Logitech MX Vertical: <a href=" (Amazon) 0:00 Intro 0:44 Preview 0:58 A bit different, and my qualifications 1:40 What's in the box? 3:00 So why even consider a trackball? 4:49 Build quality and ...

This little 4-ounce optical mouse looks like nothing so much as a TV remote, but there's a bright red trackball on top. It ...