Ambidextrous Trackball Mouse

I needed a basic, ambidextrous, wireless mouse to use with my Mac Mini. I tried an M525, which worked great, by was a bit too small for my large hands. Next, I tried an M510, which also worked fine and was full-size, but I couldn't use it because I mouse left-handed, and the programmable buttons are placed for use by the thumb of the righ hand, so they kept getting activated unintentionally when I tried to use it. The M310 finally solved the problem. It worked immediately out of the box, is full-size, and is fine for either left- or right-handed mousing. Plus it's cheaper. What's not to like?

I have been using a trackball for more at least fifteen years (my preference). The 4-button USB Expert Pro Mouse - Trackball by Kensington is there best trackball yet.

I'm at the computer 12 hours/day and I find a trackball much better than a mouse for my hand, wrist, elbow and shoulder. My Logitech Trackball developed floating cursor and I couldn't cure it. I looked at lots of recommendations from friends and relatives, but no one mentioned the Kensington SlimBlade Trackball. I found it on my own, and it is perfect for me. The large ball makes for easy cursor precision. Its simple clean design is very appealing to me. It's the easiest least stressful pointing device I've ever used. (I started out with a CPM machine so some of you will have an idea of how many pointing devices I may have used over the years.)

My 2nd Orbit Trackball. The first lasted MANY MANY years. Made the mistake of buying a cheaper Logitech trackball, that barely lasted ONE year. I really like the big buttons on the Orbit Trackball, & the velocity response (can move cursor both in very small increments, or sweep across the screen quickly). Because I've had a small computer desk (30 wide) for 35yrs, a trackball is necessary. My extended keyboard & trackball fit nicely. A mouse not only requires MUCH more space, I HATE constantly picking up & relocating a mouse to move around the 21 monitor: a waste of time, distracting & frustrating. I never have to look to find where my trackball is! Plug & play simplicity, & easy to clean.

Works great for me. Very good trackball mouse.

Love this wireless trackball Mouse,the ball rolls so smoothly, like silk, this mouse works like a charm We love it thank you

I've used the Kensington Expert Mouse for years now and won't do without it. I recently bought a new iMac with the new Magic Mouse. I did like the scrolling ability of the Magic Mouse but after a week I broke down and bought another Kensington Expert Mouse. It has much more accuracy and stability than the Magic Mouse. Plus, the trackball is easier on my hands and wrist than a traditional mouse. I'm on the computer all day and do everything i can to make my day run smoother. Moving the cursor on the screen is much more intuitive to me with a trackball than with a mouse. The Kensington Expert Mouse does have both horizontal and vertical scrolling. While not as intuitive as the Magic Mouse, it still works.

This trackball mouse works very smoothly and can be customized for your applications and how you work.

Already, somethings I do are easier and more accurate with the pen than mouse or trackball, but still into it's learning curve.

I've been using this trackball mouse with hand pad now for a month and have had no issues. Works great.