DESCRIPTION: Black Gaming Optical Sensor, FanTech Phantom II VX6 Gaming Mouse Instantaneous Acceleration of Up to 60 IPS and 20G DPI 400-7,200 DPI Adjustable Polling Rate 20 Million Clicks 125Hz Lifetime Seven Buttons That Can Be Programmed on Their Own Nylon Braided USB Cable, 1.8m Dimensions: 124.5 x 65.5 x 41 mm; mass: 95 g