Microsoft 5 Button Optical Trackball Thumb 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.

I bought this for Microsoft flight simulator 2020. I had initially got the orbit and liked the trackball concept so I ungraded to the expert. For a general mouse functions it feels more tactile then a regular mouse. You just feel like a big shot with this mouse, you’re a wonderful person and you are worth it.

I have arthritis in my thumb & this trackball/mouse is fantastic.The large ball & the scroll wheel is very accommodating & easy to use.The wrist pad that is included is comfortable & attaches to the mouse so there is no slipping away.

I have owned Logitech trackball mouses since 2000. Most I loved, a few I used but recognized some issues. In general, I consider a thumb based trackball mouse to be the best out there. It uses a thumb which can rotate in any direction and is built for fine motor skills unlike the wrist driven mice. Here's why I like this particular mouse and call it the best I've ever had: 1. Everything is well built and works without issues. The ball itself swivels easily. It's easy to clean. The buttons work. It sticks to the desk and doesn't move 2. Bluetooth is a dream. It connects easily to my Mac and stays connected. It's just rock solid in that way. 3. Battery life is long. I have usually forgotten the last time I replaced the battery by the time I swap in a new pair. I was a bit worried because I wanted to use bluetooth and Logitech warns that bluetooth connections consume more battery than their proprietary connector 4. It's easy to use Mac config to set tracking speed, scrolling speed, and double click speed. Overall, this is the best mouse I've owned.

I love this mouse. It's wireless, the trackball is located in the middle so you use your forefinger, not your thumb, to navigate, and best of all, if it's dropped or falls off the surface it's on, the trackball doesn't come out! I have spent too much time searching for stray trackballs. Buy it now!

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 use the Evoluent for my main computer. It is a large mouse and it does take some getting use to. It has three main buttons under the fingers, two buttons next to the thumb and the wheel button. All are programable with the downloadable software from the Evoluent site. The buttons are a little light but once you get used to them it works very well. I liked it so much I purchased one for my wife. Both are on computers that run Win 7 pro, no problems yet. I have been using the mice for 3 weeks.