Sensitive, soft, silent, smooth, stylish and slim...all words that define the Macally DYNAMOUSE USB optical silent mouse for Mac and PC. This mouse has a DPI button that allows you to switch between a sensor resolution of 800,1200 and 1600 DPI so you can set the tracking speed and precision to your preference. The soft-click buttons are sensitive and extremely silent so you can do your job without distraction. The scrollwheel has a double function as it allows you to scroll smoothly through web pages/documents and acts as a third button. The 150 cm (5´) long cable allows you to connect the mouse to your Mac or PC (Plug and Play, no driver required), even when it's under your desk. The Macally DYNAMOUSE has a stylish, matte finish and ambidextrous design that offers maximum comfort to both left-handed and right-handed users and helps to increase your productivity.