100% stable optical mouse developed by HeatoN * Ergonomic designed right-hand gaming mouse / 1.5mm lift-off distance * Improved mouse wheel system / Easily change to 1000, 500 or 125 Hz * Plug and play! No drivers or software / DPI adjustment: 450/1150/2300 / Operating system: Win2000/XP/Vista/7, Mac OS X V10.2 after * Coating: Full rubber paint / Frames Per Second: 6,400 / Inches Per Second: 60 / Max. Acceleration: 20G * Dimensions: EC2: 120 x 40 x 58-65 mm / 4.72 x 1.57 x 2.28-2.56 Inches * USB report rate: 1000/500/125 Hz / Connector: USB / Buttons: 5 / Length of cable: 2m/6.6-Feet * Weight without cable: EC1, 97g - EC2, 93g. /