Vertical Wrist Position

A handshake grip keeps the forearm from twisting the way a flat mouse forces.

Low Click Force Buttons

Light actuation matters when repeated pressing is what causes the pain.

Thumb-Driven Trackball

Moving a ball instead of the whole arm suits limited shoulder movement.

Alternative Input Formats

Rings, pads, and mouth-operated controls fit hands that cannot grip a shell.

Adjustable Cursor Speed

Tuning travel per movement lets a small gesture cross a large display.