BigTrack Trackball Switch Adapted
For even more access the BIGtrack is available in a switch adapted version. The switch adapted BIGtrack comes with two standard 1/8" plugs for two switches. Its left and right mouse clicks have been adapted so that you can use a switch for activation. (Switches sold separately)
BIGtrack by Infogrip is a very big, easy-to-use trackball-style mouse. It features a 3-inch yellow ball and has two blue buttons (for left and right mouse clicks) located behind the trackball to avoid unwanted clicks.
works on any Windows or Macintosh computer that has a USB or PS/2 port
can co-exist with a conventional mouse on the same computer
Ruggedly built. Great for kids, and for adults with mobility or fine motor limitations.