FCC ID 2APD3-TF20
Smart Watch
by SHEN ZHEN TOMSTAR TECHNOLOGY CO., LTD
Grantee Code: 2APD3 Product Code: TF20
Latest application date: 2026-03-16
FCC ID Device Details
| FCC ID | 2APD3-TF20 |
|---|---|
| Mirrors | fcc.id | gov | fccid.ai |
| Grantee Code | 2APD3 |
| Product Code | TF20 |
| Applicant Business | SHEN ZHEN TOMSTAR TECHNOLOGY CO., LTD 🇨🇳 |
| Related Domains |  sztomstar.com  mangrovesai.com |
| Equipment Class | Smart Watch |
| Test Firm | SGS-CSTC Standards Technical Services Co., Ltd. Sh |
Operating Frequencies
| Frequency Range | Application Purpose | Final Action Date |
|---|---|---|
| 2402-2480 MHz | Original Equipment | 2026-03-16 |
| 2402-2480 MHz | Original Equipment | 2026-03-16 |
Exhibits
| Document | Type | Available | File |
|---|---|---|---|
| User Manual | Users Manual | 2026-09-13 | PDF 181.6 KB |
| Internal Photos | Internal Photos | 2026-09-13 | PDF 1.2 MB |
| External Photos | External Photos | 2026-09-13 | PDF 823.6 KB |
| Label | ID Label/Location Info | 2026-03-16 | PDF 342 KB |
| Test Setup Photos | Test Setup Photos | 2026-09-13 | PDF 619.9 KB |
| Antenna Information | Test Report | 2026-03-16 | PDF 341.5 KB |
| RF Exposure Test Report | RF Exposure Info | 2026-03-16 | PDF 609.3 KB |
| Test Report | Test Report | 2026-03-16 | PDF 5.2 MB |
| Test Report | Test Report | 2026-03-16 | PDF 3.6 MB |
| Covered List Declaration | Attestation Statements | 2026-03-16 | PDF 788.3 KB |
| Declaration Letter | Attestation Statements | 2026-03-16 | PDF 1 MB |
| US Agent Letter | Attestation Statements | 2026-03-16 | PDF 900.5 KB |
| Authorization Letter | Cover Letter(s) | 2026-03-16 | PDF 648.8 KB |
| Confidentiality Letter | Cover Letter(s) | 2026-03-16 | PDF 667.3 KB |
| Block Diagram Metadata only | Block Diagram | PDF 30.6 KB | |
| Schematics Metadata only | Schematics | PDF 420.1 KB | |
| Operation Description Metadata only | Operational Description | PDF 226.4 KB | |
| BOM Metadata only | Parts List/Tune Up Info | PDF 262.1 KB |
Application Information
| Application ID | sg5HYM97Ge7H6rHW2GDSAQ== |
|---|---|
| Final Action Date | 2026-03-16 |
| Application Purpose | Original Equipment |
| Applicant FRN | 0027397942 |
| Model | TF20 |
| Frequency Range | 2402-2480 MHz |
| Equipment Class | DTS - Digital Transmission System |
| Device Description | Smart Watch |
| Responsible Party | Jun Li, peter@sztomstar.com , +86-0755-83588177 |
| Technical Contact | Keny Xu, SGS-CSTC Standards Technical Services Co., Ltd., keny.xu@sgs.com  , 86-755-2532 8629 |
| Non-Technical Contact | George Wu, ATHORS TRADING INC, agent@mangrovesai.com , (617) 834-9181 |
| Test Firm | Keny Xu, SGS-CSTC Standards Technical Services Co., Ltd. Sh, Keny.Xu@sgs.com , 86-(0)755-2532-8629 |
| TCB Email | USCTS.TCB@SGS.COM |
| TCB Scope | A4: UNII devices & low power transmitters using spread spectrum techniques |
| Short-Term Confidentiality | Yes |
| 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 |
|---|---|---|
| sg5HYM97Ge7H6rHW2GDSAQ== | 2026-03-16 | Original Equipment |
| MEKISxbiHeVfANrxAMZ7xA== | 2026-03-16 | Original Equipment |
Grants
TCB Grant - Application sg5HYM97Ge7H6rHW2GDSAQ==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
SGS North America, Inc. 620 Old Peachtree Road NW Suite 100 Suwanee, GA 30024 |
Date of Grant: 03/16/2026 Application Dated: 03/16/2026 |
| SHEN ZHEN TOMSTAR TECHNOLOGY CO., LTD |
| Room2110-2116,huafeng international building |
| ,No.4018 BaoAn Blvd, |
| Shenzhen, China |
| Attention: Jun Li , |
| 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: | 2APD3-TF20 |
| Name of Grantee: | SHEN ZHEN TOMSTAR 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 | 0.0007 |
| The output power listed is conducted. |
TCB Grant - Application MEKISxbiHeVfANrxAMZ7xA==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
SGS North America, Inc. 620 Old Peachtree Road NW Suite 100 Suwanee, GA 30024 |
Date of Grant: 03/16/2026 Application Dated: 03/16/2026 |
| SHEN ZHEN TOMSTAR TECHNOLOGY CO., LTD |
| Room2110-2116,huafeng international building |
| ,No.4018 BaoAn Blvd, |
| Shenzhen, China |
| Attention: Jun Li , |
| 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: | 2APD3-TF20 |
| Name of Grantee: | SHEN ZHEN TOMSTAR TECHNOLOGY CO., LTD |
| Equipment Class: | Part 15 Spread Spectrum Transmitter |
| Notes: | Smart Watch |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| 15C | 2402.0 - 2480.0 | 0.0009 |
| The output power listed is conducted. |