The Two-piece Computer Mini Vacuum Cleaner is specifically designed to help keep keyboards clean. Simple connect the Vacuum Keyboard Cleaner to the USB port of your laptop or PC computer. No need external power source， just plugs straight into any USB port. They can also be used to clean other electronic devices.                                    Features            Requires no external power source， plugs straight into any USB portSimply connect the Vacuum cleaner to the USB port of your laptop or ComputerVacuum cleaning attachments included-one bristle brush attachment and one flexible rubber， computer keyboard tool attachmentTwo switch levels-slide the switch to the first level to turn on the LED light and the vacuum cleaner， slide the switch to the second level to turn off the vacuum cleanerUse the keyboard attachment rubber to vacuum the dust and other particles trapped underneath the keyboard keys， by sliding the squeezable tube between keysUse the brush and suction tube attachment for general cleaning of air vents (Fan)， Monitor and computer areas， or dust on your desktop                                                            Specifications            Color    Green    <br>Interface    USB    <br>Dimensions    (5.51 x 1.5 x 1.38) " / (14 x 3.8 x 3.5) cm (L x W x H)    <br>Weight    3.21 oz / 91 g    <br>                                                            Package Includes            1x Computer Mini Vacuum Cleaner                                                            Extra Info            Caution: Do not immerse in water and do not use to vacuum waterUnplug from USB port when unit is not in use