FCC ID 2BNTO-B77S
Bone Conduction Headphone
by Shenzhen Kai Chuang Future Technology Co., LTD
Grantee Code: 2BNTO Product Code: B77S
Latest application date: 2026-01-15
FCC ID Device Details
Operating Frequencies
| Frequency Range | Application Purpose | Final Action Date |
|---|---|---|
| 2402-2480 MHz | Original Equipment | 2026-01-15 |
| 2402-2480 MHz | Original Equipment | 2026-01-15 |
Exhibits
| Document | Type | Available | File |
|---|---|---|---|
| FCC Warning | Users Manual | 2026-01-15 | PDF 2.8 MB |
| User manual | Users Manual | 2026-01-15 | PDF 4.6 MB |
| Internal photos | Internal Photos | 2026-01-15 | PDF 5.4 MB |
| External photos | External Photos | 2026-01-15 | PDF 4.2 MB |
| ID label and location | ID Label/Location Info | 2026-01-15 | PDF 1.6 MB |
| Test Setup photo | Test Setup Photos | 2026-01-15 | PDF 2.6 MB |
| Antenna Specification | Test Report | 2026-01-15 | PDF 635.6 KB |
| Test report BLE | Test Report | 2026-01-15 | PDF 5.2 MB |
| Test report EDR | Test Report | 2026-01-15 | PDF 5.9 MB |
| Attestation statement | Attestation Statements | 2026-01-15 | PDF 430.1 KB |
| Attestation_Statement Metadata only | Attestation Statements | 2026-01-15 | PDF 208.8 KB |
| Attestation_Statement | Attestation Statements | 2026-01-15 | PDF 430.1 KB |
| Kaspersky Statement | Attestation Statements | 2026-01-15 | PDF 678.9 KB |
| Product similarity Declaration | Attestation Statements | 2026-01-15 | PDF 79 KB |
| TCB_validation_US_agent_process | Attestation Statements | 2026-01-15 | PDF 562.4 KB |
| US Agent | Attestation Statements | 2026-01-15 | PDF 156.4 KB |
| Us_Agent | Attestation Statements | 2026-01-15 | PDF 156.4 KB |
| Us_Agent Metadata only | Attestation Statements | 2026-01-15 | PDF 474.5 KB |
| Confidentiality | Cover Letter(s) | 2026-01-15 | PDF 474.5 KB |
| Letter Authorization | Cover Letter(s) | 2026-01-15 | PDF 208.8 KB |
| RF Exposure | RF Exposure Info | 2026-01-15 | PDF 336.6 KB |
| Block Diagram Metadata only | Block Diagram | PDF 184.4 KB | |
| Schematics Metadata only | Schematics | PDF 36.1 KB | |
| Operational Description Metadata only | Operational Description | PDF 304.8 KB |
Application Information
| Application ID | fxAA6ql9ilSIWTv7Sk0D4w== |
|---|---|
| Final Action Date | 2026-01-15 |
| Application Purpose | Original Equipment |
| Applicant FRN | 0036690915 |
| Model | B77S |
| Frequency Range | 2402-2480 MHz |
| Equipment Class | DTS - Digital Transmission System |
| Device Description | Bone Conduction Headphone |
| Responsible Party | Xiao Xia Deng, 906098897@qq.com  , 13538214502 |
| Technical Contact | Leon Chen, Shenzhen Microtest Co., Ltd, leon@51mti.com  , +86-755 88850135 |
| Non-Technical Contact | lvan Wang, Picus Advisors US LLC, ivan.wang@picus.fi  , +1(713) 271-9600 |
| Test Firm | Tina Huang, Shenzhen Microtest Co., Ltd., tinahuang@51mti.com , 0755-88850135-1132 |
| TCB Email | elabscert@applus.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 |
|---|---|---|
| fxAA6ql9ilSIWTv7Sk0D4w== | 2026-01-15 | Original Equipment |
| eMj86eOIdLDsJdhS0oJtKw== | 2026-01-15 | Original Equipment |
Equipment Authorization
Grants
TCB Grant - Application fxAA6ql9ilSIWTv7Sk0D4w==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
LGAI Technological Center S.A. (APPLUS) Ronda de la Font del Carme, s/n <BR>P.O. Box 08193, Barcelona, Spain |
Date of Grant: 01/15/2026 Application Dated: 01/15/2026 |
| 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-B77S |
| Name of Grantee: | Shenzhen Kai Chuang Future Technology Co., LTD |
| Equipment Class: | Digital Transmission System |
| Notes: | Bone Conduction Headphone |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| CC | 15C | 2402.0 - 2480.0 | 0.0019 |
| Output power listed is conducted. |
| CC: | This device is certified pursuant to two different Part 15 rules sections. |
TCB Grant - Application eMj86eOIdLDsJdhS0oJtKw==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
LGAI Technological Center S.A. (APPLUS) Ronda de la Font del Carme, s/n <BR>P.O. Box 08193, Barcelona, Spain |
Date of Grant: 01/15/2026 Application Dated: 01/15/2026 |
| 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-B77S |
| Name of Grantee: | Shenzhen Kai Chuang Future Technology Co., LTD |
| Equipment Class: | Part 15 Spread Spectrum Transmitter |
| Notes: | Bone Conduction Headphone |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| CC | 15C | 2402.0 - 2480.0 | 0.0021 |
| Output power listed is conducted. |
| CC: | This device is certified pursuant to two different Part 15 rules sections. |