Interference free 24 ghz technology with a range of approx 5 m infrared sensor for precise movement of the mouse pointer onoff button for additional energy savings nano usb receiver leave in laptop or store in mouse 1000 1750 dpi adjustable non slip rubber sides ergonomic design for right handed operation the cherry mw 3000 is cutting edge cherry technology in an ergonomic modern design it is an attractive practical and high quality mouse from cherry