Simple USB hand-held Mini trackball Speed control
MINI HAND-HELD TRACKBALL SPEED CONTROL
The A-1646 Simple Hand-held Mini-Trackball speed controller for use with Listec A-6000WIN InstantEdit Prompter Program.
Part No. A-1646 is an unobtrusive USB Hand-held Mini-Trackball that can be employed with the Listec A-6000WIN InstantEdit Prompter Program to manage speed and pause functions. Fits in the palm of one's hand. It may also be used as a standard Windows mouse device.