4000mAh battery, 21 hours of use time (first gear)
Power display remaining power
3-speed wind, large, medium and small wind
Detachable mask for easy removal and cleaning
Specifications:
Name: Mini Fan
Model: F3 Pro Wind
Voltage: DC 5V
Power: 3W
Use time: about 21h (first gear), 9.5h (second gear), 5.5h (third gear)
Power supply: Micro USB
Dimensions: 17.2 x 9 x 4.1 cm