FCC ID 2A63XKST-620
Wireless headphone
by Shenzhen Huijinzhicheng Technology Co., Limited
Grantee Code: 2A63X Product Code: KST620
Latest application date: 2026-08-19
FCC ID Device Details
| FCC ID | 2A63XKST-620 |
|---|---|
| Mirrors | fcc.id | gov | fccid.ai |
| Grantee Code | 2A63X |
| Product Code | KST620 |
| Applicant Business | Shenzhen Huijinzhicheng Technology Co., Limited 🇨🇳 |
| Related Domains |  szhjzc.com  antekservice.com |
| Equipment Class | Wireless headphone |
| Test Firm | Shenzhen BCTC Technology Co., Ltd. |
Operating Frequencies
| Frequency Range | Application Purpose | Final Action Date |
|---|---|---|
| 2402-2480 MHz | Original Equipment | 2026-08-19 |
| 2402-2480 MHz | Original Equipment | 2026-08-19 |
Exhibits
| Document | Type | Available | File |
|---|---|---|---|
| Users Manual | Users Manual | 2026-08-19 | PDF 5.1 MB |
| Internal Photos | Internal Photos | 2026-08-19 | PDF 693.8 KB |
| External Photos | External Photos | 2026-08-19 | PDF 889.2 KB |
| ID Label/Location Info | ID Label/Location Info | 2026-08-19 | PDF 157.5 KB |
| Test Setup Photos | Test Setup Photos | 2026-08-19 | PDF 255.9 KB |
| ANT Test Report | Test Report | 2026-08-19 | PDF 1.1 MB |
| Test Report | Test Report | 2026-08-19 | PDF 3.4 MB |
| Test Report 1 | Test Report | 2026-08-19 | PDF 4.3 MB |
| Test Report 2 | Test Report | 2026-08-19 | PDF 3.2 MB |
| Attestation Statements | Attestation Statements | 2026-08-19 | PDF 438.3 KB |
| US agent | Attestation Statements | 2026-08-19 | PDF 1.2 MB |
| Agent Authorization | Cover Letter(s) | 2026-08-19 | PDF 125.5 KB |
| Long term Confidentiality Letter | Cover Letter(s) | 2026-08-19 | PDF 127.6 KB |
| Model Difference | Cover Letter(s) | 2026-08-19 | PDF 145.3 KB |
| RF Exposure Info | RF Exposure Info | 2026-08-19 | PDF 126.4 KB |
| Block Diagram Metadata only | Block Diagram | PDF 127.6 KB | |
| Schematics Metadata only | Schematics | PDF 175 KB | |
| Operational Description Metadata only | Operational Description | PDF 1.7 MB |
Application Information
| Application ID | yFioOYu7yNVoorf0kiA0/w== |
|---|---|
| Final Action Date | 2026-08-19 |
| Application Purpose | Original Equipment |
| Applicant FRN | 0032453144 |
| Model | KST-620 |
| Frequency Range | 2402-2480 MHz |
| Equipment Class | DSS - Part 15 Spread Spectrum Transmitter |
| Device Description | Wireless headphone |
| Responsible Party | Kunta Chen, kunta@szhjzc.com , +86 13632759759 |
| Non-Technical Contact | Shirley Kwok, ANTEK SERVICE INC, info@antekservice.com , +01 303-8006306 |
| Test Firm | Sally He, Shenzhen BCTC Technology Co., Ltd., sally.he@bctc-lab.com.cn  , +86 159 9969 0624 |
| TCB Email | tcb@metlabs.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 |
|---|---|---|
| yFioOYu7yNVoorf0kiA0/w== | 2026-08-19 | Original Equipment |
| G9mcfkErQipwm5ZQpVYsnA== | 2026-08-19 | Original Equipment |
Equipment Authorization
Grants
TCB Grant - Application yFioOYu7yNVoorf0kiA0/w==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230-3432 |
Date of Grant: 08/19/2026 Application Dated: 08/19/2026 |
| Shenzhen Huijinzhicheng Technology Co., Limited |
| Room 412, 4rd Floor, No. 330, Pinghu Street, |
| Longgang District, |
| Shenzhen, China |
| Attention: Kunta Chen , 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: | 2A63XKST-620 |
| Name of Grantee: | Shenzhen Huijinzhicheng Technology Co., Limited |
| Equipment Class: | Part 15 Spread Spectrum Transmitter |
| Notes: | Wireless headphone |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| CC | 15C | 2402.0 - 2480.0 | 0.00175 |
| Output power listed is conducted. |
| CC: | This device is certified pursuant to two different Part 15 rules sections. |
TCB Grant - Application G9mcfkErQipwm5ZQpVYsnA==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230-3432 |
Date of Grant: 08/19/2026 Application Dated: 08/19/2026 |
| Shenzhen Huijinzhicheng Technology Co., Limited |
| Room 412, 4rd Floor, No. 330, Pinghu Street, |
| Longgang District, |
| Shenzhen, China |
| Attention: Kunta Chen , 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: | 2A63XKST-620 |
| Name of Grantee: | Shenzhen Huijinzhicheng Technology Co., Limited |
| Equipment Class: | Digital Transmission System |
| Notes: | Wireless headphone |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| CC | 15C | 2402.0 - 2480.0 | 0.00126 |
| Output power listed is conducted. |
| CC: | This device is certified pursuant to two different Part 15 rules sections. |