Compact size 6 button mouse with 1000 dpi high precision BlueSpot technology. Accurate and high precision BlueSpot sensor that works on virtually all surfaces like wood, granite, carpet, black, white etc.. Special button to switch sensitivity for normal (500 dpi) and high speed (1000 dpi) movement. Ergonomic design with rubber coated edges for a firm grip. Side buttons for easy web exploring (page back/forward). Compact design takes up limited space in notebook bags. Just plug-in and start: no driver needed.