Specifications
Input Voltage : 5V DC
Rated Power : 5W
Battery Type : 3.7V 1800mAh Lithium Ion
with safety battery features: PTC, PRV, CID
Charging Time : 6 Hours
Usage Duration:  Fan:
Low: 4H
Mid: 3H
High: 2H
Product Features:
- brushless DC motor
- handy and portable
- with micro USB charging port
- with overcharge and over discharge protection
- with charging and full charge indicators