The Penguin? Ambidextrous Vertical Mouse encourages a more ergonomic position when mousing with it's vertical design. It has BioCote? Anti-bacterial protection to keep your Penguin? fresher and cleaner for longer and it's wireless design helps to keep you tangle free. The easy-glide symmetrical base with precision laser and scroll wheel aids fast, accurate tracking and document scrolling and the central bow tie switch allows easy transition between right and left handed use. Adjustable 400, 600, 800 or 1200 dpi settings - Encourages fast and precise operating movements and it is compatible with Linux, Windows 2000, XP, Vista, 7, 8, 10 and versions of these, MAC OS X 10.6 and above.