1. Introduction
This manual provides instructions for the safe and effective use of your onerbl 12V AC/DC Adapter. This adapter is designed to provide reliable power to compatible electronic devices, including various PRO Wireless VHF Microphone Systems and other specified equipment. Please read this manual thoroughly before use and retain it for future reference.
The onerbl 12V AC/DC Adapter is a compact and efficient power solution. Its design ensures compatibility with a wide range of devices requiring a 12V DC input.

Image 1.1: The onerbl 12V AC/DC adapter, showing its compact design and standard plug.
2. Safety Information
To ensure safe operation and prevent damage, please observe the following safety guidelines:
- Use only with devices requiring 12V DC input and a compatible connector type.
- Do not expose the adapter to water, moisture, or extreme temperatures.
- Avoid dropping or subjecting the adapter to strong impacts.
- Do not attempt to open or modify the adapter.
- Ensure proper ventilation around the adapter during use. Avoid covering it with cloths or other materials.
- Unplug the adapter from the power outlet when not in use for extended periods.
- Keep out of reach of children.
- This adapter features built-in protection against short-circuit, over-voltage, and over-current to safeguard your devices.

Image 2.1: The adapter includes multiple protection features for electrical safety.
3. Setup Instructions
Follow these steps to properly set up your onerbl 12V AC/DC Adapter:
- Verify Compatibility: Before connecting, ensure your device requires a 12V DC power input and has a compatible power port. Refer to your device's user manual for specific power requirements.
- Connect to Device: Insert the DC output plug of the adapter firmly into the power input port of your electronic device. Ensure a secure connection.
- Connect to Power Outlet: Plug the AC input prongs of the adapter into a standard 100-240V AC 50/60Hz wall outlet. Ensure the outlet is easily accessible.
- Power On Device: Once connected, power on your device as usual. The adapter will automatically supply power.

Image 3.1: Example of the adapter connected to a power source and a compatible device.
4. Operating the Adapter
The onerbl 12V AC/DC Adapter operates automatically once connected to a power source and a compatible device. It converts the AC wall current to the required 12V DC power for your device. No user interaction is required during operation.
The adapter is designed for continuous use with appropriate ventilation. If the adapter feels warm during operation, this is normal. However, if it becomes excessively hot, disconnect it immediately and check for proper ventilation or potential issues with the connected device.
5. Maintenance and Care
Proper maintenance ensures the longevity and reliable performance of your adapter:
- Cleaning: Disconnect the adapter from both the power outlet and your device before cleaning. Use a soft, dry cloth to wipe the exterior. Do not use liquid cleaners, abrasive materials, or solvents, as these can damage the casing or internal components.
- Storage: Store the adapter in a cool, dry place when not in use. Avoid wrapping the cable too tightly around the adapter, as this can stress the cable and lead to internal wire damage over time.
- Inspection: Periodically inspect the adapter and cable for any signs of damage, such as frayed wires, cuts in the insulation, bent prongs, or cracked casing. Discontinue use immediately if any damage is observed.

Image 5.1: The adapter features a durable design with quality materials like copper wire and a PVC jacket.
6. Troubleshooting
If you encounter issues with your adapter, refer to the table below for common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not power on | Adapter not plugged in securely | Ensure adapter is securely plugged into both the wall outlet and the device. |
| Wall outlet has no power | Test the wall outlet with another device or check the circuit breaker. | |
| Device power port issue | Check the device's power port for damage or debris. | |
| Incompatible device | Verify your device's power requirements match the adapter's output (12V DC). | |
| Adapter feels excessively hot | Overload or poor ventilation | Ensure the adapter is not covered and has adequate airflow. Disconnect if it becomes excessively hot and allow it to cool. |
| Visible damage to adapter/cable | Physical damage | Discontinue use immediately. Do not attempt to repair. Contact support for assistance. |
7. Specifications
Technical details of the onerbl 12V AC/DC Adapter:
- Input: AC 100-240V, 50/60Hz, 0.3A (Worldwide AC Input)
- Output: DC 12V
- Cable Length: Approximately 76 inches (193 cm)
- Adapter Body Dimensions (L x W x H): Approximately 2.6 inches x 1.6 inches x 1.2 inches (6.6 cm x 4.1 cm x 3.0 cm)
- Protection Features: Short-circuit protection, Over-voltage protection, Over-current protection

Image 7.1: Physical dimensions of the adapter and its cable length.
8. Compatibility
This onerbl 12V AC/DC Adapter is compatible with a range of devices requiring a 12V DC input, including but not limited to:
- PRO Wireless VHF Microphone System PDWM2400
- PRO Wireless VHF Microphone System PDWM2600
- PRO Wireless VHF Microphone System PDWM2700
- PRO Wireless VHF Microphone System PDWM2800
- PRO Wireless VHF Microphone System PDWM3300
- PRO Wireless VHF Microphone System PYPDWM2100
- Pyle PVTTBT6, PVTTBT6OR, PVTTBT6BR, PVTTBT6BK Bluetooth Classic Vintage Style Vinyl Record Player Turntable & Speaker
- PHA40 Headphone Amplifier

Image 8.1: The adapter supports a wide range of 12V DC compatible applications.
9. Warranty Information
This product comes with a standard manufacturer's warranty. For specific warranty terms, conditions, and duration, please refer to the product packaging or contact the seller directly through the platform where the product was purchased. Keep your proof of purchase for warranty claims.
10. Customer Support
For technical assistance, troubleshooting guidance beyond this manual, or customer service inquiries, please contact the seller or manufacturer. You can typically find contact information on the product packaging or through the online platform where you purchased the item.
When contacting support, please have your product model (onerbl 12V AC/DC Adapter) and purchase details readily available.