OVERVIEW: The Lenovo Essential USB Mouse is more than your basic mouse. It features an easy plug-and-play connection to PCs with USB cord. The ergonomic full-size design provides comfortable grip for all day comfort. A high-resolution, 1600 dpi optical sensor ensures you’ll be smoothly gliding from window-to-window. KEY FEATURES: Full-size mouse for better grip Wired USB connection High resolution of 1600 DPI Ambidextrous design