Introduction
This user manual provides essential information for the safe and effective use of your GUY-TECH AC/DC Adapter. This adapter is designed to be compatible with devices such as the Roberts Revival iStream 2 Wifi, DAB FM, portable Internet radio, and other music players, providing a reliable power source with a European plug.
Safety Information
- Input Voltage: Ensure the adapter's input voltage (100V - 240V worldwide) matches the local power supply.
- Protection Features: The adapter includes overvoltage output protection, overcurrent protection, and short-circuit output protection for safe operation.
- Usage Environment: Use the adapter in a dry environment. Avoid exposure to water or excessive humidity.
- Ventilation: Do not cover the adapter during use to ensure proper ventilation and prevent overheating.
- Damage: Do not use the adapter if the cable or plug is damaged. Contact support for replacement.
- Children: Keep out of reach of children.
Package Contents
Your package should contain the following items:
- 1 x GUY-TECH AC/DC Adapter Charger
- 1 x European Plug Adapter (if included as a separate component)
Note: This adapter is a new replacement and not an original product from the device manufacturer.
Setup
- Verify Compatibility: Before connecting, ensure that your device requires the specific voltage and current output provided by this GUY-TECH adapter. This adapter is compatible with Roberts Revival iStream 2 Wifi, DAB FM, portable Internet radio, and similar music players.
- Connect to Device: Insert the DC output plug of the adapter firmly into the power input port of your device.
- Connect to Power Outlet:

Image 1: The GUY-TECH AC/DC Adapter with its attached cable and the separate European plug adapter.
If your adapter comes with a separate European plug adapter, attach it to the main AC/DC adapter unit. Then, plug the entire assembly into a standard European wall socket (100V-240V AC).

Image 2: A close-up view of the European plug adapter, showing its two round pins and how it connects to the main adapter.
- Power On: Once connected, your device should receive power. Turn on your device as per its own instructions.
Operating
The GUY-TECH AC/DC Adapter operates automatically once connected to a power source and a compatible device. It converts the AC wall current to the appropriate DC voltage required by your device. The high power exchange efficiency helps maintain a stable operating temperature.
No user interaction is required for the adapter's operation beyond proper connection.
Maintenance
- Cleaning: Disconnect the adapter from the power outlet and your device before cleaning. Use a soft, dry cloth to wipe the surface. Do not use liquid cleaners or aerosols.
- Storage: When not in use, store the adapter in a cool, dry place, away from direct sunlight and extreme temperatures.
- Cable Care: Avoid bending or crimping the power cable excessively. Do not place heavy objects on the cable.
- Inspection: Periodically inspect the adapter, cable, and plugs for any signs of damage.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device not powering on. | Adapter not properly connected to power outlet or device. | Ensure all connections are secure. Try a different power outlet. |
| Device not powering on. | Adapter is incompatible with the device. | Verify the voltage and current requirements of your device match the adapter's specifications. |
| Adapter feels hot. | Normal operation, or poor ventilation. | A slight warmth is normal. Ensure the adapter is not covered and has adequate airflow. If it's excessively hot, disconnect immediately and contact support. |
| Flickering power/intermittent connection. | Loose connection or damaged cable/plug. | Check all connections. Inspect the cable and plugs for damage. If damaged, discontinue use and replace. |
Specifications
| Feature | Detail |
|---|---|
| Brand | GUY-TECH |
| Model Number | EXEUE18411 |
| Input Voltage | 100V - 240V (Worldwide) |
| Special Features | Universal, Travel |
| Color | Black |
| Power Source | Electric Cable |
| Compliant Specifications | CE, FCC, RoHS |
Warranty and Support
This product is a replacement adapter. For any issues or support, please contact the seller directly. The seller for this product is Expect Technology. Please refer to your purchase documentation for specific return policies and warranty information, which typically includes a 30-day return period.
Ensure you choose the correct adapter for your device before placing an order to avoid compatibility issues.





