FCC ID 2AFZZM2503E1
Wireless Earphones
by Xiaomi Communications Co., Ltd.
Grantee Code: 2AFZZ Product Code: M2503E1
Latest application date: 2025-07-10
FCC ID Device Details
| FCC ID | 2AFZZM2503E1 |
|---|---|
| Mirrors | fcc.id | gov | fccid.ai |
| Grantee Code | 2AFZZ |
| Product Code | M2503E1 |
| Applicant Business | Xiaomi Communications Co., Ltd. 🇨🇳 |
| Related Domains |  xiaomi.com |
| Equipment Class | Wireless Earphones |
| Test Firm | Huarui 7layers High Technology (Suzhou) Co., Ltd. |
Operating Frequencies
| Frequency Range | Application Purpose | Final Action Date |
|---|---|---|
| 2402-2480 MHz | Class II permissive change or modification of presently authorized equipment | 2025-07-10 |
| 2402-2480 MHz | Class II permissive change or modification of presently authorized equipment | 2025-07-10 |
| 2402-2480 MHz | Original Equipment | 2025-04-22 |
| 2402-2480 MHz | Original Equipment | 2025-04-22 |
Exhibits
| Document | Type | Available | File |
|---|---|---|---|
| user manual | Users Manual | 2025-10-19 | PDF 2.5 MB |
| internal photos_1 | Internal Photos | 2026-01-06 | PDF 5.8 MB |
| internal photos_2 | Internal Photos | 2026-01-06 | PDF 2.4 MB |
| antenna photos | Internal Photos | 2025-10-19 | PDF 177.9 KB |
| internal photos_1 | Internal Photos | 2025-10-19 | PDF 5.8 MB |
| internal photos_2 | Internal Photos | 2025-10-19 | PDF 5.7 MB |
| internal photos_3 | Internal Photos | 2025-10-19 | PDF 5.6 MB |
| external photos | External Photos | 2026-01-06 | PDF 1.5 MB |
| External photos | External Photos | 2025-10-19 | PDF 2.6 MB |
| Label and Label Location Declaration Letter | Cover Letter(s) | 2025-07-10 | PDF 95.4 KB |
| label | ID Label/Location Info | 2025-04-22 | PDF 525.9 KB |
| RF test setup photos | Test Setup Photos | 2026-01-06 | PDF 504.9 KB |
| SAR test setup photos | Test Setup Photos | 2026-01-06 | PDF 757.4 KB |
| test setup photos | Test Setup Photos | 2026-01-06 | PDF 777 KB |
| RF test setup photos | Test Setup Photos | 2025-10-19 | PDF 516.9 KB |
| SAR test setup photos | Test Setup Photos | 2025-10-19 | PDF 1,003.9 KB |
| test setup photos | Test Setup Photos | 2025-10-19 | PDF 811.8 KB |
| SAR test report | RF Exposure Info | 2025-07-10 | PDF 5.5 MB |
| test report | Test Report | 2025-07-10 | PDF 1.7 MB |
| test report_1 | Test Report | 2025-07-10 | PDF 5.6 MB |
| test report_1 | Test Report | 2025-07-10 | PDF 5.5 MB |
| test report_2 | Test Report | 2025-07-10 | PDF 1.4 MB |
| test report_2 | Test Report | 2025-07-10 | PDF 5.6 MB |
| test report_3 | Test Report | 2025-07-10 | PDF 4.3 MB |
| Antenna Report L | Test Report | 2025-04-22 | PDF 855.9 KB |
| Antenna Report R | Test Report | 2025-04-22 | PDF 875.1 KB |
| Antenna report L | Test Report | 2025-04-22 | PDF 855.9 KB |
| Antenna report R | Test Report | 2025-04-22 | PDF 875.1 KB |
| BLE test report | Test Report | 2025-04-22 | PDF 5.1 MB |
| BT test report_1 | Test Report | 2025-04-22 | PDF 4.5 MB |
| BT test report_2 | Test Report | 2025-04-22 | PDF 1.4 MB |
| SAR test report_1 | RF Exposure Info | 2025-04-22 | PDF 4.8 MB |
| SAR test report_2 | RF Exposure Info | 2025-04-22 | PDF 3.3 MB |
| test report | Test Report | 2025-04-22 | PDF 1.4 MB |
| Attestation Section 2.911(d)(5)(i)&(ii) | Attestation Statements | 2025-07-10 | PDF 144.2 KB |
| US Agent letter | Attestation Statements | 2025-07-10 | PDF 355.8 KB |
| Attestation Section 2.911(d)(5)(i)&(ii) | Attestation Statements | 2025-04-22 | PDF 111.4 KB |
| POA letter | Cover Letter(s) | 2025-07-10 | PDF 176.9 KB |
| Permission letter | Cover Letter(s) | 2025-07-10 | PDF 496.7 KB |
| confidentiality letter | Cover Letter(s) | 2025-07-10 | PDF 143.7 KB |
| Label Justification Letter | Cover Letter(s) | 2025-04-22 | PDF 63.8 KB |
| POA letter | Cover Letter(s) | 2025-04-22 | PDF 88.5 KB |
| confidentiality letter | Cover Letter(s) | 2025-04-22 | PDF 85.6 KB |
| Block Diagram_Charging case Metadata only | Block Diagram | PDF 127.5 KB | |
| Block Diagram_Earphones Metadata only | Block Diagram | PDF 503.3 KB | |
| Schematics_Charging case Metadata only | Schematics | PDF 132 KB | |
| Schematics_earphones_L_MAIN Metadata only | Schematics | PDF 486.3 KB | |
| Schematics_earphones_R_MAIN Metadata only | Schematics | PDF 488.7 KB | |
| Operatinal Description Metadata only | Operational Description | PDF 91.2 KB | |
| Operational Description Metadata only | Operational Description | PDF 91.2 KB | |
| BOM Metadata only | Parts List/Tune Up Info | PDF 221.5 KB | |
| Bom list Metadata only | Parts List/Tune Up Info | PDF 876.9 KB |
Application Information
| Application ID | RWoFX/Rjx3QQlQ2CiKY+3w== |
|---|---|
| Final Action Date | 2025-07-10 |
| Application Purpose | Class II permissive change or modification of presently authorized equipment |
| Applicant FRN | 0024904948 |
| Model | M2503E1 |
| Equipment Class | JBP - Part 15 Class B Computing Device Peripheral |
| Device Description | Wireless Earphones |
| Responsible Party | qingyao zeng, Certification Manager, mi-compliance@xiaomi.com , 010 6060 6666 |
| Test Firm | Yao Bin, Huarui 7layers High Technology (Suzhou) Co., Ltd., bin.yao@7layers.com  , +86 13910007241 |
| TCB Email | TEI@timcoengr.com  |
| TCB Scope | A1: Low Power Transmitters below 1 GHz (except Spread Spectrum), Unintentional Radiators, EAS (Part 11) & Consumer ISM devices |
| Short-Term Confidentiality | Yes |
| Short-Term Confidentiality Date | 01/06/2026 |
| Long-Term Confidentiality | Yes |
| Grant Deferral | No |
| Modular Equipment | Does not apply |
| Composite Device | Yes |
| Composite Part | No |
| Cognitive Radio | No |
| Authorization Waiver | No |
| Authorization Waiver Approved | No |
| Section 5301 Certification | Yes |
| Related OET Knowledge DataBase Inquiry | No |
| Grant Comments | Class II Permissive Change: Removed ESD Zener diodes from motherboard. |
Applications
| Application ID | Date | Purpose |
|---|---|---|
| RWoFX/Rjx3QQlQ2CiKY+3w== | 2025-07-10 | Class II permissive change or modification of presently authorized equipment |
| ETKykWxauT5sGhP5KKJjvw== | 2025-07-10 | Class II permissive change or modification of presently authorized equipment |
| /D0Yi0vpP3ytbrRxqR3Nxg== | 2025-07-10 | Class II permissive change or modification of presently authorized equipment |
| z3pB5XwH5ItC/MqvrL7isw== | 2025-04-22 | Original Equipment |
| Vm4yxYx2uYAD3PvKlp1k/Q== | 2025-04-22 | Original Equipment |
| 7hkO48bRnOwKMiSX5BeKmQ== | 2025-04-22 | Original Equipment |
Equipment Authorization
Grants
TCB Grant - Application z3pB5XwH5ItC/MqvrL7isw==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
IIA Lab Services, LLC 13146 NW 86th Drive Suite 400 Alachua, FL 32615 |
Date of Grant: 04/22/2025 Application Dated: 04/22/2025 |
| Xiaomi Communications Co., Ltd. |
| #019, 9th Floor, Building 6, |
| 33 Xi'erqi Middle Road, Haidian District, |
| Beijing, 100085 China |
| Attention: qingyao zeng , Certification 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: | 2AFZZM2503E1 |
| Name of Grantee: | Xiaomi Communications Co., Ltd. |
| Equipment Class: | Digital Transmission System |
| Notes: | Wireless Earphones |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| CC | 15C | 2402.0 - 2480.0 | 0.009 |
| Output Power listed is the maximum conducted output power. The highest reported SAR is and 0.85 W/kg. |
| CC: | This device is certified pursuant to two different Part 15 rules sections. |
TCB Grant - Application Vm4yxYx2uYAD3PvKlp1k/Q==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
IIA Lab Services, LLC 13146 NW 86th Drive Suite 400 Alachua, FL 32615 |
Date of Grant: 04/22/2025 Application Dated: 04/22/2025 |
| Xiaomi Communications Co., Ltd. |
| #019, 9th Floor, Building 6, |
| 33 Xi'erqi Middle Road, Haidian District, |
| Beijing, 100085 China |
| Attention: qingyao zeng , Certification 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: | 2AFZZM2503E1 |
| Name of Grantee: | Xiaomi Communications Co., Ltd. |
| Equipment Class: | Part 15 Spread Spectrum Transmitter |
| Notes: | Wireless Earphones |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| CC | 15C | 2402.0 - 2480.0 | 0.018 |
| Output Power listed is the maximum conducted output power. The highest reported SAR is 1.09W/kg. |
| CC: | This device is certified pursuant to two different Part 15 rules sections. |
TCB Grant - Application RWoFX/Rjx3QQlQ2CiKY+3w==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
IIA Lab Services, LLC 13146 NW 86th Drive Suite 400 Alachua, FL 32615 |
Date of Grant: 07/10/2025 Application Dated: 07/10/2025 |
| Xiaomi Communications Co., Ltd. |
| #019, 9th Floor, Building 6, |
| 33 Xi'erqi Middle Road, Haidian District, |
| Beijing, 100085 China |
| Attention: qingyao zeng , Certification 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: | 2AFZZM2503E1 |
| Name of Grantee: | Xiaomi Communications Co., Ltd. |
| Equipment Class: | Part 15 Class B Computing Device Peripheral |
| Notes: | Wireless Earphones |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| CC | 15B | - |
| Class II Permissive Change: Removed ESD Zener diodes from motherboard. |
| CC: | This device is certified pursuant to two different Part 15 rules sections. |
TCB Grant - Application ETKykWxauT5sGhP5KKJjvw==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
IIA Lab Services, LLC 13146 NW 86th Drive Suite 400 Alachua, FL 32615 |
Date of Grant: 07/10/2025 Application Dated: 07/10/2025 |
| Xiaomi Communications Co., Ltd. |
| #019, 9th Floor, Building 6, |
| 33 Xi'erqi Middle Road, Haidian District, |
| Beijing, 100085 China |
| Attention: qingyao zeng , Certification 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: | 2AFZZM2503E1 |
| Name of Grantee: | Xiaomi Communications Co., Ltd. |
| Equipment Class: | Part 15 Spread Spectrum Transmitter |
| Notes: | Wireless Earphones |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| CC | 15C | 2402.0 - 2480.0 | 0.018 |
| Output Power listed is the maximum conducted output power. The highest reported SAR is 1.09W/kg. Class II Permissive Change: Removed ESD Zener diodes from motherboard. |
| CC: | This device is certified pursuant to two different Part 15 rules sections. |
TCB Grant - Application 7hkO48bRnOwKMiSX5BeKmQ==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
IIA Lab Services, LLC 13146 NW 86th Drive Suite 400 Alachua, FL 32615 |
Date of Grant: 04/22/2025 Application Dated: 04/22/2025 |
| Xiaomi Communications Co., Ltd. |
| #019, 9th Floor, Building 6, |
| 33 Xi'erqi Middle Road, Haidian District, |
| Beijing, 100085 China |
| Attention: qingyao zeng , Certification 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: | 2AFZZM2503E1 |
| Name of Grantee: | Xiaomi Communications Co., Ltd. |
| Equipment Class: | Part 15 Class B Computing Device Peripheral |
| Notes: | Wireless Earphones |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| CC | 15B | - |
| CC: | This device is certified pursuant to two different Part 15 rules sections. |
TCB Grant - Application /D0Yi0vpP3ytbrRxqR3Nxg==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
IIA Lab Services, LLC 13146 NW 86th Drive Suite 400 Alachua, FL 32615 |
Date of Grant: 07/10/2025 Application Dated: 07/10/2025 |
| Xiaomi Communications Co., Ltd. |
| #019, 9th Floor, Building 6, |
| 33 Xi'erqi Middle Road, Haidian District, |
| Beijing, 100085 China |
| Attention: qingyao zeng , Certification 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: | 2AFZZM2503E1 |
| Name of Grantee: | Xiaomi Communications Co., Ltd. |
| Equipment Class: | Digital Transmission System |
| Notes: | Wireless Earphones |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| CC | 15C | 2402.0 - 2480.0 | 0.009 |
| Output Power listed is the maximum conducted output power. The highest reported SAR is 0.85 W/kg. Class II Permissive Change: Removed ESD Zener diodes from motherboard. |
| CC: | This device is certified pursuant to two different Part 15 rules sections. |