UINSTONE Gaming Mouse With Adjustable 4 Levels of 3200 DPI 7 Buttons scroll wheel LED Optical USB Wired Gaming mice - Black USB plug and play, 7 buttons with 3D anti-skid scroll wheel. Tracking systems: Optical.4 Mode Adjustable DPI Switch: 1000/1600/2400/3200, up to 3200 DPI. Upgraded Design with LED illuminated rubberized Scroll Wheel,OMRON Micro Switch provides Lifespan of up to 6 Million Button Clicks High-performance Optical Gaming Chipset.Works with Windows 2000, XP,ME, Vista, 7 and 8 and Mac OS X Comfortable palm feeling with high quality ABS material.Ergonomically designed, feel comfortable, long-term use without fatigue. Anti-skidding rubber patterns enable your gaming with much accurate attack.