Desktop laser mouse is designed for both right-handed and left-handed users. Laser-based positioning technology delivers precision performance. Customize the speed of your cursor to match your needs. Mouse features tilt wheel for smooth four-way scrolling across your screen, three speed settings with up to 1600 dpi sensitivity, two programmable buttons, contoured shape and USB connectivity (2.0 or 1.1). Mouse is compatible with Windows XP, 2000, Vista, and Mac OS 10.4.X and higher.