GOTD Black 4000 DPI Wired USB Optical Laser Comupter PC Laptop Mouse Mice 6 buttons with scroll wheel auto-changing shade LED Gaming Gamer Ergonomic Mouse Ergonomically designed, long-term use without fatigue. The Max DPI: 4000DPI. Buttons: 6 buttons with scroll wheel. Compatible with Windows XP, Vista, Windows 7, ME, 2000 and Mac OS...or latest. User for: The high-end players, gaming professional players.