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 keyboard tool attachment.
3) Two switch levels-slide 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.
4) Press the "High power" button to increase suction power, for vacuuming heavier
dirt and dust.
5) Use the keyboard attachment rubber to vacuum the dust and0 other particles trapped underneath the keyboard keys, by sliding the squeezable tube between keys.
6) Use the brush and suction tube attachment for general cleaning of air vents (Fan),
Monitor and computer areas, or dust on your desktop.
7) Requires no external power source, plugs straight into any USB port. Voltage:
5V, current:  500mA.

Inner packing:
Unit size: 72*30*22mm
Gift box, plastic  box
Outer packing: 100pcs/ctn