1. Simply connect the Vacuum to the USB port of your laptop or computer.
2. Two Vacuum cleaning attachments included-one bristle brush attachment and one flexible rubber， computer keyboard tool attachment.
3. Use the keyboard attachment rubber to vacuum the dust and other particles trapped underneath the keyboard keys， by sliding the the squeezable tube between keys.
4. Use the brush & suction tube attachment for general cleaning of air vents (Fan)， Monitor and computer areas， or dust on your desktop. 
5. Requires no external power source， plugs straight into any USB port.

COUTION

1. High power button should not be pressed while U-VAC motor is being switched on to keep the voltage jump within USB limits(500mA) during motor strat up.
2. Do not immerse in water and do not use to vacuum water.
3. Unplug from USB port when unit is not in use