1. Material: ABS/PP/fan circuit board
2. Power supply mode: USB charging / built-in battery power supply
3. Built-in battery: 1800 mAh lithium battery
4. Rated voltage: 5V
5. Rated power: 2.5W
6. Noise: 36dB or less
7. Speed adjustment gear: third gear
8. Dimensions: 11.2 x 11 x 22.7 cm
9. Net weight: 270 grams
10. One key to turn on three gears of wind
11. Adjustable bracket, 360 degree air supply
12. TYPE-C interface, multiple power supply methods