Tiazhan USB Desk Fan Mini Table Fan with 5 Speeds 3000mAh Rechargeable Portable

The portable fan with built-in 3000mAh battery keeps for 4-10h working, convenient for outdoors. The plug-and-play USB office fan can be adapted to power bank, laptop, car adapter and so on. This is a mini fan, measures 16.5 *17 cm (6.5” *6.69”), 320g, lightweight and space-saving.4 large blades design USB Fan cooling can make you keep cool and refreshed all day.The inbuilt brushless motor in electric table fan can support the blades run at high speed to produce powerful wind. You can feel from up to 7 meters away and an aerodynamic design & style to maximize air movement, 5-speed setting allows you to choose the comfortable speed on different occasions. You can press the button repeatedly on the back of the desk fan to switch from low, high to off. Quiet Wind in Sleep -1528rpm, Natural Wind-1737 rpm, Refreshing Wind-1976 rpm, Relaxing Natural Wind-2220 rpm, Strong Wind-2484 rpm