FCC ID 2BYCH-SFT40
Hybrid Audio Processor
by Changsha Melofty Audio Technology Co., Ltd.
Grantee Code: 2BYCH Product Code: SFT40
Latest application date: 2026-10-11
FCC ID Device Details
| FCC ID | 2BYCH-SFT40 |
|---|---|
| Mirrors | fcc.id | gov | fccid.ai |
| Grantee Code | 2BYCH |
| Product Code | SFT40 |
| Applicant Business | Changsha Melofty Audio Technology Co., Ltd. 🇨🇳 |
| Related Domains |  meloftyaudio.com |
| Equipment Class | Hybrid Audio Processor |
| Test Firm | Shenzhen PSI Testing Co., Ltd. |
Operating Frequencies
| Frequency Range | Application Purpose | Final Action Date |
|---|---|---|
| 2402-2480 MHz | Original Equipment | 2026-10-11 |
| 2412-2462 MHz | Original Equipment | 2026-10-11 |
Exhibits
| Document | Type | Available | File |
|---|---|---|---|
| User manual | Users Manual | 2026-10-11 | PDF 331.9 KB |
| psi2604038-C01-R05 Appendix III internal photos | Internal Photos | 2026-10-11 | PDF 2 MB |
| psi2604038-C01-R05 Appendix II external photos | External Photos | 2026-10-11 | PDF 1,000.9 KB |
| Label and Label Location | ID Label/Location Info | 2026-10-11 | PDF 73.2 KB |
| Test Setup Photo-DSS | Test Setup Photos | 2026-10-11 | PDF 629.7 KB |
| ANT 1 | Test Report | 2026-10-11 | PDF 399.4 KB |
| ANT 2 | Test Report | 2026-10-11 | PDF 1,008 KB |
| Ant 1 | Test Report | 2026-10-11 | PDF 399.4 KB |
| Ant 2 | Test Report | 2026-10-11 | PDF 1,008 KB |
| Ant 3 | Test Report | 2026-10-11 | PDF 777.2 KB |
| psi2604038-C01-R05 FCC PART 15.247_BT LE | Test Report | 2026-10-11 | PDF 3.6 MB |
| psi2604038-C01-R06 FCC 15.247_BT EDR | Test Report | 2026-10-11 | PDF 5.8 MB |
| psi2604038-C01-R07 FCC 15.247_2.4G WIFI | Test Report | 2026-10-11 | PDF 5.3 MB |
| 2.911_(d)(5)(i) Certification Equipment Type v1.2 | Attestation Statements | 2026-10-11 | PDF 603.7 KB |
| 2.911_(d)(5)(ii) Certificiation Applicant v1.3 | Attestation Statements | 2026-10-11 | PDF 592.4 KB |
| US_Agent_Letter | Attestation Statements | 2026-10-11 | PDF 227.7 KB |
| FCC Letter of Authorization Rev 1.0 | Cover Letter(s) | 2026-10-11 | PDF 215 KB |
| FCC Short & Long Term Confidentiality Request Rev4.1 | Cover Letter(s) | 2026-10-11 | PDF 300.5 KB |
| psi2604038-C01-R05 Appendix IV FCC MPE | RF Exposure Info | 2026-10-11 | PDF 148.6 KB |
| BLOCK Metadata only | Block Diagram | PDF 729.8 KB | |
| SCH Metadata only | Schematics | PDF 2.1 MB | |
| Operation of Description Metadata only | Operational Description | PDF 117.2 KB |
Application Information
| Application ID | krsX3aeM71/JXuJ7lgaqZw== |
|---|---|
| Final Action Date | 2026-10-11 |
| Application Purpose | Original Equipment |
| Applicant FRN | 0038899969 |
| Model | SFT40 |
| Frequency Range | 2402-2480 MHz |
| Equipment Class | DSS - Part 15 Spread Spectrum Transmitter |
| Device Description | Hybrid Audio Processor |
| Responsible Party | PING SHEN, info@meloftyaudio.com , 15999576346 |
| Technical Contact | Changsha Melofty Audio Technology Co., Ltd., 2844687404@qq.com  |
| Non-Technical Contact | Yangyang Xu, HOPEK CORPORATION INC, HopekPeter@gmail.com  , 561-875-9826 |
| Test Firm | Simple Guan, Shenzhen PSI Testing Co., Ltd., simple.guan@psi-lab.cn  , 86-0755-23019820 |
| TCB Email | certification@micomlabs.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 |
|---|---|---|
| krsX3aeM71/JXuJ7lgaqZw== | 2026-10-11 | Original Equipment |
| 6ZibJyfwKlW7L9nCy6R/Gg== | 2026-10-11 | Original Equipment |
Equipment Authorization
Grants
TCB Grant - Application krsX3aeM71/JXuJ7lgaqZw==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
MiCOM Labs 575 Boulder Court Pleasanton, CA 94566 |
Date of Grant: 10/11/2026 Application Dated: 10/12/2026 |
| Changsha Melofty Audio Technology Co., Ltd. |
| Room 402, Building B-8, Huanchuang Park,2450 |
| Yuelu West Avenue, Dongfanghong Subdistrict, |
| Hi-Tech Development District,Changsha,Hunan, China |
| Attention: PING SHEN , 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: | 2BYCH-SFT40 |
| Name of Grantee: | Changsha Melofty Audio Technology Co., Ltd. |
| Equipment Class: | Part 15 Spread Spectrum Transmitter |
| Notes: | Hybrid Audio Processor |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| CC | 15C | 2402.0 - 2480.0 | 0.00085 |
| Power listed is the maximum conducted output power. The antenna used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter, except in accordance with FCC multi- transmitter product procedures. End-Users must be provided with transmitter operation conditions for satisfying RF exposure compliance. |
| CC: | This device is certified pursuant to two different Part 15 rules sections. |
TCB Grant - Application 6ZibJyfwKlW7L9nCy6R/Gg==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
MiCOM Labs 575 Boulder Court Pleasanton, CA 94566 |
Date of Grant: 10/11/2026 Application Dated: 10/12/2026 |
| Changsha Melofty Audio Technology Co., Ltd. |
| Room 402, Building B-8, Huanchuang Park,2450 |
| Yuelu West Avenue, Dongfanghong Subdistrict, |
| Hi-Tech Development District,Changsha,Hunan, China |
| Attention: PING SHEN , 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: | 2BYCH-SFT40 |
| Name of Grantee: | Changsha Melofty Audio Technology Co., Ltd. |
| Equipment Class: | Digital Transmission System |
| Notes: | Hybrid Audio Processor |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| CC | 15C | 2402.0 - 2480.0 | 0.0006 | ||
| CC | 15C | 2412.0 - 2462.0 | 0.04426 |
| Power listed is the maximum conducted output power. This device contains 20 and 40 MHz signal bandwidth. The antenna used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter, except in accordance with FCC multi- transmitter product procedures. End-Users must be provided with transmitter operation conditions for satisfying RF exposure compliance. |
| CC: | This device is certified pursuant to two different Part 15 rules sections. |