FCC ID 2A4MQ-RK780
Mechanical Keyboard
by Jingheng Tengwei (Huizhou) Electronic Technology Co., Ltd.
Grantee Code: 2A4MQ Product Code: RK780
Latest application date: 2026-03-30
FCC ID Device Details
| FCC ID | 2A4MQ-RK780 |
|---|---|
| Mirrors | fcc.id | gov | fccid.ai |
| Grantee Code | 2A4MQ |
| Product Code | RK780 |
| Applicant Business | Jingheng Tengwei (Huizhou) Electronic Technology Co., Ltd. 🇨🇳 |
| Related Domains |  rkgaming.com  ttsmarket.cc |
| Equipment Class | Mechanical Keyboard |
| Test Firm | EST Technology Co., Ltd. |
Operating Frequencies
| Frequency Range | Application Purpose | Final Action Date |
|---|---|---|
| 2402-2480 MHz | Original Equipment | 2026-03-30 |
| 2405-2475 MHz | Original Equipment | 2026-03-30 |
| 2402-2480 MHz | Original Equipment | 2026-03-30 |
Exhibits
| Document | Type | Available | File |
|---|---|---|---|
| 13_RK780 Users Manual | Users Manual | 2026-03-30 | PDF 2.1 MB |
| 09_RK780 Internal Photos | Internal Photos | 2026-03-30 | PDF 1.5 MB |
| 08_RK780 External Photos | External Photos | 2026-03-30 | PDF 776.3 KB |
| 07_RK780 Label Sample and Location | ID Label/Location Info | 2026-03-30 | PDF 127.9 KB |
| 15_RK780 Test Setup Photos | Test Setup Photos | 2026-03-30 | PDF 490.4 KB |
| 14_RK780 Test Report DSS BT | Test Report | 2026-03-30 | PDF 3 MB |
| 14_RK780 Test Report DSS BTappendix | Test Report | 2026-03-30 | PDF 2.4 MB |
| 14_RK780 Test Report DTS BLE | Test Report | 2026-03-30 | PDF 1.9 MB |
| 14_RK780 Test Report DTS BLE appendix | Test Report | 2026-03-30 | PDF 1.7 MB |
| 14_RK780 Test Report DXX 2.4G SRD | Test Report | 2026-03-30 | PDF 2.3 MB |
| 16_RK780 Antenna Specification | Test Report | 2026-03-30 | PDF 1 MB |
| 02_RK780 Covered Equipment Certification Attestation Letter | Attestation Statements | 2026-03-30 | PDF 91.9 KB |
| 03_RK780 U.S. Agent Designation Attestation Letter | Attestation Statements | 2026-03-30 | PDF 82.6 KB |
| 04_RK780 Authorization-Agent | Cover Letter(s) | 2026-03-30 | PDF 111.1 KB |
| 05_RK780 Authorization-CT | Cover Letter(s) | 2026-03-30 | PDF 111.3 KB |
| 06_RK780 Long-Confidential Request | Cover Letter(s) | 2026-03-30 | PDF 105.9 KB |
| 18_RK780 Models Difference Declaration | Cover Letter(s) | 2026-03-30 | PDF 102.4 KB |
| 17_RK780 RF Exp Info | RF Exposure Info | 2026-03-30 | PDF 193.9 KB |
| 11_RK780 Block Diagram Metadata only | Block Diagram | PDF 109.2 KB | |
| 12_RK780 Schematics Metadata only | Schematics | PDF 558.9 KB | |
| 10_RK780 Operational Description Metadata only | Operational Description | PDF 135.4 KB |
Application Information
| Application ID | DoTgiNxhlHUV+8cMzNUAPg== |
|---|---|
| Final Action Date | 2026-03-30 |
| Application Purpose | Original Equipment |
| Applicant FRN | 0031988330 |
| Model | RK780 |
| Frequency Range | 2402-2480 MHz |
| Equipment Class | DSS - Part 15 Spread Spectrum Transmitter |
| Device Description | Mechanical Keyboard |
| Responsible Party | Chuangling Zhang, chuang@rkgaming.com , 18576395720 |
| Non-Technical Contact | Maverick Lim, TTS MARKET INC., Maverick@ttsmarket.cc , 001-(646) 305-2908 |
| Test Firm | Iceman Hu, EST Technology Co., Ltd., iceman.hu@gdest.cn  , 86-0769-83081888 |
| 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 | 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 |
|---|---|---|
| DoTgiNxhlHUV+8cMzNUAPg== | 2026-03-30 | Original Equipment |
| 9m5zgHToUlc6VHpq8tkOxQ== | 2026-03-30 | Original Equipment |
| /J0hfusTPM+EeS5yA7R4BA== | 2026-03-30 | Original Equipment |
Equipment Authorization
Grants
TCB Grant - Application DoTgiNxhlHUV+8cMzNUAPg==
| 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: 03/30/2026 Application Dated: 03/30/2026 |
| Jingheng Tengwei (Huizhou) Electronic Technology Co., Ltd. |
| No. 8 Minying 1 Road, Yuanzhou Town,Boluo County, |
| Huizhou City, Guangdong Province, China |
| Huizhou, China |
| Attention: Chuangling Zhang , 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: | 2A4MQ-RK780 |
| Name of Grantee: | Jingheng Tengwei (Huizhou) Electronic Technology Co., Ltd. |
| Equipment Class: | Part 15 Spread Spectrum Transmitter |
| Notes: | Mechanical Keyboard |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| 15C | 2402.0 - 2480.0 | 0.0016711 |
| Output power listed is conducted. |
TCB Grant - Application 9m5zgHToUlc6VHpq8tkOxQ==
| 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: 03/30/2026 Application Dated: 03/30/2026 |
| Jingheng Tengwei (Huizhou) Electronic Technology Co., Ltd. |
| No. 8 Minying 1 Road, Yuanzhou Town,Boluo County, |
| Huizhou City, Guangdong Province, China |
| Huizhou, China |
| Attention: Chuangling Zhang , 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: | 2A4MQ-RK780 |
| Name of Grantee: | Jingheng Tengwei (Huizhou) Electronic Technology Co., Ltd. |
| Equipment Class: | Part 15 Low Power Communication Device Transmitter |
| Notes: | Mechanical Keyboard |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| 15C | 2405.0 - 2475.0 |
TCB Grant - Application /J0hfusTPM+EeS5yA7R4BA==
| 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: 03/30/2026 Application Dated: 03/30/2026 |
| Jingheng Tengwei (Huizhou) Electronic Technology Co., Ltd. |
| No. 8 Minying 1 Road, Yuanzhou Town,Boluo County, |
| Huizhou City, Guangdong Province, China |
| Huizhou, China |
| Attention: Chuangling Zhang , 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: | 2A4MQ-RK780 |
| Name of Grantee: | Jingheng Tengwei (Huizhou) Electronic Technology Co., Ltd. |
| Equipment Class: | Digital Transmission System |
| Notes: | Mechanical Keyboard |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| 15C | 2402.0 - 2480.0 | 0.0016218 |
| Output power listed is conducted. |