Kensington Orbit Trackball Mouse with Scroll Ring (K72337US), 4 1/2X5 1/2X2"

I love this Kensington Trackball. Try working on your laptop seated in your favorite recliner using your mouse on the arm of the recliner. Not too easy. With the trackball, the base stays in one spot and the intricate rotation of the ball guided by your finger moves the pointer. This trackball goes with my laptop. I have a second for my desktop too. Wherever you want to work - the back of a car, seated in an airliner, etc. - this trackball will work. It does not require batteries. Well built, reasonably portable, plug-and-play connectivity, it does what I need it to, where I need it and when.I use it mostly for photo and video editing. It's up to the task, especially the detail work. I highly recommend it!

Love it takes a lot of getting use to but at least you don’t have to slide a mouse all over the place. The ball can sometimes be irritating but I wouldn’t go back to the normal mouse

I had to get something easier on my neck, shoulder and wrist and this does the trick - it's very comfortable to use with vertical-enough hand posture. This stopped my pain much more effectively than a vertical mouse. Because it's ambidextrous, it's the best replacement I could find for my old apple mouse. I'm not happy about losing horizontal scrolling, and I used the hot corners Mac feature to replace the squeeze function on my old mouse. Came with a wrist rest which does help with ergonomics.

I've had the trackball for about a month now. I bought it to replace the wireless Mighty Mouse that came with my Mac 'cause it ate batteries like no tomorrow. VERY, VERY pleased with the trackball. It took me about a week to figure out how to comfortably use it as I had exclusively using a Wacom tablet in place of the mouse, before deciding to get some sort of mouse.The software: To start off, for those reading reviews of those complaining about the program, you CAN plug and play it. You don't actually need the program for the trackball to work. The mouse adjustments that you can make in the System Preferences will still work for the trackball. However, in order to access the additional features, you will need to download the software. It's a very easy process, just go to the website, download and install it (the instructions come in the packet). The icon will show up in your System Preferences window under the Other header. I don't know where it appears for Windows as I've only transferred the trackball between our Macs. In the trackball program, you can adjust the usual features (scroll speed, click speed, etc) and also the left/right combo click which you can set to do stuff like go back or forward. The program also allows you to choose which direction to have the scroll ring turn to go up or down. The default is set to clockwise for scrolling down.The buttons: overall, they're pretty standard in function. However, I do find that sometimes in certain programs like a Flash game, it won't always want to click on the first try, so I wouldn't recommend this for gaming purposes for games where you do need an immediate response. All other uses, I haven't really noticed any problems. I love the option of being able to set the dual click to do something :) As a first time trackball user, something else I also had to remember to do was take my fingers off the ball before clicking as I often catch myself nudging the ball when I click and then missing the spot I wanted to click. Same goes for the scroll wheel. I seem to subconsciously fiddle with that too.Trackball: No issues with it at all. It took some getting used to with adjusting from a mouse or my tablet and I found myself trying to click on the ball itself a number of times. *lol* But no fault of the device.The scroll ring: So far, I haven't experienced any of the major problems that have been complained about so far. Up till about a week ago, I hadn't gotten around to looking into the trackball's software and once I did, it made a huge world of difference with how smoothly the ring scrolled. It felt a little slow, previously to the point where it sort of staggered sometimes. I love how I can now just give the ring a quick flick with a finger and I'll be back at the top of a web page. I've actually caught myself trying to do that with a scroll wheel on a mouse at work and wondering why it just inched up instead of flying up where I wanted it! Keeping in mind of the complaints though, I have been careful with the wheel and trying not to use it when I don't feel I really need to, as not to potentially abuse it to death as I really like it. So if I'm scrolling to skim an article or search it for something, I'll use the scroll bar on the browser, which with the trackball is pretty effortless.Extras: It includes a wrist rest that you can attach to the end of the base. I didn't bother with it as my desk has a built in one.Size of whole unit: it's a decent size for me. My hand length is about 7 inches and the size of the unit allows me to perch my fingertips on the ball and comfortably roll forward to the middle joint of my fingers if I want to do one long continuous drag. I've play tested some older trackballs in stores many years ago when the majority seemed to be a lot larger, so this works fairly well.Advice: if you find yourself needing to clean your trackball, don't use Clorox wipes. It leaves a sticky residues that slows down the ball's spin. I just pulled out the ball and washed it with hand soap and water, wiped out the dust in the holder, dried off everything and stuck it back in.User troubleshooting: If you find that your hand is more tired using the trackball than a regular mouse, try adjusting your chair height. This can make a very big difference. If you have an arm rest on your chair, take advantage of it and adjust your chair height to make the rest level with your trackball.

I love the Kensington Orbit Trackball Mouse! It’s super comfortable and reduces wrist strain, perfect for long hours of work. The scroll ring makes browsing easy, and the customizable buttons are a nice touch. It took me a few days to get used to the trackball, but now I can't imagine going back to a regular mouse. Highly recommend for anyone looking for ergonomic comfort!

The trackball itself is fine. It rolls, it clicks, it does what a trackball should. But God help you if you need support.The box includes a helpful-looking card pointing you to www.kensington.com/manuals — a dead link, like the ghost of customer service past. Go to the site manually, and you're shunted into a beta support system that appears to be allergic to actually supporting anything.The chatbot is a marvel of modern tech — if the goal was to simulate a lobotomized parrot. No matter what you ask, it cheerfully misunderstands and unhelpfully replies.After some digging, I managed to find and install the right driver. No thanks to Kensington. No manual, no guidance, no human. If you're the kind of person who builds furniture without instructions and enjoys yelling at your screen, you'll be fine. Everyone else: bring a flashlight and a map.

No complains. It would be great if when pressing the trackball it would work like pressing the mouse wheel. That would be a good feature. But it's just a suggestion.