Simply connect the Vacuum to the USB port of your latop or Computer * Two Vacuum cleaning attachments included-one bristle brush attachment and one flexible rubber, computer keyboard tool attachment * Two switch levels-slides the switch to the first level to turn on the LED light, slide the switch to the second level to turn on the vacuum cleaner * Press the "High Power" button to increase suction power, for vacuuming heavier dirt and dust * Use keyboard attachment rubber to vacuum dust and other particles trapped underneath the keyboard keys, by sliding the squeezable tube between keys