The Mini USB Vacuum Keyboard 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            Use the brush and suction tube attachment for general cleaning of air fans， monitor and computer area， or dust on you desktopTwo vacuum cleaning attachments included - one bristle brush and another flexible rubberUse the keyboard attachment rubber to vacuum the dust and other particles trapped underneath the keyboard keys， by sliding the squeezable tube between keysSimple connect the Vacuum to the USB port of your laptop or PC computerNo need external power source， just plugs straight into any USB port                                                            Specifications            Type    USB Keyboard Vacuum Cleaner    <br>Material    Plastic    <br>Dimensions    (3.6 x 14.2) cm / (1.42 x 5.59) " (L x H)    <br>Cable Length    950 mm / 37 "    <br>Three Switch Levels    Power off， Turn on the LED Light， Turn on LED    <br>Color    Blue    <br>                                                            Package Includes            1 x Mini USB Vacuum Keyboard Cleaner 4 PC Laptop1 x Two Vacuum Cleaning Attachments