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Logitech's MX Ergo S, though, upends those assumptions. Combining a refined ergonomic design, quiet operation, and ...

Logitech Ergo M575 Logitech mx Vertical 0:00 Intro 0:44 Preview 0:58 A bit different, and my qualifications 1:40 What's in ...

Logitech just unleashed a new entry-level wireless trackball that feels good, looks fine and works wonderfully. The new Ergo M575 adds some features previously found only in its high-end MX Ergo ...

Trackballs are an acquired taste. Some look on them as oddities, but here's a confession: I've been using a trackball for well over a decade and find the arrangement comfortable and easy to work with.

Executive Editor David Carnoy has been a leading member of CNET's Reviews team since 2000. He covers the gamut of gadgets and is a notable reviewer of mobile accessories and portable audio products, ...