Multi-mode Wireless Optical Mouse • Connect via Bluetooth 4.0, 5.0 and 2.4GHz • Symmetrical design with stylish aluminum alloy cover • Intelligently switch between 2 devices • 5 levels 800-2400 DPI adjustable sensor, switch with one click • PAW3220 optical sensor: precision on nearly every surface • Silent click • Up to 12 months battery life