D77 Desktop Automatic Shaking hHead Fan Mute Portable Home Office Dormitory USB Fan

1. Material: ABS + electronic components
2. Size: 14.9x12.8x19cm
3. Features: Angle adjustment, automatic head shaking, light operation, large-capacity battery, four-speed adjustment, strong wind
4. Use power: 4W
5. Power supply mode: USB/built-in lithium battery
6. Life time: 15 hours
7. Charging time: about 5 hours
8. Input current: 5V/1A
9. USB cable length: 120cm
10. Net weight: 428g
11. Gross weight: 548g
12. Battery capacity: 4000mAh 3.7V