... :(on/off, speed, LED) . 3 speeds, low, medium and high, press the spreed to change,an LED light will ... 1) Plug the USB line(included) into the fan and into an laptop USB,or place 3AA batteries.2) Place ... at sight USB Tower Fan Specification:1) Use by USB line, you can use it when you play laptop or computer2) ... or shut off it7) With 3 speeds, low, medium and high, press the spreed to change. An LED light ...