The Trust Mydo Wireless Mouse with advanced silent buttons, scroll wheel and optical sensor for reliable and responsive control. It has two silent main buttons, its quiet clicks ensure you will not disturb yourself or others around you. The mouse has adjustable cursor speed (1000-1800 DPI) , this mouse lets you pick the speed that is right for you. Enjoy full freedom with a wireless range of 10m. The mouse provides a comfortable fit in either hand.