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, ...