Interference free 2. 4 GHz technology with a range of approx. 5 m Infrared sensor for precise movement of the mouse pointer On/off 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.