PixArt 3519 Sensor for Gaming On-the-fly acceleration of up to 48 IPS/10G Variable DPI 200–4,200 DPI 1000 Hz Huano 10,000,000 Clicks Polling Rate RGB Lifetime 16.8 Million Color Options That Can Be Customized Six Buttons That Can Be Programmed Separately Nylon Braided USB Cable, 1.8m Dimensions: 129 x 68 x 41 mm