1. Product Overview
The TIDRADIO M15 is a long-range Global Push-to-Talk Over Cellular (POC) radio designed for extensive communication. It supports 4G network connectivity and integrates with the "Odmaster" phone application for enhanced friend and group communication functions. This device offers multi-carrier global coverage and comes with a free global SIM card including one year of free data, activated upon power-up.


2. Setup Guide
2.1 Initial Activation
Upon receiving your TIDRADIO M15, the included SIM card with a 1-year free data package will activate automatically once the device is powered on. No manual activation steps are typically required for the SIM card.
2.2 Charging the Device
Before first use, fully charge your TIDRADIO M15. The device uses a Type-C charging interface.
- Connect the Type-C charging cable to the radio's charging port.
- Connect the other end of the cable to a compatible power adapter (US Standard Plug or EU Standard Plug, depending on your region).
- A full charge typically takes approximately 4 hours.

2.3 Plug Type Information
- US Standard Plug: If you ordered the US version, the radio will be delivered with a US standard plug.
- EU Standard Plug: If you ordered the EU version, the radio will be delivered with an EU standard plug.
3. Operating Instructions
3.1 Basic Operation
The TIDRADIO M15 is a portable walkie-talkie with a display. Refer to the on-screen interface for current status, group information, and call options.
3.2 Using the Odmaster App
The Odmaster application extends the functionality of your TIDRADIO M15, enabling seamless communication between your radio and mobile phones.
- Intercom with Mobile Phones: The POC radio can communicate with mobile phones within the Odmaster group.
- Global Instant Intercom: Connect multiple walkie-talkies and phones globally for instant communication.
- Call Functions: Supports Full Call, Group Call, and Single Call options.
- Backend Management: The Odmaster APP provides free management of device settings and groups from the backend, ensuring privacy and security.



3.3 Operation Tutorial Video
For a visual guide on operating your TD-M15, please watch the official tutorial video:
4. Maintenance
4.1 Battery Care
- The TIDRADIO M15 is equipped with a 3000mAh battery, offering up to 96 hours of standby time.
- Charge the device regularly to maintain optimal battery health.
- Avoid fully discharging the battery frequently.
4.2 Cleaning
- Wipe the radio with a soft, dry cloth.
- Do not use harsh chemicals or abrasive cleaners.
4.3 Water Resistance
The TIDRADIO M15 is not waterproof or water-resistant. Avoid exposing the device to water or high humidity to prevent damage.
5. Troubleshooting
5.1 Common Issues & Solutions
- SIM Card Not Working: Ensure the SIM card is properly inserted. If issues persist, contact customer service for assistance with SIM card activation or data package status.
- QR Code Not Recognized (for Odmaster App): Verify that the QR code is clean and well-lit. Ensure your phone's camera has a clear view. If the problem continues, try reinstalling the Odmaster app or manually entering device details if the app allows.
- No Signal/Connectivity: Check if you are within 4G network coverage. Restart the device. If using the Odmaster app, ensure your phone has an active internet connection.
- Short Battery Life: Ensure the device is fully charged. Reduce screen brightness or disable unnecessary background apps if applicable.
If you encounter any problems not listed here, please contact customer service for further assistance.
6. Specifications
| Feature | Specification |
|---|---|
| Brand Name | TIDRADIO |
| Model Number | TD-M15 |
| Walkie Talkie Type | Portable |
| Output Power (W) | 0.5w-3w |
| Battery Capacity (mAh) | 3000mAh |
| Battery Included | Yes |
| Standby Time | 96 Hours |
| Charging Interface | Type-C |
| Waterproof / Water-Resistant | No |
| Material | Plastic |
| Frequency Range | 446MHz |
| Display | Yes |
| Network Traffic | 4G |
| Maximum Range | >50km (Global POC radio capability up to 5000KM) |
| Dimensions (H x W x D) | 118mm x 62mm x 36mm (4.64in x 2.44in x 1.41in) |
| Product Weight | 162g |
| Origin | Mainland China |
| Certification | CE, FCC |

7. User Tips
- Maximize Range: While the device has a global POC capability, local range can be affected by obstacles. For optimal performance, use in open areas or with clear line of sight.
- Odmaster App Integration: Fully utilize the Odmaster app for group management and seamless communication with both other radios and mobile phones.
- Battery Life: The 3000mAh battery provides extended use. For long trips, consider carrying a portable power bank for Type-C charging.
8. Warranty and Support
For any product-related issues, technical support, or warranty inquiries, please contact the seller or customer service directly. They will be able to provide assistance and guidance specific to your purchase.
Contact Information: If you encounter any problems, please contact customer service or contact us by email and we will help you.





