Curve Wireless Optical Mouse. 2.4GHz RF technology offers wireless freedom with effective range up to 10m (33 ft.). Auto power management helps maintain battery levels. On-board storage compartment protects USB receiver from loss and damage. Top-mount push-button control instantly shifts resolution from 800, 1200 and 1600 dpi. Plug-and-play installation; Windows and Mac compatible. Three-Year Warranty .