... &FCC certificated 4.2400RPM,Long life mini USB strong wind fan1.2400RPM speed,96mm blade diameter,new DC ... brushless motor,strong wind,low noise2.5V USB power supply,new environmental ... and contracted style, noble and elegant.6.Fan is with control switch,its angle can be adjusted up ... used in any occasion.10.Sofe wind,cool and refreshing,comfortable. mini USB strong wind fan