Optical Sensor for Gaming On-the-fly acceleration of up to 60 IPS/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 Measurements: 124.5 x 65.5 x 41 mm Types: Gaming, Mouse, Mouse