Logitech announced the ERGO M575 Wireless Trackball, an elegant wireless trackball mouse with easy thumb control designed to maximize comfort and save space. ... Logitech Offers New Sculpted Ergonomic M575 Wireless Trackball
What do you mean? These are basically a hybrid of normal mice and trackpads. It is a niche device but I've heard they're very comfortable to use.
Great if you do 3D modelling or use mouse more than just for gaming I used trackball for 3D modelling or CAD etc where these mouses are quite popular I never tried play games with that mouse not sure why hahaha Hope this helps Thanks, Jura
I've been gaming on these thumball mice for maybe twenty years - love it because it lets me game "on the couch" where it doesn't need a flat surface to work. In practice, it sits at the front of my armrest on my chair (with my keyboard on my lap), but same difference. This looks like a white M570? I mean, I appreciate the recycling efforts, but I'll be sticking with an MX Ergo or my Elecom unit for the extra buttons for now.
When I asked... "why"... I was referring to these mice as being the most difficult and annoying pieces of hardware to use. I absolutely hate them! And to use them with anything 3D or CAD sounds like an absolute nightmare! Yuck!