FCC ID 2AURH-V25Z
Smart Watch
by Shenzhen Changtai Electronics Co., Ltd
Grantee Code: 2AURH Product Code: V25Z
Latest application date: 2025-01-16
FCC ID Device Details
| FCC ID | 2AURH-V25Z |
|---|---|
| Mirrors | fcc.id | gov | fccid.ai |
| Grantee Code | 2AURH |
| Product Code | V25Z |
| Applicant Business | Shenzhen Changtai Electronics Co., Ltd 🇨🇳 |
| Related Domains |  shirajo.com |
| Equipment Class | Smart Watch |
| Test Firm | Shenzhen EU Testing Laboratory Limited |
Operating Frequencies
| Frequency Range | Application Purpose | Final Action Date |
|---|---|---|
| 2402-2480 MHz | Class II permissive change or modification of presently authorized equipment | 2025-01-16 |
| 2402-2480 MHz | Original Equipment | 2024-09-04 |
Exhibits
| Document | Type | Available | File |
|---|---|---|---|
| User manual | Users Manual | 2025-03-04 | PDF 697.7 KB |
| Internal photos | Internal Photos | 2025-03-04 | PDF 2.4 MB |
| Internal photos | Internal Photos | 2025-01-16 | PDF 3 MB |
| External photos | External Photos | 2025-03-04 | PDF 2.2 MB |
| External photos | External Photos | 2025-01-16 | PDF 3 MB |
| Label | ID Label/Location Info | 2025-01-16 | PDF 58.5 KB |
| Label and label location | ID Label/Location Info | 2024-09-04 | PDF 14.2 KB |
| Test setup photos | Test Setup Photos | 2025-03-04 | PDF 1,018.3 KB |
| Test setup | Test Setup Photos | 2025-01-16 | PDF 1,019.1 KB |
| Antenna specification | Test Report | 2025-01-16 | PDF 705.7 KB |
| Test report | Test Report | 2025-01-16 | PDF 2.1 MB |
| Antenna information | Test Report | 2024-09-04 | PDF 558.2 KB |
| Appendix D test data BT LE | Test Report | 2024-09-04 | PDF 1.3 MB |
| Test Report BT LE | Test Report | 2024-09-04 | PDF 1.6 MB |
| Covered equipment list attestation | Attestation Statements | 2025-01-16 | PDF 549.9 KB |
| US agent designation attestation | Attestation Statements | 2025-01-16 | PDF 122.4 KB |
| Agent attestation letter | Attestation Statements | 2024-09-04 | PDF 128.9 KB |
| Covered equipment identification letter | Attestation Statements | 2024-09-04 | PDF 159.5 KB |
| Covered equipment letter | Attestation Statements | 2024-09-04 | PDF 162.3 KB |
| Agent letter | Cover Letter(s) | 2025-01-16 | PDF 269.8 KB |
| Agent letter | Cover Letter(s) | 2025-01-16 | PDF 469.3 KB |
| Confidentiality request letter | Cover Letter(s) | 2025-01-16 | PDF 296.3 KB |
| FCC C2PC LETTER | Cover Letter(s) | 2025-01-16 | PDF 449.8 KB |
| Model difference letter | Cover Letter(s) | 2025-01-16 | PDF 1.3 MB |
| Confidentiality request letter | Cover Letter(s) | 2024-09-04 | PDF 152.8 KB |
| Confidentiality request short term letter | Cover Letter(s) | 2024-09-04 | PDF 153.8 KB |
| Letter of declaration model difference | Cover Letter(s) | 2024-09-04 | PDF 107.1 KB |
| RF exposure info | RF Exposure Info | 2025-01-16 | PDF 217.1 KB |
| RF exposure evaluation | RF Exposure Info | 2024-09-04 | PDF 215.6 KB |
| Block Diagram Metadata only | Block Diagram | PDF 42.9 KB | |
| Block diagram Metadata only | Block Diagram | PDF 124.2 KB | |
| Schematic Metadata only | Schematics | PDF 46.2 KB | |
| Schematics Metadata only | Schematics | PDF 119.9 KB | |
| Operation description Metadata only | Operational Description | PDF 70.3 KB | |
| Operation description Metadata only | Operational Description | PDF 84 KB |
Application Information
| Application ID | VYiFmAwZXviMANS/0AEtuQ== |
|---|---|
| Final Action Date | 2025-01-16 |
| Application Purpose | Class II permissive change or modification of presently authorized equipment |
| Applicant FRN | 0028875409 |
| Model | V25Z |
| Frequency Range | 2402-2480 MHz |
| Equipment Class | DTS - Digital Transmission System |
| Device Description | Smart Watch |
| Responsible Party | Justin Wu, Product manager, pe01@shirajo.com , 13410778119 |
| Test Firm | Sally Zhang, Shenzhen EU Testing Laboratory Limited, sally.zhang@eu-test.com  , (86)-18824580176 |
| TCB Email | TCBAdmin@compliancetesting.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 | Power listed is maximum peak conducted output power. This filing meets the SAR threshold exclusion set forth in KDB 447498 and therefore can be used in mobile/portable configurations. The antenna used for this transmitter must not transmit simultaneously with any other antenna or transmitter, except in accordance with FCC multi-transmitter product procedures. Users and installers must be provided with antenna installation instructions and transmitter operating conditions for satisfying RF exposure compliance. Class II permissive change. |
Applications
| Application ID | Date | Purpose |
|---|---|---|
| VYiFmAwZXviMANS/0AEtuQ== | 2025-01-16 | Class II permissive change or modification of presently authorized equipment |
| b4Q6LQ3mNEFraLKkN7s4DQ== | 2024-09-04 | Original Equipment |
Equipment Authorization
| Frequency | Output | Rules |
|---|---|---|
| 2402-2480 MHz | 0.0007000 | 15C |
Grants
TCB Grant - Application VYiFmAwZXviMANS/0AEtuQ==
| 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: 01/16/2025 Application Dated: 01/16/2025 |
| Shenzhen Changtai Electronics Co., Ltd |
| Building#A1, 8th floor, The third industrial Park |
| DaWangShan, Shajing Town |
| BaoAn District, Shenzhen, 518104 China |
| Attention: Justin Wu , Product 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: | 2AURH-V25Z |
| Name of Grantee: | Shenzhen Changtai Electronics 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 |
| Power listed is maximum peak conducted output power. This filing meets the SAR threshold exclusion set forth in KDB 447498 and therefore can be used in mobile/portable configurations. The antenna used for this transmitter must not transmit simultaneously with any other antenna or transmitter, except in accordance with FCC multi-transmitter product procedures. Users and installers must be provided with antenna installation instructions and transmitter operating conditions for satisfying RF exposure compliance. Class II permissive change. |
EAS Grant - Application VYiFmAwZXviMANS/0AEtuQ==
| COPY |
FEDERAL COMMUNICATIONS COMMISSION WASHINGTON, D.C. 20554 GRANT OF EQUIPMENT AUTHORIZATION |
COPY |
| Certification |
|
Shenzhen Changtai Electronics Co., Ltd Building#A1, 8th floor, The third industrial Park DaWangShan, Shajing Town BaoAn District, Shenzhen, 518104 China |
Date of Grant: 01/16/2025 Application Dated: 01/16/2025 |
| Attention: Justin Wu , Product 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: | 2AURH-V25Z |
| Name of Grantee: | Shenzhen Changtai Electronics Co., Ltd |
| Equipment Class: | Digital Transmission System |
| Notes: | Smart Watch |
| Modular Type: | Does not apply |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| 15C | 2402.0 - 2480.0 | 0.0007 |
| Power listed is maximum peak conducted output power. This filing meets the SAR threshold exclusion set forth in KDB 447498 and therefore can be used in mobile/portable configurations. The antenna used for this transmitter must not transmit simultaneously with any other antenna or transmitter, except in accordance with FCC multi-transmitter product procedures. Users and installers must be provided with antenna installation instructions and transmitter operating conditions for satisfying RF exposure compliance. Class II permissive change. |
| Mail To: | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
KL-Certification GmbH Heinrich-Hertz-Allee 7 St. Ingbert, 66386 Germany |
Date of Grant: 09/04/2024 Application Dated: 09/04/2024 |
| Shenzhen Changtai Electronics Co., Ltd |
| Building#A1, 8th floor, The third industrial Park |
| DaWangShan, Shajing Town |
| BaoAn District, Shenzhen, 518104 China |
| Attention: Justin Wu , Product 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: | 2AURH-V25Z |
| Name of Grantee: | Shenzhen Changtai Electronics 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 |
| Power listed is maximum peak conducted output power. This filing meets the SAR threshold exclusion set forth in KDB 447498 and therefore can be used in mobile/portable configurations. The antenna used for this transmitter must not transmit simultaneously with any other antenna or transmitter, except in accordance with FCC multi-transmitter product procedures. Users and installers must be provided with antenna installation instructions and transmitter operating conditions for satisfying RF exposure compliance. |
EAS Grant - Application b4Q6LQ3mNEFraLKkN7s4DQ==
| COPY |
FEDERAL COMMUNICATIONS COMMISSION WASHINGTON, D.C. 20554 GRANT OF EQUIPMENT AUTHORIZATION |
COPY |
| Certification |
|
Shenzhen Changtai Electronics Co., Ltd Building#A1, 8th floor, The third industrial Park DaWangShan, Shajing Town BaoAn District, Shenzhen, 518104 China |
Date of Grant: 09/04/2024 Application Dated: 09/04/2024 |
| Attention: Justin Wu , Product 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: | 2AURH-V25Z |
| Name of Grantee: | Shenzhen Changtai Electronics Co., Ltd |
| Equipment Class: | Digital Transmission System |
| Notes: | Smart Watch |
| Modular Type: | Does not apply |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| 15C | 2402.0 - 2480.0 | 0.0007 |
| Power listed is maximum peak conducted output power. This filing meets the SAR threshold exclusion set forth in KDB 447498 and therefore can be used in mobile/portable configurations. The antenna used for this transmitter must not transmit simultaneously with any other antenna or transmitter, except in accordance with FCC multi-transmitter product procedures. Users and installers must be provided with antenna installation instructions and transmitter operating conditions for satisfying RF exposure compliance. |
| Mail To: |