1. Introduction
This manual provides essential instructions for the safe and effective use of your eeTao 5V AC/DC Adapter Charger. This power supply is specifically designed to be compatible with the Umickoo J02 Facial Cleansing Brush, ensuring proper charging and operation.
Please read this manual thoroughly before using the product and retain it for future reference.
2. Safety Information
To prevent electric shock, fire, or damage to the product, please observe the following safety precautions:
- Use the adapter indoors only. Do not expose it to rain, moisture, or extreme temperatures.
- Do not expose the adapter to liquids. If the adapter comes into contact with liquid, discontinue use immediately.
- Unplug the adapter from the power outlet when not in use for extended periods.
- Do not attempt to disassemble or modify the adapter. There are no user-serviceable parts inside.
- Ensure the wall outlet voltage matches the adapter's input voltage range (100-240VAC).
- This adapter features Over Voltage Protection (OVP), Over Current Protection (OCP), and Short Circuit Protection (SCP) to safeguard your devices.
- Keep out of reach of children.
3. Package Contents
Your package should contain the following item:
- 1 x eeTao 5V AC/DC Adapter Charger

Image: The eeTao 5V AC/DC Adapter Charger with its attached coiled cable.
4. Setup
Follow these steps to set up your eeTao 5V AC/DC Adapter Charger:
- Ensure the Umickoo J02 Facial Cleansing Brush is turned off before connecting the charger.
- Connect the small charging plug of the adapter cable into the charging port on your Umickoo J02 Facial Cleansing Brush.
- Plug the 2-prong AC adapter into a standard 100-240VAC 50/60Hz wall outlet.

Image: The eeTao power supply adapter is compatible with Umickoo J02 Facial Cleansing Brushes. Note: The facial cleansing brush is not included with the adapter.
5. Operating Instructions
Once the adapter is properly connected to both the wall outlet and the Umickoo J02 Facial Cleansing Brush, it will begin charging the device. The charging status (e.g., indicator lights, battery level) will typically be displayed on the facial cleansing brush itself.
Refer to the user manual of your Umickoo J02 Facial Cleansing Brush for specific details regarding charging indicators, estimated charging times, and battery care.
6. Maintenance
Proper maintenance ensures the longevity and safe operation of your adapter:
- Cleaning: Disconnect the adapter from the power source before cleaning. Use a soft, dry cloth to wipe the surface. Do not use liquid cleaners, abrasive pads, or chemical solvents.
- Storage: Store the adapter in a cool, dry place away from direct sunlight and extreme temperatures when not in use. Avoid tightly coiling the cable to prevent damage.
- Inspection: Periodically inspect the adapter and cable for any signs of damage, such as cuts, frayed wires, or bent prongs. If damage is found, discontinue use and replace the adapter.

Image: Diagram illustrating the internal components of a high-quality cable, including the inner insulator, coarsening core, and TPE protective layer, highlighting durability.
7. Troubleshooting
If you encounter issues with your eeTao 5V AC/DC Adapter Charger, try the following solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Device not charging | Loose connection, faulty outlet, damaged cable/adapter | 1. Ensure all connections are secure. 2. Try a different wall outlet. 3. Inspect the cable and adapter for visible damage. If damaged, replace the adapter. |
| Adapter feels hot | Normal operation, excessive load, poor ventilation | A slight warmth is normal. Ensure the adapter is in a well-ventilated area. If it becomes excessively hot or emits smoke/odor, unplug immediately and discontinue use. |
| Intermittent charging | Loose connection, damaged cable, incompatible device | 1. Check connections. 2. Inspect cable for damage. 3. Confirm compatibility with Umickoo J02 Facial Cleansing Brush. |
8. Specifications
Key technical specifications for the eeTao 5V AC/DC Adapter Charger:
| Feature | Detail |
|---|---|
| Brand | eeTao |
| Model Number | Umickoo J02 charger |
| Compatible Devices | Umickoo J02 Facial Cleansing Brush Charger |
| Input Voltage | 100-240 Volts (AC), 50/60Hz |
| Output Voltage | 5 Volts (DC) |
| Output Current | 0.9 Amps |
| Connector Type | 2-Prong (US Standard) |
| Item Weight | 3 Ounces |

Image: The eeTao AC/DC adapter displaying its input/output specifications and various regulatory compliance marks.
9. Warranty and Support
eeTao stands behind the quality of its products. This adapter comes with the following warranty:
- Refund Policy: 30 Days Refund
- Exchange Policy: 24 Months Exchange
For any questions, technical support, or warranty claims, please contact eeTao customer service through the retailer where the product was purchased. Please have your purchase details and product model number (Umickoo J02 charger) ready when contacting support.