Wireless Mouse, Green/Black. USB, Three Buttons with Scroll Wheel, 1000 dpi. Precision optical performance in an agile, modern design with USB micro receiver. 2.4GHz RF technology offers wireless freedom with effective range up to 10 m (33 ft.). Auto power management helps maintain proper battery levels. Ergonomic shape and no-slip texture provide secure grip. Low-friction base smoothly glides over work surfaces. Plug-and-play installation-Windows and Mac compatible. Three-Year Warranty.