... function controlled by button 4.Portable,USB port mini fan 1.New style auto swing mini fan. 2.Excellent ... Weight:216g. 5.Long life and low noise kept by fan brushless motor. 6.Wire length:1.2m. 7.Control ... key switch,2 stalls, auto swing funtion controlled by the top button. 8.Pitch angle can be adjusted ... Smart shape,USB port power supply,energy saving,easy to carry. 10.OEM available, you can also print ...