Main Feature:
1. Plug and play, no external power supply is needed.
2. Power supply DC 5V direct from the USB port.
3. Keep fanning until you unplug the USB fan or turn off the notebook or PC.
4. Gentle ray, bright, with or without frequency change, benefit from preventing eyesight.
5. Power saving design: Low power consumption.
6. Durable soft fan blades make you free of injury.
7. Gently adjust the flexible neck of USB fan to position the breeze anyway you wish.