1. Product Name: Ballet-USB Desktop Fan
2. Product model: 209
3. Rated input: DC5V=1.6A
4. Battery capacity: 3.7V 4000mAh
5. Unit size: 170x136x221mm
6. Charging time: 3-4 hours
7. Unit NW: 436g
8. Rotating angle: 120°
9.Color box size: 172X138X226mm
10. Auto rotating angel:120°
elevation angle:130°
11. easy to remove& clean the cover
12.contiuously variable to adjust the speed