Accustomed always the good old mouse, when I started using this tracball for 14 months
Technical:
<ul>
Trackball
Cbl - PS / 2, USB
Motion-detection technology Optical
Buttons Qty 5
Wheel dfile
Required operating system Microsoft Windows 95/98, Microsoft Windows NT 4.0 SP3 or latest issue, Apple MacOS 8.5.1 or latest issue </ul>

Thanks its innovative design and ergonomic shape the Trackball Explorer will meet you thanks its 5 buttons and wide ball that fits easily under your index or middle finger. innovative design and optical technology you work faster and more efficiently.

Of course, it takes a little getting used to but it really does. Once the object is adompt I can say that it's really gnial, no need to make room for the mouse "hand & wrist pain."