FCC ID 2BNTO-B33S
Bone Conduction Bluetooth Headphone
by Shenzhen Kai Chuang Future Technology Co., LTD
Grantee Code: 2BNTO Product Code: B33S
Latest application date: 2025-06-30
FCC ID Device Details
| FCC ID | 2BNTO-B33S |
|---|---|
| Mirrors | fcc.id | gov | fccid.ai |
| Grantee Code | 2BNTO |
| Product Code | B33S |
| Applicant Business | Shenzhen Kai Chuang Future Technology Co., LTD 🇨🇳 |
| Equipment Class | Bone Conduction Bluetooth Headphone |
| Test Firm | Shenzhen CTB Testing Technology Co., Ltd. |
Operating Frequencies
| Frequency Range | Application Purpose | Final Action Date |
|---|---|---|
| 2402-2480 MHz | Original Equipment | 2025-06-30 |
| 2402-2480 MHz | Original Equipment | 2025-06-30 |
Exhibits
| Document | Type | Available | File |
|---|---|---|---|
| Users Manual | Users Manual | 2025-12-28 | PDF 4.2 MB |
| Internal Photos | Internal Photos | 2025-12-28 | PDF 901.3 KB |
| External Photos | External Photos | 2025-06-30 | PDF 438.6 KB |
| ID Label/Location Info | ID Label/Location Info | 2025-06-30 | PDF 211.9 KB |
| Test Setup Photos | Test Setup Photos | 2025-06-30 | PDF 241.9 KB |
| ANT Test Report | Test Report | 2025-06-30 | PDF 1.2 MB |
| Test Report | Test Report | 2025-06-30 | PDF 5 MB |
| Test Report | Test Report | 2025-06-30 | PDF 4 MB |
| 63 Compliance proof covered list | Attestation Statements | 2025-06-30 | PDF 365.9 KB |
| Attestation Statements | Attestation Statements | 2025-06-30 | PDF 17 KB |
| US agent | Attestation Statements | 2025-06-30 | PDF 322.3 KB |
| Agent Authorization | Cover Letter(s) | 2025-06-30 | PDF 82.6 KB |
| Long & short term Confidentiality Letter | Cover Letter(s) | 2025-06-30 | PDF 147.1 KB |
| Model Difference | Cover Letter(s) | 2025-06-30 | PDF 217.7 KB |
| RF Exposure Info | RF Exposure Info | 2025-06-30 | PDF 75.2 KB |
| Block Diagram Metadata only | Block Diagram | PDF 200.5 KB | |
| Schematics Metadata only | Schematics | PDF 27.1 KB | |
| Operational Description Metadata only | Operational Description | PDF 149.9 KB |
Application Information
| Application ID | pPu2Rx+JxOCDby6x2WboHA== |
|---|---|
| Final Action Date | 2025-06-30 |
| Application Purpose | Original Equipment |
| Applicant FRN | 0036690915 |
| Model | B33S |
| Frequency Range | 2402-2480 MHz |
| Equipment Class | DTS - Digital Transmission System |
| Device Description | Bone Conduction Bluetooth Headphone |
| Responsible Party | Xiao Xia Deng, 906098897@qq.com  , 13538214502 |
| Test Firm | Rita Xiao, Shenzhen CTB Testing Technology Co., Ltd., simon@ctb-lab.com  , 86-13538218145 |
| TCB Email | tcb@metlabs.com  |
| TCB Scope | A4: UNII devices & low power transmitters using spread spectrum techniques |
| Short-Term Confidentiality | Yes |
| Short-Term Confidentiality Date | 12/28/2025 |
| Long-Term Confidentiality | Yes |
| Grant Deferral | No |
| Modular Equipment | Does not apply |
| Composite Device | Yes |
| Composite Part | No |
| Cognitive Radio | No |
| Authorization Waiver | No |
| Authorization Waiver Approved | No |
| Section 5301 Certification | Yes |
| Related OET Knowledge DataBase Inquiry | No |
| Grant Comments | Output power listed is conducted. |
Applications
| Application ID | Date | Purpose |
|---|---|---|
| pPu2Rx+JxOCDby6x2WboHA== | 2025-06-30 | Original Equipment |
| 6GU4NV4bf0n96C/VOVb+Eg== | 2025-06-30 | Original Equipment |
Grants
TCB Grant - Application pPu2Rx+JxOCDby6x2WboHA==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230-3432 |
Date of Grant: 06/30/2025 Application Dated: 06/30/2025 |
| Shenzhen Kai Chuang Future Technology Co., LTD |
| Xinghe WORLD Twin Towers, No. 8, Yaxing Road, |
| Nankeng Community, Bantian Street, Longgang |
| District, Shenzhen. 3102, 31st floor, West Tower, China |
| Attention: Xiao Xia Deng , |
| 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: | 2BNTO-B33S |
| Name of Grantee: | Shenzhen Kai Chuang Future Technology Co., LTD |
| Equipment Class: | Digital Transmission System |
| Notes: | Bone Conduction Bluetooth Headphone |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| CC | 15C | 2402.0 - 2480.0 | 0.00177 |
| Output power listed is conducted. |
| CC: | This device is certified pursuant to two different Part 15 rules sections. |
TCB Grant - Application 6GU4NV4bf0n96C/VOVb+Eg==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230-3432 |
Date of Grant: 06/30/2025 Application Dated: 06/30/2025 |
| Shenzhen Kai Chuang Future Technology Co., LTD |
| Xinghe WORLD Twin Towers, No. 8, Yaxing Road, |
| Nankeng Community, Bantian Street, Longgang |
| District, Shenzhen. 3102, 31st floor, West Tower, China |
| Attention: Xiao Xia Deng , |
| 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: | 2BNTO-B33S |
| Name of Grantee: | Shenzhen Kai Chuang Future Technology Co., LTD |
| Equipment Class: | Part 15 Spread Spectrum Transmitter |
| Notes: | Bone Conduction Bluetooth Headphone |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| CC | 15C | 2402.0 - 2480.0 | 0.00236 |
| Output power listed is conducted. |
| CC: | This device is certified pursuant to two different Part 15 rules sections. |