FCC ID 2BSPN-KD25G4
Earbuds Ball
by KDYNIX LIMITED
Grantee Code: 2BSPN Product Code: KD25G4
Latest application date: 2025-11-24
FCC ID Device Details
| FCC ID | 2BSPN-KD25G4 |
|---|---|
| Mirrors | fcc.id | gov | fccid.ai |
| Grantee Code | 2BSPN |
| Product Code | KD25G4 |
| Applicant Business | KDYNIX LIMITED 🇨🇳 |
| Equipment Class | Earbuds Ball |
| Test Firm | Guangdong Asia Hongke Test Technology Limited |
Operating Frequencies
| Frequency Range | Application Purpose | Final Action Date |
|---|---|---|
| 2402-2480 MHz | Original Equipment | 2025-11-24 |
| 2402-2480 MHz | Original Equipment | 2025-11-24 |
Exhibits
| Document | Type | Available | File |
|---|---|---|---|
| User manual | Users Manual | 2025-11-24 | PDF 1.9 MB |
| Internal photo | Internal Photos | 2025-11-24 | PDF 644.7 KB |
| External photo | External Photos | 2025-11-24 | PDF 614.9 KB |
| label and location | ID Label/Location Info | 2025-11-24 | PDF 162.3 KB |
| Test Setup Photos | Test Setup Photos | 2025-11-24 | PDF 363 KB |
| AiTSZ-251013027FW1_FCC Test Report_BT BREDR | Test Report | 2025-11-24 | PDF 2.4 MB |
| AiTSZ-251013027FW2_FCC Test Report_BLE | Test Report | 2025-11-24 | PDF 1 MB |
| Antenna specification | Test Report | 2025-11-24 | PDF 1.1 MB |
| Appendix RF test data for BLE | Test Report | 2025-11-24 | PDF 1.2 MB |
| Appendix RF test data for BT | Test Report | 2025-11-24 | PDF 3.7 MB |
| USA-CoveredEquipmentLetter-Combined_V1.1 | Attestation Statements | 2025-11-24 | PDF 116.2 KB |
| Ua agent-2BSPN-KD25G4 | Attestation Statements | 2025-11-24 | PDF 336.2 KB |
| FCC Declaration Letter TWS left&Right | Cover Letter(s) | 2025-11-24 | PDF 421.4 KB |
| USA-ConfidentialityRequestLetter_V0.1 | Cover Letter(s) | 2025-11-24 | PDF 101.6 KB |
| AiTSZ-251013027FW3_FCC RF EXPOSURE | RF Exposure Info | 2025-11-24 | PDF 325.9 KB |
| Block diagram Metadata only | Block Diagram | PDF 23.1 KB | |
| Schematic Metadata only | Schematics | PDF 32.1 KB | |
| Operation Description Metadata only | Operational Description | PDF 206.5 KB | |
| USA-DueDigilenceLetter_V0.1 Metadata only | Operational Description | PDF 145.4 KB |
Application Information
| Application ID | 6fOvxFLPmfTuC1IZBprOlg== |
|---|---|
| Final Action Date | 2025-11-24 |
| Application Purpose | Original Equipment |
| Applicant FRN | 0037579760 |
| Model | KD25G4 |
| Frequency Range | 2402-2480 MHz |
| Equipment Class | DSS - Part 15 Spread Spectrum Transmitter |
| Device Description | Earbuds Ball |
| Responsible Party | Kevin Liao, winnerltd@vip.163.com  , 13392170091 |
| 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 |
|---|---|---|
| 6fOvxFLPmfTuC1IZBprOlg== | 2025-11-24 | Original Equipment |
| 5rRoimXQxVCPB6YvFilSVw== | 2025-11-24 | Original Equipment |
Grants
TCB Grant - Application 6fOvxFLPmfTuC1IZBprOlg==
| 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: 11/24/2025 Application Dated: 11/24/2025 |
| KDYNIX LIMITED |
| Room 1508, 15/F, Phase 2 Office Building, |
| Yalan Centre, 625 Nathan Road, Mong Kok |
| Hong Kong, China |
| Attention: Kevin Liao , |
| 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: | 2BSPN-KD25G4 |
| Name of Grantee: | KDYNIX LIMITED |
| Equipment Class: | Part 15 Spread Spectrum Transmitter |
| Notes: | Earbuds Ball |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| 15C | 2402.0 - 2480.0 | 0.003 |
| Output Power listed is peak conducted. |
TCB Grant - Application 5rRoimXQxVCPB6YvFilSVw==
| 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: 11/24/2025 Application Dated: 11/24/2025 |
| KDYNIX LIMITED |
| Room 1508, 15/F, Phase 2 Office Building, |
| Yalan Centre, 625 Nathan Road, Mong Kok |
| Hong Kong, China |
| Attention: Kevin Liao , |
| 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: | 2BSPN-KD25G4 |
| Name of Grantee: | KDYNIX LIMITED |
| Equipment Class: | Digital Transmission System |
| Notes: | Earbuds Ball |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| 15C | 2402.0 - 2480.0 | 0.0025 |
| Output Power listed is peak conducted. |