1. Introduction
This manual provides essential instructions for the safe and effective use of the onerbl AC-DC Adapter. This power supply is designed to convert AC power from an electrical outlet into the DC power required by compatible devices, specifically various QUINEAR Air Compression Leg Massager models. Please read this manual thoroughly before use and retain it for future reference.
2. Product Overview
The onerbl AC-DC Adapter is a reliable power solution for your compatible devices. It features a standard US plug for AC input and a barrel connector for DC output.

Figure 2.1: Front view of the onerbl AC-DC Adapter, showing the US plug and barrel connector.

Figure 2.2: Front and side profiles of the adapter, highlighting its compact design.

Figure 2.3: Diagram illustrating the physical dimensions of the adapter and its cable length.
3. Safety Information
To ensure safe operation and prevent damage, please observe the following safety precautions:
- Use the adapter only with devices that match its voltage and amperage specifications.
- 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. There are no user-serviceable parts inside.
- Unplug the adapter from the power outlet when not in use for extended periods.
- Keep out of reach of children.
4. Setup
- Verify Compatibility: Ensure your device requires a 12V DC, 1A power supply and has a compatible barrel connector. This adapter is compatible with QUINEAR Air Compression Leg Massager models QN-005A, QW-001A, QN-019A, QN-038F, and BD1464.
- Connect to Device: Insert the barrel connector end of the adapter firmly into the power input port of your QUINEAR Air Compression Leg Massager.
- Connect to Power Outlet: Plug the AC prongs of the adapter into a standard 100-240V AC electrical wall outlet.

Figure 4.1: The adapter connected to a compatible device, ready for use.
5. Operating Instructions
Once the adapter is correctly connected to both the power outlet and your QUINEAR Air Compression Leg Massager, the massager should receive power. Refer to your specific QUINEAR Leg Massager's instruction manual for details on operating the massager itself.
The adapter provides continuous power to your device. It is designed for reliable operation and includes built-in over-voltage and over-heat protection features.
6. Maintenance
The onerbl AC-DC Adapter requires minimal maintenance:
- Keep the adapter clean by wiping it with a dry, soft cloth.
- Do not use liquid cleaners or abrasive materials.
- Regularly inspect the cable and connector for any signs of damage. If damage is observed, discontinue use immediately.
- Store the adapter in a cool, dry place when not in use.
7. Troubleshooting
If you encounter issues with your onerbl AC-DC Adapter, consider the following:
- No Power to Device:
- Ensure the adapter is securely plugged into both the wall outlet and the device.
- Check if the wall outlet is functional by plugging in another appliance.
- Verify that your device is compatible with the adapter's voltage and amperage.
- Adapter Feels Warm: It is normal for the adapter to feel slightly warm during operation. If it becomes excessively hot, unplug it immediately and contact support.
If troubleshooting steps do not resolve the issue, please contact customer support.
8. Specifications
| Brand | onerbl |
| Model Number | 4741641455687 |
| Input Voltage | 100-240V AC (50/60Hz) |
| Output Voltage | 12V DC |
| Output Amperage | 1A (1000mA) |
| Connector Type | Barrel Connector |
| Compatible Devices | QUINEAR Air Compression Leg Massager models: QN-005A, QW-001A, QN-019A, QN-038F, BD1464 |
| Manufacturer | Shenzhen Waweis Technology Co., Ltd |
9. Customer Support
For any questions, concerns, or technical assistance regarding your onerbl AC-DC Adapter, please refer to the retailer's support channels or the manufacturer's official website.