Specifications Sensor: Optical DPI: 800-1200-1600-2400-3200-4800 Buttons: 7 (programmable) Switch rating: 3 million clicks Backlight: 7 RGB Modes Polling rate: up to 500 Hz Interface: USB 2.0 Battery: 700mAh Size: 124 x 71 x 43 mm Features 2.4G wireless RGB backlight Fire buttons on the side