FCC ID 2AJO8-4SR011A
Wireless headphones
by Shenzhen Sincodynamic Technology Co.,Ltd
Grantee Code: 2AJO8 Product Code: 4SR011A
Latest application date: 2026-06-17
FCC ID Device Details
| FCC ID | 2AJO8-4SR011A |
|---|---|
| Mirrors | fcc.id | gov | fccid.ai |
| Grantee Code | 2AJO8 |
| Product Code | 4SR011A |
| Applicant Business | Shenzhen Sincodynamic Technology Co.,Ltd 🇨🇳 |
| Related Domains |  sinco-dl.com  culturefly.com |
| Equipment Class | Wireless headphones |
| Test Firm | Shenzhen Timeway Testing Laboratories |
Operating Frequencies
| Frequency Range | Application Purpose | Final Action Date |
|---|---|---|
| 2402-2480 MHz | Original Equipment | 2026-06-17 |
Exhibits
| Document | Type | Available | File |
|---|---|---|---|
| 13_4SR011A-RS Users Manual | Users Manual | 2026-06-17 | PDF 2.4 MB |
| 09_4SR011A-RS Internal Photos | Internal Photos | 2026-06-17 | PDF 352.2 KB |
| 08_4SR011A-RS External Photos | External Photos | 2026-06-17 | PDF 413.4 KB |
| 07a_4SR011A-RS Label Location | ID Label/Location Info | 2026-06-17 | PDF 191.8 KB |
| 07a_4SR011A-RS Label Sample | ID Label/Location Info | 2026-06-17 | PDF 41.7 KB |
| 15_4SR011A-RS Test Setup Photos | Test Setup Photos | 2026-06-17 | PDF 281.1 KB |
| 14_4SR011A-RS Test Report BT DXX rev1 | Test Report | 2026-06-17 | PDF 2.5 MB |
| 14_4SR011A-RS Test Report BT DXX rev2 | Test Report | 2026-06-17 | PDF 2.3 MB |
| 16_4SR011A-RS Antenna Specification | Test Report | 2026-06-17 | PDF 1.1 MB |
| 02_4SR011A-RS Covered Equipment Certification Attestation Letter | Attestation Statements | 2026-06-17 | PDF 22.9 KB |
| 03_4SR011A-RS U.S. Agent Designation Attestation Letter | Attestation Statements | 2026-06-17 | PDF 69.9 KB |
| 04_4SR011A-RS Authorization-Agent | Cover Letter(s) | 2026-06-17 | PDF 56.4 KB |
| 06_4SR011A-RS Long-Confidential Request | Cover Letter(s) | 2026-06-17 | PDF 35 KB |
| 18_4SR011A-RS Models Difference Declaration | Cover Letter(s) | 2026-06-17 | PDF 34.1 KB |
| 17_4SR011A-RS RF Exp Info | RF Exposure Info | 2026-06-17 | PDF 86.9 KB |
| 11_4SR011A-RS Block Diagram Metadata only | Block Diagram | PDF 20 KB | |
| 12_4SR011A-RS Schematics Metadata only | Schematics | PDF 73.8 KB | |
| 10_4SR011A-RS Operational Description rev1 Metadata only | Operational Description | PDF 57.2 KB |
Application Information
| Application ID | cLkCO3tWKEgx40kiGaT1Qg== |
|---|---|
| Final Action Date | 2026-06-17 |
| Application Purpose | Original Equipment |
| Applicant FRN | 0025865304 |
| Model | 4SR011A |
| Frequency Range | 2402-2480 MHz |
| Equipment Class | DXX - Part 15 Low Power Communication Device Transmitter |
| Device Description | Wireless headphones |
| Responsible Party | Jason Zhang, jason@sinco-dl.com , 0755-28700358 |
| Non-Technical Contact | David Chen, Culture Fly LLC, skyw@culturefly.com , (646) 827-0062 |
| Test Firm | Terry Tang, Shenzhen Timeway Testing Laboratories, Terry.tang@timeway-lab.com  , 86-755-83448688 |
| TCB Email | TCBadmin@compliancetesting.com  |
| TCB Scope | A2: Low Power Transmitters (except Spread Spectrum) and radar detectors operating above 1 GHz |
| Short-Term Confidentiality | No |
| Long-Term Confidentiality | Yes |
| Modular Equipment | Does not apply |
| Composite Device | No |
| 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 |
|---|---|---|
| cLkCO3tWKEgx40kiGaT1Qg== | 2026-06-17 | Original Equipment |
Equipment Authorization
| Frequency | Rules |
|---|---|
| 2402-2480 MHz | 15C |
Grants
TCB Grant - Application cLkCO3tWKEgx40kiGaT1Qg==
| 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: 06/17/2026 Application Dated: 06/17/2026 |
| Shenzhen Sincodynamic Technology Co.,Ltd |
| No.1 Changguang Industrial Park, No.40 Aoxin Road, |
| Baoan Community, Yuanshan St., Henggang |
| Shenzhen, China |
| Attention: Jason 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: | 2AJO8-4SR011A |
| Name of Grantee: | Shenzhen Sincodynamic Technology Co.,Ltd |
| Equipment Class: | Part 15 Low Power Communication Device Transmitter |
| Notes: | Wireless headphones |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| 15C | 2402.0 - 2480.0 |