FCC ID 2BRE52025TRTK3
USB DAC EARPHONE AMPLIFIER
by Shenzhen Lingyin Technology Co., Ltd.
Grantee Code: 2BRE5 Product Code: 2025TRTK3
Latest application date: 2025-09-19
FCC ID Device Details
| FCC ID | 2BRE52025TRTK3 |
|---|---|
| Mirrors | fcc.id | gov | fccid.ai |
| Grantee Code | 2BRE5 |
| Product Code | 2025TRTK3 |
| Applicant Business | Shenzhen Lingyin Technology Co., Ltd. 🇨🇳 |
| Equipment Class | USB DAC EARPHONE AMPLIFIER |
| Test Firm | EST Technology Co., Ltd. |
Operating Frequencies
| Frequency Range | Application Purpose | Final Action Date |
|---|---|---|
| 2402-2480 MHz | Original Equipment | 2025-09-19 |
| 2402-2480 MHz | Original Equipment | 2025-09-19 |
Exhibits
| Document | Type | Available | File |
|---|---|---|---|
| UM | Users Manual | 2025-09-19 | PDF 319.3 KB |
| INT PHO | Internal Photos | 2025-09-19 | PDF 2.5 MB |
| EXT PHO | External Photos | 2025-09-19 | PDF 1.7 MB |
| LABEL | ID Label/Location Info | 2025-09-19 | PDF 322.7 KB |
| SETUP PHO | Test Setup Photos | 2025-09-19 | PDF 468.5 KB |
| ANT SPEC | Test Report | 2025-09-19 | PDF 275 KB |
| DSS TEST REPORT P1 | Test Report | 2025-09-19 | PDF 3.6 MB |
| DSS TEST REPORT P2 | Test Report | 2025-09-19 | PDF 4.1 MB |
| DSS TEST REPORT P3 | Test Report | 2025-09-19 | PDF 3.1 MB |
| DTS TEST REP P1 | Test Report | 2025-09-19 | PDF 1.9 MB |
| DTS TEST REP P2 | Test Report | 2025-09-19 | PDF 3.3 MB |
| FCC COVERED EQUIPMENT LETTER | Attestation Statements | 2025-09-19 | PDF 569.1 KB |
| FCC Covered Equipment Certification Attestation Letter | Attestation Statements | 2025-09-19 | PDF 569.1 KB |
| US agent designation attestation | Attestation Statements | 2025-09-19 | PDF 118.3 KB |
| FCC AUTHORIZATION LETTER | Cover Letter(s) | 2025-09-19 | PDF 481.5 KB |
| FCC CONFIDENCE LETTER | Cover Letter(s) | 2025-09-19 | PDF 384 KB |
| RF EXPO | RF Exposure Info | 2025-09-19 | PDF 201.2 KB |
| block diagram Metadata only | Block Diagram | PDF 156.5 KB | |
| schematics Metadata only | Schematics | PDF 1,015.3 KB | |
| operation description Metadata only | Operational Description | PDF 94.8 KB |
Application Information
| Application ID | eEi5wntFvwRCDngn2EgDKw== |
|---|---|
| Final Action Date | 2025-09-19 |
| Application Purpose | Original Equipment |
| Applicant FRN | 0037359478 |
| Model | 2025TRTK3 |
| Frequency Range | 2402-2480 MHz |
| Equipment Class | DTS - Digital Transmission System |
| Device Description | USB DAC EARPHONE AMPLIFIER |
| Responsible Party | Bairon Sun, 395676643@qq.com  , +86 18607917994 |
| Test Firm | Iceman Hu, EST Technology Co., Ltd., iceman.hu@gdest.cn  , 86-0769-83081888 |
| TCB Email | darial@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 |
|---|---|---|
| eEi5wntFvwRCDngn2EgDKw== | 2025-09-19 | Original Equipment |
| DYeUsCkmo8dmIJzRbZuFQA== | 2025-09-19 | Original Equipment |
Grants
TCB Grant - Application eEi5wntFvwRCDngn2EgDKw==
| 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: 09/19/2025 Application Dated: 09/19/2025 |
| Shenzhen Lingyin Technology Co., Ltd. |
| 801, Block A, Building 11, Building 11&12, |
| Qinchengda Paradise, Lingzhiyuan, Bao'an |
| Shenzhen, 518101 China |
| Attention: Bairon Sun , |
| 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: | 2BRE52025TRTK3 |
| Name of Grantee: | Shenzhen Lingyin Technology Co., Ltd. |
| Equipment Class: | Digital Transmission System |
| Notes: | USB DAC EARPHONE AMPLIFIER |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| 15C | 2402.0 - 2480.0 | 0.0007211 |
| Power output listed is conducted. |
TCB Grant - Application DYeUsCkmo8dmIJzRbZuFQA==
| 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: 09/19/2025 Application Dated: 09/19/2025 |
| Shenzhen Lingyin Technology Co., Ltd. |
| 801, Block A, Building 11, Building 11&12, |
| Qinchengda Paradise, Lingzhiyuan, Bao'an |
| Shenzhen, 518101 China |
| Attention: Bairon Sun , |
| 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: | 2BRE52025TRTK3 |
| Name of Grantee: | Shenzhen Lingyin Technology Co., Ltd. |
| Equipment Class: | Part 15 Spread Spectrum Transmitter |
| Notes: | USB DAC EARPHONE AMPLIFIER |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| 15C | 2402.0 - 2480.0 | 0.0010965 |
| Power output listed is conducted. |