FCC ID 2AFZZM2539E1
Wireless Earphones
by Xiaomi Communications Co., Ltd.
Grantee Code: 2AFZZ Product Code: M2539E1
Latest application date: 2025-11-18
FCC ID Device Details
| FCC ID | 2AFZZM2539E1 |
|---|---|
| Mirrors | fcc.id | gov | fccid.ai |
| Grantee Code | 2AFZZ |
| Product Code | M2539E1 |
| Applicant Business | Xiaomi Communications Co., Ltd. 🇨🇳 |
| Related Domains |  xiaomi.com  uttlab.com |
| Equipment Class | Wireless Earphones |
| Test Firm | Shenzhen UnionTrust Quality and Technology Co., Lt |
Operating Frequencies
| Frequency Range | Application Purpose | Final Action Date |
|---|---|---|
| 2402-2480 MHz | Original Equipment | 2025-11-18 |
| 2402-2480 MHz | Original Equipment | 2025-11-18 |
Exhibits
| Document | Type | Available | File |
|---|---|---|---|
| User Manual | Users Manual | 2026-05-18 | PDF 1.8 MB |
| 25082019553RFC-1_Appendix 2_EUT Internal Photos | Internal Photos | 2026-05-18 | PDF 3.8 MB |
| 25082019553RFC-1_Appendix 2_EUT External Photos | External Photos | 2026-05-18 | PDF 2.1 MB |
| Label Location Rev1 | ID Label/Location Info | 2025-11-18 | PDF 2.2 MB |
| 25082019553S_SAR test setup photos Rev1 | Test Setup Photos | 2026-05-18 | PDF 903.8 KB |
| 25082019553_APPENDIX 1_TEST SETUP_FCC Part 15B | Test Setup Photos | 2026-05-18 | PDF 473.4 KB |
| 25082019553_APPENDIX 1_TEST SETUP_FCC Part 15C | Test Setup Photos | 2026-05-18 | PDF 557.3 KB |
| 25082019553EMC-1_Class B Report | Test Report | 2025-11-18 | PDF 1.3 MB |
| 25082019553RFC-1_EDR Report_Part 1 | Test Report | 2025-11-18 | PDF 1.7 MB |
| 25082019553RFC-1_EDR Report_Part 2 | Test Report | 2025-11-18 | PDF 5.7 MB |
| 25082019553RFC-2_BLE Report | Test Report | 2025-11-18 | PDF 5.7 MB |
| Antenna Specifications | Test Report | 2025-11-18 | PDF 1.4 MB |
| M2539E1_ACB-FORM-FCC-Application-Letters-Covered-List-Attestation | Attestation Statements | 2025-11-18 | PDF 134.3 KB |
| M2539E1_US-Agent-Letter Rev1 | Attestation Statements | 2025-11-18 | PDF 171 KB |
| ACB-FORM-FCC-Application-Letters-Confidentiality-Letter Rev1 | Cover Letter(s) | 2025-11-18 | PDF 92.3 KB |
| M2539E1_Letters-Agency-Letter | Cover Letter(s) | 2025-11-18 | PDF 39.9 KB |
| 25082019553SAR-1_Appendix C | RF Exposure Info | 2025-11-18 | PDF 1.1 MB |
| 25082019553SAR-1_SAR_Report Rev1 | RF Exposure Info | 2025-11-18 | PDF 1.4 MB |
| Block Diagram Metadata only | Block Diagram | PDF 546.6 KB | |
| Schematics Metadata only | Schematics | PDF 2.2 MB | |
| Operational Description Metadata only | Operational Description | PDF 495.7 KB | |
| 25082019553SAR-1_Tune Up Procedure Metadata only | Parts List/Tune Up Info | PDF 36.8 KB |
Application Information
| Application ID | mPs2c32emmLvvxd38ssaLw== |
|---|---|
| Final Action Date | 2025-11-18 |
| Application Purpose | Original Equipment |
| Applicant FRN | 0024904948 |
| Model | M2539E1 |
| Frequency Range | 2402-2480 MHz |
| Equipment Class | DSS - Part 15 Spread Spectrum Transmitter |
| Device Description | Wireless Earphones |
| Responsible Party | qingyao zeng, mi-compliance@xiaomi.com , 010 6060 6666 |
| Technical Contact | Billy Li, Shenzhen UnionTrust Quality and Technology Co., Lt, billy.li@uttlab.com , 86-755-28230888 |
| Non-Technical Contact | Billy Li, Shenzhen UnionTrust Quality and Technology Co., Lt, billy.li@uttlab.com , 86-755-28230888 |
| 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 | Yes |
| 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 |
|---|---|---|
| mPs2c32emmLvvxd38ssaLw== | 2025-11-18 | Original Equipment |
| h5Q3LWpyTEr5Iv/5uH+9+g== | 2025-11-18 | Original Equipment |
| WjM7/bcUF/qn1Okiamg/mQ== | 2025-11-18 | Original Equipment |
Equipment Authorization
Grants
TCB Grant - Application WjM7/bcUF/qn1Okiamg/mQ==
| 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: 11/18/2025 Application Dated: 11/18/2025 |
| 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: | 2AFZZM2539E1 |
| Name of Grantee: | Xiaomi Communications Co., Ltd. |
| Equipment Class: | Part 15 Class B Digital Device |
| Notes: | Wireless Earphones |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| CC | 15B | - |
| This device also contains Bluetooth and BLE transmitters. |
| CC: | This device is certified pursuant to two different Part 15 rules sections. |
TCB Grant - Application mPs2c32emmLvvxd38ssaLw==
| 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: 11/18/2025 Application Dated: 11/18/2025 |
| 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: | 2AFZZM2539E1 |
| 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 | 0.02366 |
| Power Output listed is conducted. The SAR data in this filing is applicable to demonstrate compliance for the USB adapter only as shown in this filing. End-users and installers must be provided with antenna installation instructions and transmitter operating conditions for satisfying RF exposure compliance. The antenna used for this transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. The highest reported head-SAR value is 0.94 W/kg. This device also contains BLE transmitter. |
| CC: | This device is certified pursuant to two different Part 15 rules sections. |
TCB Grant - Application h5Q3LWpyTEr5Iv/5uH+9+g==
| 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: 11/18/2025 Application Dated: 11/18/2025 |
| 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: | 2AFZZM2539E1 |
| 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 | 0.00485 |
| Power Output listed is conducted. The SAR data in this filing is applicable to demonstrate compliance for the USB adapter only as shown in this filing. End-users and installers must be provided with antenna installation instructions and transmitter operating conditions for satisfying RF exposure compliance. The antenna used for this transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. The highest reported head-SAR value is 0.94 W/kg. This device also contains Bluetooth transmitter. |
| CC: | This device is certified pursuant to two different Part 15 rules sections. |