Small wireless mouse: Thanks to its space-saving, symmetrical shape, the MW 2200 can be used with both hands and is ideal for mobile working (incl. carrying case) Compact, ergonomic design: Adapted to the natural curvature of the hand for more comfort. The chrome-plated scroll wheel with non-slip rubber coating gives the notebook mouse an elegant touch Wireless connection via 2.4 GHz radio: Simply place the nano USB receiver in the USB port of your end device. The dongle fits inside the wireless mouse during transportation 3-button mouse with optical sensor: The resolution of 1,300 dpi ensures precise navigation and smooth cursor control on almost any surface - for more flexibility Automatic energy-saving mode: Ensures a particularly long battery life of up to 12 months with a single AA battery (included)