The Logitech Wireless Trackball M570 Mouse is a good choice for tight workspaces as it does not move. It has an amazing shape that provides comfort to your palm and wrist. This wireless mouse offers fast data transfer. For optimal use, you can adjust the cursor to the desired speed. Scroll through lengthy documents with the scroll wheel. Work faster by programming your trackball's buttons. In addition, it has an 18-month battery life.