FCC ID 2A9MI-K1-MAX
Wireless lapel microphone amplifier
by Shenzhen Yixi Technology Co., LTD
Grantee Code: 2A9MI Product Code: K1MAX
Latest application date: 2025-11-21
FCC ID Device Details
| FCC ID | 2A9MI-K1-MAX |
|---|---|
| Mirrors | fcc.id | gov | fccid.ai |
| Grantee Code | 2A9MI |
| Product Code | K1MAX |
| Applicant Business | Shenzhen Yixi Technology Co., LTD 🇨🇳 |
| Equipment Class | Wireless lapel microphone amplifier |
| Test Firm | Guangdong Asia Hongke Test Technology Limited |
Operating Frequencies
| Frequency Range | Application Purpose | Final Action Date |
|---|---|---|
| 2402-2480 MHz | Original Equipment | 2025-11-21 |
| 2402-2480 MHz | Original Equipment | 2025-11-21 |
Exhibits
| Document | Type | Available | File |
|---|---|---|---|
| User manual | Users Manual | 2025-11-21 | PDF 3 MB |
| Internal photo | Internal Photos | 2025-11-21 | PDF 864.2 KB |
| External photo | External Photos | 2025-11-21 | PDF 631.7 KB |
| Label location | ID Label/Location Info | 2025-11-21 | PDF 193.1 KB |
| Test Setup Photos | Test Setup Photos | 2025-11-21 | PDF 313.9 KB |
| AiTSZ-250927032FW1_FCC Test Report_BT | Test Report | 2025-11-21 | PDF 2.3 MB |
| AiTSZ-250927032FW2_FCC Test Report_BLE | Test Report | 2025-11-21 | PDF 913.5 KB |
| Antenna Specification_D3(BT1) | Test Report | 2025-11-21 | PDF 2.2 MB |
| Antenna Specification_X6(BT2) | Test Report | 2025-11-21 | PDF 2.3 MB |
| Appendix RF test data for BLE | Test Report | 2025-11-21 | PDF 2.3 MB |
| Appendix RF test data for BT | Test Report | 2025-11-21 | PDF 3.9 MB |
| US agent_2A9MI-K1-MAX | Attestation Statements | 2025-11-21 | PDF 336.2 KB |
| USA-CoveredEquipmentLetter-Combined_V1.1 | Attestation Statements | 2025-11-21 | PDF 124.1 KB |
| Declaration Letter of Model Difference | Cover Letter(s) | 2025-11-21 | PDF 83.5 KB |
| USA-ConfidentialityRequestLetter_V0.1 | Cover Letter(s) | 2025-11-21 | PDF 103.6 KB |
| AiTSZ-250927032FW3_FCC RF EXPOSURE | RF Exposure Info | 2025-11-21 | PDF 316.7 KB |
| Block Diagram Metadata only | Block Diagram | PDF 231.4 KB | |
| Schematic Metadata only | Schematics | PDF 259 KB | |
| Operation Description Metadata only | Operational Description | PDF 207.5 KB | |
| USA-DueDigilenceLetter_V0.1 Metadata only | Operational Description | PDF 156.1 KB |
Application Information
| Application ID | yL7wKKepdKEezJVtMWadyQ== |
|---|---|
| Final Action Date | 2025-11-21 |
| Application Purpose | Original Equipment |
| Applicant FRN | 0033155482 |
| Model | K1-MAX |
| Frequency Range | 2402-2480 MHz |
| Equipment Class | DTS - Digital Transmission System |
| Device Description | Wireless lapel microphone amplifier |
| Responsible Party | Qisong Wang, 373899330@qq.com  , +86-13423817655 |
| Test Firm | Coin Tang, Guangdong Asia Hongke Test Technology Limited, coin.tang@aitek.org.cn  , 86-755-23096763 |
| TCB Email | o.kneip@kl-certification.de  |
| 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 |
|---|---|---|
| yL7wKKepdKEezJVtMWadyQ== | 2025-11-21 | Original Equipment |
| lTlm2t6GC/ObNTHJS2pg7g== | 2025-11-21 | Original Equipment |
Equipment Authorization
| Frequency | Output | Rules |
|---|---|---|
| 2402-2480 MHz | 0.0015 | 15C |
Grants
TCB Grant - Application yL7wKKepdKEezJVtMWadyQ==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
KL-Certification GmbH Heinrich-Hertz-Allee 7 St. Ingbert, 66386 Germany |
Date of Grant: 11/21/2025 Application Dated: 11/21/2025 |
| Shenzhen Yixi Technology Co., LTD |
| Second Floor, Building B, Area A |
| Longquan Science Park, Dalang Huaxing Road |
| Longhua District, Shenzhen City, China |
| Attention: Qisong Wang , |
| 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: | 2A9MI-K1-MAX |
| Name of Grantee: | Shenzhen Yixi Technology Co., LTD |
| Equipment Class: | Digital Transmission System |
| Notes: | Wireless lapel microphone amplifier |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| 15C | 2402.0 - 2480.0 | 0.0015 |
| Output Power listed is peak conducted. |
TCB Grant - Application lTlm2t6GC/ObNTHJS2pg7g==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
KL-Certification GmbH Heinrich-Hertz-Allee 7 St. Ingbert, 66386 Germany |
Date of Grant: 11/21/2025 Application Dated: 11/21/2025 |
| Shenzhen Yixi Technology Co., LTD |
| Second Floor, Building B, Area A |
| Longquan Science Park, Dalang Huaxing Road |
| Longhua District, Shenzhen City, China |
| Attention: Qisong Wang , |
| 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: | 2A9MI-K1-MAX |
| Name of Grantee: | Shenzhen Yixi Technology Co., LTD |
| Equipment Class: | Part 15 Spread Spectrum Transmitter |
| Notes: | Wireless lapel microphone amplifier |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| 15C | 2402.0 - 2480.0 | 0.0015 |
| Output Power listed is peak conducted. |