earbuds |
| Modular Type: | Does not apply |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| 15C | 2402.0 - 2480.0 | 0.0026 |
| Power output listed is conducted. |
| Mail To: | |||||||||||||||||||||||||||||||||||||||||||
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
ACB, Inc. 313 Park Avenue Suite 300 Falls Church, VA 22046 |
Date of Grant: 07/27/2026 Application Dated: 07/27/2026 |
| Chug, Inc. |
| 7157 Shady Oak Road |
| Eden Prairie, MN 55344 |
| Attention: Michael Clemmer , general 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: | 2AO23-TWS09 |
| Name of Grantee: | Chug, Inc. |
| Equipment Class: | Part 15 Spread Spectrum Transmitter |
| Notes: | TWS Active Noise Canceling Earbuds |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| 15C | 2402.0 - 2480.0 | 0.0026 |
| Class II Permissive Change as described in this filing. Power Output listed is conducted. End-users and installers must be provided with antenna installation instructions and transmitter operating conditions for satisfying RF exposure compliance. |