Logitech M570 Wireless Trackball Mouse: Easily use your computer for long periods of time with this trackball mouse, which allows you to precisely navigate features with minimal wrist movement. Enjoy lasting comfort thanks to the sculpted shape, which supports the curves of your hand.
I'm a software developer using my mouse and keyboard every day. I tried a lot of mouse size and I always had part of my hand slipping on the desk or mouse pad and this became hurting after a long day of work. With the trackball my hand no longer moves and thus I feel no more pain at all. Regarding the mouse itself it works smoothly and after a few day I'm now as precise as I was with a regular one.
The only drawback I found is that you have to clean the inside of the ball, the small rolls, so that the ball rotates smoothly as in the old days of ball mouses; but that's not a big deal in regard to the comfort I have now.
Logitech M570 Wireless Trackball Mouse: Easily use your computer for long periods of time with this trackball mouse, which allows you to precisely navigate features with minimal wrist movement. Enjoy lasting comfort thanks to the sculpted shape, which supports the curves of your hand.
Yes it is. I first tested it on my home computer running Windows 8.1 (64 bits) and now I use it on my work computer which is running Windows 7 (64 bits too). I had nothing to install to have it work.