FCC ID R56-FC4001
Open Wearable Stereo earphone
by Guangzhou FiiO Electronic Technology Co., Ltd.
Grantee Code: R56 Product Code: FC4001
Latest application date: 2026-07-17
FCC ID Device Details
| FCC ID | R56-FC4001 |
|---|---|
| Mirrors | fcc.id | gov | fccid.ai |
| Grantee Code | R56 |
| Product Code | FC4001 |
| Applicant Business | Guangzhou FiiO Electronic Technology Co., Ltd. 🇨🇳 |
| Related Domains |  fiio.com.cn  tekfx.com |
| Equipment Class | Open Wearable Stereo earphone |
| Test Firm | Shenzhen Microtest Co., Ltd. |
Operating Frequencies
| Frequency Range | Application Purpose | Final Action Date |
|---|---|---|
| 2402-2480 MHz | Original Equipment | 2026-07-17 |
| 2402-2480 MHz | Original Equipment | 2026-07-17 |
Exhibits
| Document | Type | Available | File |
|---|---|---|---|
| User manual | Users Manual | 2026-07-17 | PDF 300 KB |
| Internal photos | Internal Photos | 2026-07-17 | PDF 1.9 MB |
| External photos | External Photos | 2026-07-17 | PDF 1.6 MB |
| ID label and location | ID Label/Location Info | 2026-07-17 | PDF 292.2 KB |
| Test Setup photo | Test Setup Photos | 2026-07-17 | PDF 2.7 MB |
| Antenna Specification | Test Report | 2026-07-17 | PDF 5.3 MB |
| Test report BLE | Test Report | 2026-07-17 | PDF 3.2 MB |
| Test report BT | Test Report | 2026-07-17 | PDF 4.7 MB |
| Attestation Statement | Attestation Statements | 2026-07-17 | PDF 428.1 KB |
| Kaspersky Statement | Attestation Statements | 2026-07-17 | PDF 675 KB |
| Label FCC ID number statement | Attestation Statements | 2026-07-17 | PDF 70.5 KB |
| Product similarity Declaration | Attestation Statements | 2026-07-17 | PDF 71.8 KB |
| TCB_validation_US_agent_process | Attestation Statements | 2026-07-17 | PDF 1.3 MB |
| Us_Agent | Attestation Statements | 2026-07-17 | PDF 153.8 KB |
| Confidentiality | Cover Letter(s) | 2026-07-17 | PDF 473 KB |
| Letter Authorization | Cover Letter(s) | 2026-07-17 | PDF 244.8 KB |
| RF Exposure | RF Exposure Info | 2026-07-17 | PDF 347.3 KB |
| Block Diagram Metadata only | Block Diagram | PDF 121 KB | |
| Schematics Metadata only | Schematics | PDF 156.4 KB | |
| Operational Description Metadata only | Operational Description | PDF 226.4 KB |
Application Information
| Application ID | ulA05TuAhwG/ydrRkZbFeg== |
|---|---|
| Final Action Date | 2026-07-17 |
| Application Purpose | Original Equipment |
| Applicant FRN | 0022263586 |
| Model | FC4001 |
| Frequency Range | 2402-2480 MHz |
| Equipment Class | DSS - Part 15 Spread Spectrum Transmitter |
| Device Description | Open Wearable Stereo earphone |
| Responsible Party | Kevin Chen, cxj@fiio.com.cn , 00862062679040 |
| Technical Contact | Leon Chen, Shenzhen Microtest Co., Ltd, leon@51mti.com  , +86-755 88850135 |
| Non-Technical Contact | Michael Wang, TekFX Logistics LLC, michael@tekfx.com , 703-665-9588 |
| 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 |
|---|---|---|
| ulA05TuAhwG/ydrRkZbFeg== | 2026-07-17 | Original Equipment |
| EFyyoSlFr0WBUOpQuNPzlg== | 2026-07-17 | Original Equipment |
Equipment Authorization
Grants
TCB Grant - Application ulA05TuAhwG/ydrRkZbFeg==
| 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: 07/17/2026 Application Dated: 07/16/2026 |
| Guangzhou FiiO Electronic Technology Co., Ltd. |
| No.21, Longliang Road, Xialiang Village, |
| Longgui Street, Baiyun District |
| Guangzhou, Guangdong, P.R., China |
| Attention: Kevin Chen , QA 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: | R56-FC4001 |
| Name of Grantee: | Guangzhou FiiO Electronic Technology Co., Ltd. |
| Equipment Class: | Part 15 Spread Spectrum Transmitter |
| Notes: | Open Wearable Stereo earphone |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| CC | 15C | 2402.0 - 2480.0 | 0.0009 |
| Output power listed is conducted. |
| CC: | This device is certified pursuant to two different Part 15 rules sections. |
TCB Grant - Application EFyyoSlFr0WBUOpQuNPzlg==
| 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: 07/17/2026 Application Dated: 07/16/2026 |
| Guangzhou FiiO Electronic Technology Co., Ltd. |
| No.21, Longliang Road, Xialiang Village, |
| Longgui Street, Baiyun District |
| Guangzhou, Guangdong, P.R., China |
| Attention: Kevin Chen , QA 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: | R56-FC4001 |
| Name of Grantee: | Guangzhou FiiO Electronic Technology Co., Ltd. |
| Equipment Class: | Digital Transmission System |
| Notes: | Open Wearable Stereo earphone |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| CC | 15C | 2402.0 - 2480.0 | 0.0006 |
| Output power listed is conducted. |
| CC: | This device is certified pursuant to two different Part 15 rules sections. |