Trackball is an excellent keyword to search for on Google, Logitech makes several.
Though I have not used one extensively enough to have an input on how ergonomic it is, I have found that they are excellent for surfaces which regular mice have trouble tracking on.
Trackball is an excellent keyword to search for on Google, Logitech makes several.
Though I have not used one extensively enough to have an input on how ergonomic it is, I have found that they are excellent for surfaces which regular mice have trouble tracking on.