FCC ID 2BC3X-TB40
Smart watch
by Dongguan Langchen Technology Co.,Ltd.
Grantee Code: 2BC3X Product Code: TB40
Latest application date: 2025-08-05
FCC ID Device Details
| FCC ID | 2BC3X-TB40 |
|---|---|
| Mirrors | fcc.id | gov | fccid.ai |
| Grantee Code | 2BC3X |
| Product Code | TB40 |
| Applicant Business | Dongguan Langchen Technology Co.,Ltd. 🇨🇳 |
| Equipment Class | Smart watch |
| Test Firm | Shenzhen PSI Testing Co., Ltd. |
Operating Frequencies
| Frequency Range | Application Purpose | Final Action Date |
|---|---|---|
| 2402-2480 MHz | Original Equipment | 2025-08-05 |
Exhibits
| Document | Type | Available | File |
|---|---|---|---|
| User manual | Users Manual | 2025-08-05 | PDF 5.9 MB |
| Internal photos | Internal Photos | 2025-08-05 | PDF 1.6 MB |
| External photos | External Photos | 2025-08-05 | PDF 963.6 KB |
| ID label and location | ID Label/Location Info | 2025-08-05 | PDF 76.9 KB |
| Test Setup photo | Test Setup Photos | 2025-08-05 | PDF 516 KB |
| Antenna Specification | Test Report | 2025-08-05 | PDF 570.6 KB |
| Test report | Test Report | 2025-08-05 | PDF 2 MB |
| Attestation_Statement | Attestation Statements | 2025-08-05 | PDF 430.5 KB |
| Family declaration | Attestation Statements | 2025-08-05 | PDF 281 KB |
| Kaspersky Statement | Attestation Statements | 2025-08-05 | PDF 674.2 KB |
| TCB_validation_US_agent_process | Attestation Statements | 2025-08-05 | PDF 792.1 KB |
| Us_Agent | Attestation Statements | 2025-08-05 | PDF 87.1 KB |
| Confidentiality | Cover Letter(s) | 2025-08-05 | PDF 539.3 KB |
| Letter Authorization | Cover Letter(s) | 2025-08-05 | PDF 147 KB |
| RF Exposure | RF Exposure Info | 2025-08-05 | PDF 134.6 KB |
| Block Diagram Metadata only | Block Diagram | PDF 73.2 KB | |
| Schematics Metadata only | Schematics | PDF 144 KB | |
| Operational Description Metadata only | Operational Description | PDF 181.3 KB |
Application Information
| Application ID | TSBu6Vj5C+cRVs4uFpj+og== |
|---|---|
| Final Action Date | 2025-08-05 |
| Application Purpose | Original Equipment |
| Applicant FRN | 0034327130 |
| Model | TB40 |
| Frequency Range | 2402-2480 MHz |
| Equipment Class | DTS - Digital Transmission System |
| Device Description | Smart watch |
| Responsible Party | Lan Zhou, 18823709181@163.com  , 18823709181 |
| Technical Contact | Lan Zhou, Dongguan Langchen Technology Co.,Ltd, 18823709181@163.com , 18823709181 |
| Test Firm | Simple Guan, Shenzhen PSI Testing Co., Ltd., simple.guan@psi-lab.cn  , 86-0755-23019820 |
| 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 |
| Grant Deferral | No |
| Modular Equipment | Does not apply |
| Composite Device | No |
| 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 |
|---|---|---|
| TSBu6Vj5C+cRVs4uFpj+og== | 2025-08-05 | Original Equipment |
Equipment Authorization
| Frequency | Output |
|---|---|
| 2402-2480 MHz | 0.0030200 |
Grants
TCB Grant - Application TSBu6Vj5C+cRVs4uFpj+og==
| 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: 08/05/2025 Application Dated: 08/05/2025 |
| Dongguan Langchen Technology Co.,Ltd. |
| Room 704,No.7 East Second Street, |
| Xingfa South Road,Wusha,Chang'an Town, |
| Dongguan City,Guangdong Province, China |
| Attention: Lan Zhou , |
| 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: | 2BC3X-TB40 |
| Name of Grantee: | Dongguan Langchen Technology Co.,Ltd. |
| Equipment Class: | Digital Transmission System |
| Notes: | Smart watch |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| 15C | 2402.0 - 2480.0 | 0.00302 |
| Output power listed is conducted. |