6 buttons with scroll wheel.
Tracking systems:3D Optical.
The Max DPI: 2000DPI.
Adjustable DPI Switch: 800/1200/1600/2000 DPI.
Optical technology works on most surfaces.
Ergonomically designed, long-term use without fatigue.
Intelligent connectivity, no need to code, plug & play.
Built-weight iron, feel comfortable, mobile and stability.
Switch Life: 5 million cycle.
Size: 122 65 36mm
Weight: about 110g.
Compatible with Windows XP, Vista, Windows 7, ME, 2000 and Mac OS. or latest.