very comfortable on the hand can use for a long periods of time.

I had a wired logitech trackball before this one and loved it. This one was a little hard to get use to due to the thumb controlled trackball. I mounted the receiver to my laptop with velcro to keep it all mobile. One thing that you make it better is...

Great Product..[...] was double the price..Would buy from Radio Shack again.[...]

All Logitech products are quality items. Well worth the price.

This product is perfect for my arthritis!!

I bought mine 8 years ago, and it is still in like new working condition. Just like the one in the pic mine has no lights, I prefer it that way. I still prefer it over anything else. It takes a bit of practice to get used to, but once you do it's worth...

I've loved my corded mouse but didn't know there was a wireless model until I started having trouble with the connection. I'm thrilled to not have to worry about tripping over the cord and works just great. Has the roller ball, plus left and right...

It's the best mouse on the market, especially after you get used to working the ball with your thumb. Being cordless you can use it everywhere, even on the couch, where most other mice cannot work. I don't know why you can't find it in the stores. My...

I had a larger one for last 9 years, should of stuck with same brand