Evoluent VerticalMouse 2. They’ve improved the original ergonomic Vertical Mouse by improving the mechanical and electrical design, upping the resolution to 1200 dpi, adding an extra button and improving the vertical grip shape. Oh and they painted it a lurid purple just to make sure you’d recognise it. Nice folks aren’t they? $75.00.
The patented shape supports your hand in a relaxed handshake position that eliminates forearm twisting. You will quickly become accustomed to the improved comfort. An ordinary horizontal mouse requires your forearm to twist away from its natural position. No Retraining Necessary The grip is the same as an ordinary mouse, just turned sideways, and the buttons are operated by the same fingers. There is virtually no retraining necessary.