1. Introduction
This manual provides essential instructions for the safe and effective use of your onerbl AC/DC Adapter. This adapter is designed to provide power and charge compatible devices, specifically the Dolphin SP-1090RBT portable party speaker. Please read this manual thoroughly before use and retain it for future reference.
2. Safety Instructions
- Ensure the adapter's voltage and current ratings match your device's requirements before connecting.
- 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. Refer all servicing to qualified personnel.
- Unplug the adapter from the power outlet when not in use or during electrical storms.
- Keep out of reach of children.
- This adapter is designed for indoor use only.
3. Package Contents
- 1 x onerbl AC/DC Adapter

Image 1: The onerbl AC/DC Adapter, showing the main unit with its integrated power cord and barrel connector.
4. Setup and Connection
- Verify Compatibility: Ensure your device, such as the Dolphin SP-1090RBT speaker, requires a power input compatible with this adapter's specifications (Input: AC 100-240V 50/60Hz, Output: specific voltage/current for the speaker).
- Connect to Device: Insert the barrel connector of the adapter firmly into the power input port of your Dolphin SP-1090RBT speaker.
- Connect to Power Outlet: Plug the AC prongs of the adapter into a standard wall power outlet (100-240VAC, 50/60Hz).
- Power On: Once connected, your device should begin charging or receive power.

Image 2: The AC/DC adapter connected to a power strip, demonstrating a typical usage scenario on a desk.
5. Operating Instructions
The onerbl AC/DC Adapter operates automatically once connected. It provides a stable power supply to your compatible device and facilitates battery charging if your device has a rechargeable battery, like the Dolphin SP-1090RBT speaker with its built-in 4500mAh Lithium Phosphate battery.
- The adapter features built-in protection mechanisms including Over Voltage Protection (OVP), Over Current Protection (OCP), and Short Circuit Protection (SCP) to safeguard your devices.
- No user intervention is required for these protection features to function.

Image 3: Visual representation of the adapter's smart chip technology, highlighting short-circuit, over-voltage, and over-current protection features.
6. Maintenance and Care
- Cleaning: Disconnect the adapter from both 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: Store the adapter in a cool, dry place away from direct sunlight and extreme temperatures when not in use.
- Cable Care: Avoid bending or crimping the power cord excessively. Do not place heavy objects on the cord.

Image 4: An illustration detailing the durable design of the adapter's cable, featuring copper wire and a PVC jacket for enhanced longevity.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device not powering on/charging. |
|
|
| Adapter feels warm during use. | Normal operation. | Slight warmth is normal. If it becomes excessively hot or emits smoke/odor, disconnect immediately and cease use. |
| Intermittent power. | Loose connection or faulty cable. | Check connections. If the issue persists, the adapter may be faulty and require replacement. |
8. Specifications
- Input Voltage: 100-240VAC, 50/60Hz (Worldwide AC Input)
- Protection Features: Over Voltage Protection (OVP), Over Current Protection (OCP), Short Circuit Protection (SCP)
- Compatibility: Designed for Dolphin SP-1090RBT, SP1090RBT portable party speakers.
- Cable Length: Approximately 76 inches (6.3 feet)

Image 5: Detailed dimensions of the onerbl AC/DC Adapter, showing its compact size and the length of its integrated cable.

Image 6: An illustration comparing different cable lengths, emphasizing the extended cord design for user convenience.
9. Warranty and Support
This onerbl AC/DC Adapter is covered by a standard manufacturer's warranty. For specific warranty terms, please refer to the product packaging or contact your retailer. For technical support or inquiries, please reach out to the seller or manufacturer directly.





