* It's wired, not wireless. Wired rodents are more reliable.
* The ball is acceptably large and reasonably precise.
* The buttons are responsive... so far
* The ball is finger-operated."... (read full reviews)
"I was nervous about moving from a normal mouse to a trackball because I wasn't sure I would like using it (especially for FPS gaming). However, I needed a wireless option for my computer setup since I"... (read full reviews)