Making your
computing experience smoother, faster and easier, this
trackball puts complete control of multiple computer
functions at your fingertips. Features three modes, so you
can scroll, adjust volume and zoom in or out, with just the
multifunction ball. Its low-profile shape makes it
comfortable to use for hours on end. Sleek stationary design
saves desk space. Customize buttons with TrackballWorks™
software. Manufacturer's limited five-year warranty