This is the only trackball for me -- I love the configuration, which allows for my first two fingers to be used for left-click/right-click while my thumb moves the mouse. I hate the split-fingered form factor that you see on most trackballs these days (although, in defense of that config, that makes it universal so lefties can use it as well).
I looked for months to find a trackball for my husband and this one fills the bill...it is wireless! He loves it because it is great in small places. You don't have to move the item, just the trackball!
This ergonomic trackball is perfect when you don't have an area for a traditional mouse. It works in a confined area and can sit on your lap or couch and works with great precision!
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