The
MiniPro Mouse is a small (3.5" long, 1" height and 1 7/8" width) optical mouse (no ball) that connects to any Mac with a USB port. Because of its small size many users will want to carry it with them on the road with a portable. The mouse has two buttons. The second is behind the main button, and its top is rounded and higher to avoid confusion between the buttons
Check It Out: MiniPro Mouse, An Optical Mouse To Go