Multi Button Trackball Mouse

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.

This product -- especially when combined with a split ergonomic keyboard -- helps to reduce stress on your wrists. Clutching the mouse puts a lot of stress on the muscles in your forearm. But you roll this big trackball with your open hand. Instead of clutching the mouse button, you can simply tap one of the big programmable buttons with your thumb, and the mouse locks and drags until you tap the button again, when it releases. The scroll wheel is terrific. It seems like an afterthought but I use it all the time. I like this product so much, I bought one for my business partner for Christmas. Just like the split keyboard, people who sit down at my computer and use the trackball for the first time hate it. But if they use it for more than one full day, they end up loving it.

Compared to the mouse, this trackball takes some getting used to, though I'm finding the scroll ring, ball and left button intuitive, and will learn to use the right button with time. I am glad that I also ordered the mouse pad with gel wrist rest; much more comfortable than the extended tailpiece.

This is my second 4-Button USB Expert Pro Mouse - Trackball. I still use my first one and bought this one for my media manager. It eases here Carpel Tunnel Syndrome and makes her more productive. The set up is easy. The controls are easy. The ball must be cleaned on occasion and the dust must be cleaned from the ball receptacle.

Have used the expert mouse since it was a two button trackball in the late 90s. this product has always been very good at allowing fine movements on screen. the only problems even encountered was the failure of the left button switch on my original mouse. also dust would enter the cavity and cause erratic behavior of the mouse. this problem has been eliminated with the use of the optical tracking system.

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.