FCC ID 2AXV7-X21
Bone Conduction Headphones
by DongGuan Kemi Electronics Technology Co., Ltd
Grantee Code: 2AXV7 Product Code: X21
Latest application date: 2026-01-30
FCC ID Device Details
| FCC ID | 2AXV7-X21 |
|---|---|
| Mirrors | fcc.id | gov | fccid.ai |
| Grantee Code | 2AXV7 |
| Product Code | X21 |
| Applicant Business | DongGuan Kemi Electronics Technology Co., Ltd 🇨🇳 |
| Related Domains |  hyunturlee-commerce.com |
| Equipment Class | Bone Conduction Headphones |
| Test Firm | Shenzhen DL Testing Technology Co., Ltd. |
Operating Frequencies
| Frequency Range | Application Purpose | Final Action Date |
|---|---|---|
| 2402-2480 MHz | Original Equipment | 2026-01-30 |
Exhibits
| Document | Type | Available | File |
|---|---|---|---|
| 13_X21 Users Manual | Users Manual | 2026-01-30 | PDF 4.3 MB |
| 09_X21 Internal Photos | Internal Photos | 2026-01-30 | PDF 1.3 MB |
| 08_X21 External Photos | External Photos | 2026-01-30 | PDF 1.3 MB |
| 07_X21 Label Sample and Location | ID Label/Location Info | 2026-01-30 | PDF 77.3 KB |
| 15_X21 Test Setup Photos | Test Setup Photos | 2026-01-30 | PDF 727.4 KB |
| 14_X21 Test Report DSS | Test Report | 2026-01-30 | PDF 5 MB |
| 16_X21 Antenna Specification | Test Report | 2026-01-30 | PDF 1.2 MB |
| 02_X21 Covered Equipment Certification Attestation Letter-R1 | Attestation Statements | 2026-01-30 | PDF 117.7 KB |
| 03_X21 U.S. Agent Designation Attestation Letter-R1 | Attestation Statements | 2026-01-30 | PDF 146.6 KB |
| 04_X21 Authorization-Agent-R1 | Cover Letter(s) | 2026-01-30 | PDF 316.3 KB |
| 05_X21 Authorization-CT-R1 | Cover Letter(s) | 2026-01-30 | PDF 15.5 KB |
| 06_X21 Long-Confidential Request-R1 | Cover Letter(s) | 2026-01-30 | PDF 128.2 KB |
| 18_X21 Models Difference Declaration r1 | Cover Letter(s) | 2026-01-30 | PDF 116.2 KB |
| 17_X21 RF Exp Info | RF Exposure Info | 2026-01-30 | PDF 139 KB |
| 11_X21 Block Diagram Metadata only | Block Diagram | PDF 59.5 KB | |
| 12_X21 Schematics Metadata only | Schematics | PDF 62.9 KB | |
| 10_X21 Operational Description Metadata only | Operational Description | PDF 123.5 KB |
Application Information
| Application ID | sGKayIM2bfd02ZNWsvN1Ww== |
|---|---|
| Final Action Date | 2026-01-30 |
| Application Purpose | Original Equipment |
| Applicant FRN | 0037387255 |
| Model | X21 |
| Frequency Range | 2402-2480 MHz |
| Equipment Class | DSS - Part 15 Spread Spectrum Transmitter |
| Device Description | Bone Conduction Headphones |
| Responsible Party | Tiantang Chai, 729735513@qq.com  , 17318023119 |
| Non-Technical Contact | Jianfeng Gao, Herland International Trading Inc, jianfenggao@hyunturlee-commerce.com , (909) 772-1888 |
| Test Firm | Jade Yang, Shenzhen DL Testing Technology Co., Ltd., Jade.yang@dl-cert.com  , 400-688-3552 |
| TCB Email | tcbadmin@compliancetesting.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 |
|---|---|---|
| sGKayIM2bfd02ZNWsvN1Ww== | 2026-01-30 | Original Equipment |
Equipment Authorization
| Frequency | Output | Rules |
|---|---|---|
| 2402-2480 MHz | 0.0026 | 15C |
Grants
TCB Grant - Application sGKayIM2bfd02ZNWsvN1Ww==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
Compliance Testing, LLC 1724 S. Nevada Way Mesa, AZ 85204 |
Date of Grant: 01/30/2026 Application Dated: 01/29/2026 |
| DongGuan Kemi Electronics Technology Co., Ltd |
| Room 201, Floor 2, Building 4, Taixing Science |
| Park, No.3, Taixing Road, Shigu, Tangxia Town, |
| Dongguan City, China |
| Attention: Tiantang Chai , |
| 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: | 2AXV7-X21 |
| Name of Grantee: | DongGuan Kemi Electronics Technology Co., Ltd |
| Equipment Class: | Part 15 Spread Spectrum Transmitter |
| Notes: | Bone Conduction Headphones |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| 15C | 2402.0 - 2480.0 | 0.0026 |
| Power listed is conducted. |