Etiger&reg; Computer Vacuum Mini USB Keyboard Cleaner Desktop Laptop Brush Dust Cleaning Kit (Color ships in random) Mini size, easy to clean the dirt at the corner of the keyboard Also designed for vacuuming heavier dirt and dust Great for the cleaning of the keyboard, printer, camera equipment, audio-visual equipment and office electronic equipment Usage: Simply use, only need to connect the vacuum to the USB port of your laptop or computer, no external power source required. Four color and color ship in random.