GoldTouch KOV-GTM-L 3 Buttons 1 x Wheel USB Wired Optical 1000 dpi Mouse Hand Orientation: Left Hand Maximum dpi: 1000 dpi Distance: 63.60 Operating System Supported: Windows XP Windows Vista Windows 7 Mac OS X 10.4 and later Linux UNIX Package Contents: Goldtouch Ergonomic Mouse Left Hand USB Corded by Ergoguys Documentation Parts: 1 year limited Labor: 1 year limited