Customer Ratings & Reviews

I got my first Kingsington rollerball in the late 80's early 90's and have loved it ever since. There were hard to get for a while so I tried the thumb roller, fingertip roller and settled on a regular mouse. It was okay but they all make my hand tired and I get very sore. When the new rollerball popped up onsale when i was buying my new laptop I was so excited. I love having it all over again. It's so comfortable and with the ring controls for fine tuning, it really is the best, most comfortable and powerful mouse around. I'm a lifelong fan and will not be giving it up any time soon. Side note: I got my mom one of the originals in about 1992... My sister still uses it to this day! And yes I used to use my 8 ball pool ball for fun... Worked great!

I have been using the expert mouse for a very long time. (the wired version) I started using them about 15 years ago. The wired version has held up and still works to this day. I bought the wirless version just to try it out. I love it even more. Same experience with no wire with an added bonus. I run 2 computers. My windows machine and my mac. The great thing about the wireless version is it uses bluetooth and comes with a usb dongle. I use the usb reciver with my windows maching and bluetooth with my mac. I no longer need 2 mice. There is a switch on the back to switch between bluetooth and usb. Another nice surprise. When I have it set for usb it controls my pc. When I switch to bluetooth my mac. It is instant no lag or waiting for it to connect. Once you get use to using one of these a regular mouse feels inferior. Also I love being able to customize the buttons. Great product. The wirelss version is much better for me because of being able to run to computers with 1 mouse.

As a former gamer I love trackballs and Kensington makes the best of them. Large ball, scroll ring and four-button action make this the best product around.

My first encounter with a Kensington Trackball was in 1994 at a new job. I loved it immediately. No more lost cursor! No more shoving that other thing all over the desk to find it! I also love the progammable side keys. I had always longed for a right hand Tab key. Presto! This new one is wireless and easy to set up. Yes, you will need to go online to find the free downloadable driver, but that's today's world.

Best professional trackball on the market, now finally available in a wireless version. Unparalleled ergonomics, infinitely configurable 4-button control. Not cheap, but worth every penny!

This is an amazing product. I am a music Producer, recording engineer, and artist that dose a lot of editing from the home and this made the process so much better. the ability to program what each button dose gives you the ability to edit cute and past or do whatever you want to do with the press of a button if your use to a traditional mouse it may take a few days to get use to it but once you do it will be hard to go back.

This is my third purchase of this mouse. I finally upgraded to the wireless. I had an injury to my right arm years ago and had to learn to mouse left handed. I was so successful in training my left hand with this mouse, that it’s remained my preference. I switch back and forth to my right to give my left a rest on heavy workload days. Which is the beauty of this mouse and wireless makes it much easier. Each mouse has lasted for several years of daily use. Please don’t ever stop making it without letting me know so I can stock up!!

While was impressed with this item, I needed it to be portable and it was much bigger than I thought, so I did return it. But definitely eyeing as a replacement for my desktop!

Although size of mouse if very large & took a little getting used to, I really like it. It helps me being able to work without causing issues with my arthritic fingers. This was purchased for work & will purchase again. Have already been recommending it.

I've always been a fan of full sized trackballs. I had this trackball when it was a wired version. I was excited to see that Kensington finally made a wireless version. I bought it right away and have been totally happy with it!

I Love my new wireless Full sized trackball After slamming my old mouse into the table and watching the springs pop-out, when the mouse became non-responsive in a computer game game. I got my 1st Kensington Trackball. No longer move a mouse across a mouse pad, but rather use finger-tips to finely control cursor movement. with the large ball. The wireless Trackball is identical to the wired optical version, except the lack of wire and being updated for Win10. It is heavy-duty workhorse.

I use it for video editing and photo editing and for creating objects for 3d printing. I love how you can dial in the sensitivity of the trackball and how you can customize the shortcut buttons on it. It is a bit bulky, so i mainly use it at home. It does fit in my laptop bag and i have traveled with it and have had no problems.

This solves a too-little desk space problem with my work Dell laptop. It has a good solid feel to it. While I miss some of the multi-finger gestures possible with a trackpad, it's a good alternative to a mouse. Switching between a mouse and the trackball works different parts of the hand and wrist. Using it reminds me of playing Missile Command a long time ago. I'm happy with my purchase.

Very Intuitive use, honestly perplexed at ever using a regular mouse. The form factor allows you to save wrist & hand motion which is a relief during long editing sessions. Takes some getting used to if you're used to traditional computing but well worth the small learning curve. If you're working in a DAW or editing visual items i highly recommend this, your wrist will thank you.

Used by disabled individual. Perfect for her needs.

I suffer from Trigger finger as well as trigger thumb where my fingers get locked in a bent position at night. A traditional rollerball you have to use your thumb. This allows you to use your fingers in a slight motion that is comfortable.

Takes me back to 2000-2005. I used to use one of these to play old school PC games (Yuri's revenge, Gangland, C&C, etc), except they weren't old school then lol. So I recently started playing them again (15+ years later) and I was curious if anyone ever still made this mouse, and sure enough good old Kensington STILL does. I love it, sure its a bit retro, but it still seems way more usefull and effective then sliding the mouse all over the desktop and having to reposition it, if I have moved to far to the left, right, up or down... none of that is required with a trackball, it can infinitely scroll in any direction without the need to reposition it, to gain more movement in that or any other direction. If you havent tried one of these, and you like to game (maybe retro games), give this a shot! I love it, and so glad I found it was still being made!

The Expert Mouse works great. Ordered a second one for my wife. Not as much customization as the previous model, but the wireless is great and the additional customized buttons are not missed.

The answer to my pain and frustration. I should have gotten this years ago! It feels like quality and moves with complete ease and accuracy. The included wrist rest adaptor is appreciated, and the four button control allows for custom presets to automate specific functions.

Have used this product at work for over 20 years. Now retired, love using it at home.