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I have owned several, both wired and wireless, over the past nine years or so and have been well satisfied. The Logitech Trackman Wheel is an excellent pointing device. Using one's thumb to move the ball is very precise and having the pointing device stationary reduces the space needed on the desk.
After installing the software on my Mac (OS 10.4), and after spending much time with Logitech tech support, I was told that the software is not compatible with Mac OS 10. Mac users: be careful before buying this product. The device will perform basic functions only.
It's programmability allows for operational flexability; like anything else, read the manual first. This asymmetric trackball mouse is comfortable and easy to use for medium to large right-hands, sorry small-handed lefties. Great for right-hand dominant people.The deal for it wasn't too bad either.
Once you've used a trackball like this you'll never go back to a mouse. The only drawback is it is not suitable for 7% of the population (southpaws).
We have that mouse for almost 3 years now and it was starting to randomly stop working, if we unplugged it from the USB it would work for a while fine, but it was annoying to have to do that in the middle of a game. So, we found a good deal on this Logitec Track Ball mouse, and we just love it. My husband and I used a rollerball mouse several years ago and loved it.then they became hard to find in our area, so we went to a more traditional style optical mouse. Its very easy to use and we will never go back.
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