Welcome to HUMI store. Specification Battery version Battery life: about 15 hours for 1st gear, 10 hours for 2nd gear, 3 hours for 3rd fan Charging time: about 3 hours Rated input: DC5.0V/2.0A Working current: 0.3-1A Rated power: ≤4W Battery capacity: 4000mAh Host material: ABS/PP/silicone/electronic components Package list Fan *1 Wall hook*1 Type-C cable*1 User Manual*1