... DC:5V3) Material: ABS 4) With 3 button function:(on/off, speed, LED) . 3 speeds, low, medium and high, press ... show the current speed 5) With common motor.6)The separate LED backlight function makes the fan good-looking7) ... 1) Plug the USB line(included) into the fan and into an laptop USB,or place 3AA batteries. ... 2) Place the fan on a dry, level surface.3) Press the power button to ...