FCC ID Y9ZMRX21A1WS7
WS ALERT X+ Headset
by 3M Company
Grantee Code: Y9Z Product Code: MRX21A1WS7
Latest application date: 2025-09-22
FCC ID Device Details
Operating Frequencies
| Frequency Range | Application Purpose | Final Action Date |
|---|---|---|
| 2402-2480 MHz | Class II permissive change or modification of presently authorized equipment | 2025-09-22 |
| 2402-2480 MHz | Class II permissive change or modification of presently authorized equipment | 2025-09-22 |
| 2402-2480 MHz | Original Equipment | 2024-09-16 |
| 2402-2480 MHz | Original Equipment | 2024-09-16 |
Exhibits
| Document | Type | Available | File |
|---|---|---|---|
| Manual | Users Manual | 2025-03-15 | PDF 5.2 MB |
| Internal Photos | Internal Photos | 2025-03-15 | PDF 4 MB |
| External Photos | External Photos | 2025-09-22 | PDF 159.3 KB |
| External Photos | External Photos | 2025-03-15 | PDF 89.1 KB |
| Label Information | ID Label/Location Info | 2024-09-16 | PDF 762 KB |
| Test Setup Photos | Test Setup Photos | 2025-09-22 | PDF 3 MB |
| Test Setup Photos | Test Setup Photos | 2025-03-15 | PDF 3.1 MB |
| Test Report | Test Report | 2025-09-22 | PDF 537.3 KB |
| Antenna Report | Test Report | 2024-09-16 | PDF 321.7 KB |
| Test Report | Test Report | 2024-09-16 | PDF 2.1 MB |
| Test Report | Test Report | 2024-09-16 | PDF 3.7 MB |
| 2.911(d)(5)(i)-(ii) Covered Equipment | Attestation Statements | 2025-09-22 | PDF 140.9 KB |
| 2.911(d)(7) Agent of Service | Attestation Statements | 2025-09-22 | PDF 155.1 KB |
| 2.911(d)(5)(i)-(ii) Covered Equipment | Attestation Statements | 2024-09-16 | PDF 185.2 KB |
| 2.911(d)(7) Agent of Service | Attestation Statements | 2024-09-16 | PDF 116.8 KB |
| C2PC Cover Letter | Cover Letter(s) | 2025-09-22 | PDF 107.9 KB |
| Confidentiality Request | Cover Letter(s) | 2025-09-22 | PDF 122.9 KB |
| Confidentiality Request Long Term | Cover Letter(s) | 2024-09-16 | PDF 68.2 KB |
| Confidentiality Request Short Term | Cover Letter(s) | 2024-09-16 | PDF 69.5 KB |
| RF Exposure | RF Exposure Info | 2025-09-22 | PDF 454.1 KB |
| Block Diagram Metadata only | Block Diagram | PDF 79 KB | |
| Schematics Metadata only | Schematics | PDF 501.9 KB | |
| Schematics Metadata only | Schematics | PDF 1.8 MB | |
| Operational Description Metadata only | Operational Description | PDF 626.3 KB |
Application Information
| Application ID | PaKb85nurk31AaqeHly+vA== |
|---|---|
| Final Action Date | 2025-09-22 |
| Application Purpose | Class II permissive change or modification of presently authorized equipment |
| Applicant FRN | 0005881040 |
| Model | MRX21A1WS7 |
| Frequency Range | 2402-2480 MHz |
| Equipment Class | DSS - Part 15 Spread Spectrum Transmitter |
| Device Description | WS ALERT X+ Headset |
| Responsible Party | Yuriy Litvinov, ylitvinov@mmm.com  , 651-778-6336 |
| Test Firm | Yuriy Litvinov, 3M Company, Hardgoods Regulatory Engineering Lab, ylitvinov@mmm.com , 6517786336 |
| TCB Email | jeff.woods@tuvsud.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 |
|---|---|---|
| PaKb85nurk31AaqeHly+vA== | 2025-09-22 | Class II permissive change or modification of presently authorized equipment |
| 1Xz4bmcNhR1im8uccb/zkQ== | 2025-09-22 | Class II permissive change or modification of presently authorized equipment |
| pYyFRj26SRUakI0LLRQKZg== | 2024-09-16 | Original Equipment |
| m+S8lGrMXsSUT5id1z/qgg== | 2024-09-16 | Original Equipment |
Grants
TCB Grant - Application pYyFRj26SRUakI0LLRQKZg==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
TUV SUD America Inc. 401 Edgewater Place Suite #500 Wakefield, MA 01880 |
Date of Grant: 09/16/2024 Application Dated: 09/16/2024 |
| 3M Company |
| Personal Safety Division |
| 3M Center |
| St. Paul, MN 55144-1000 |
| Attention: Yuriy Litvinov , Lead EMC Engineer |
| 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: | Y9ZMRX21A1WS7 |
| Name of Grantee: | 3M Company |
| Equipment Class: | Part 15 Spread Spectrum Transmitter |
| Notes: | WS ALERT XPV Headset |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| 15C | 2402.0 - 2480.0 | 0.003 |
| Output power is Average conducted. |
EAS Grant - Application pYyFRj26SRUakI0LLRQKZg==
| COPY |
FEDERAL COMMUNICATIONS COMMISSION WASHINGTON, D.C. 20554 GRANT OF EQUIPMENT AUTHORIZATION |
COPY |
| Certification |
|
3M Company Personal Safety Division 3M Center St. Paul, MN 55144-1000 United States |
Date of Grant: 09/16/2024 Application Dated: 09/16/2024 |
| Attention: Yuriy Litvinov , Lead EMC Engineer |
| 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: | Y9ZMRX21A1WS7 |
| Name of Grantee: | 3M Company |
| Equipment Class: | Part 15 Spread Spectrum Transmitter |
| Notes: | WS ALERT XPV Headset |
| Modular Type: | Does not apply |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| 15C | 2402.0 - 2480.0 | 0.003 |
| Output power is Average conducted. |
| Mail To: | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
TUV SUD America Inc. 401 Edgewater Place Suite #500 Wakefield, MA 01880 |
Date of Grant: 09/22/2025 Application Dated: 09/22/2025 |
| 3M Company |
| Personal Safety Division |
| 3M Center |
| St. Paul, MN 55144-1000 |
| Attention: Yuriy Litvinov , Lead EMC Engineer |
| 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: | Y9ZMRX21A1WS7 |
| Name of Grantee: | 3M Company |
| Equipment Class: | Part 15 Spread Spectrum Transmitter |
| Notes: | WS ALERT X+ Headset |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| 15C | 2402.0 - 2480.0 | 0.003 |
| Output power is Average conducted. C2PC to add new models as described in this filing. |
TCB Grant - Application m+S8lGrMXsSUT5id1z/qgg==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
TUV SUD America Inc. 401 Edgewater Place Suite #500 Wakefield, MA 01880 |
Date of Grant: 09/16/2024 Application Dated: 09/16/2024 |
| 3M Company |
| Personal Safety Division |
| 3M Center |
| St. Paul, MN 55144-1000 |
| Attention: Yuriy Litvinov , Lead EMC Engineer |
| 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: | Y9ZMRX21A1WS7 |
| Name of Grantee: | 3M Company |
| Equipment Class: | Digital Transmission System |
| Notes: | WS ALERT XPV Headset |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| 15C | 2402.0 - 2480.0 | 0.0013 |
| Output power is Average conducted. |
EAS Grant - Application m+S8lGrMXsSUT5id1z/qgg==
| COPY |
FEDERAL COMMUNICATIONS COMMISSION WASHINGTON, D.C. 20554 GRANT OF EQUIPMENT AUTHORIZATION |
COPY |
| Certification |
|
3M Company Personal Safety Division 3M Center St. Paul, MN 55144-1000 United States |
Date of Grant: 09/16/2024 Application Dated: 09/16/2024 |
| Attention: Yuriy Litvinov , Lead EMC Engineer |
| 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: | Y9ZMRX21A1WS7 |
| Name of Grantee: | 3M Company |
| Equipment Class: | Digital Transmission System |
| Notes: | WS ALERT XPV Headset |
| Modular Type: | Does not apply |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| 15C | 2402.0 - 2480.0 | 0.0013 |
| Output power is Average conducted. |
| Mail To: | ||||||||||||||||||||||||||||||||||||||||||||
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
TUV SUD America Inc. 401 Edgewater Place Suite #500 Wakefield, MA 01880 |
Date of Grant: 09/22/2025 Application Dated: 09/22/2025 |
| 3M Company |
| Personal Safety Division |
| 3M Center |
| St. Paul, MN 55144-1000 |
| Attention: Yuriy Litvinov , Lead EMC Engineer |
| 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: | Y9ZMRX21A1WS7 |
| Name of Grantee: | 3M Company |
| Equipment Class: | Digital Transmission System |
| Notes: | WS ALERT X+ Headset |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| 15C | 2402.0 - 2480.0 | 0.0013 |
| Output power is Average conducted. C2PC to add new models as described in this filing. |