Kensington SlimBlade™ Pro Wireless Trackball, Rechargeable Battery, Bluetooth 2.4GHz Connection Options Black/Gray (K72085WW)

This is a solid well made piece of equipment. The operation of the buttons has some clanking, but I rather like that feedback. The function of the 4 buttons & button-combination is completely customizable with many options for the action that's taken. I just love the twist-&-scroll ability, where you twist the trackball & whatever page you're in slides up or down. It's so much faster & easier than shuffling over to the slide bar at the right of the page, & sliding down manually. For me, this alone was worth the purchase. After a month of using the trackball for many hours, the charge level is still at 100%. I use the trackball on a Bluetooth connection. It's fast & reliable. I am very pleased with the smooth & silent operation of this trackball. Having a large ball is really useful for me to keep control of the mouse over a very large screen. If you've only ever used a mouse, expect a period of adjustment for you to get used to the operation & feel of a trackball. But, this is the best. A little regular practice, & you'll find this fast & more accurate than anything you could have done with a mouse.

I came across the Kensington Trackball about 35 years ago and it was just a very simple plug-in device. I have not gone back to using a regular mouse, or a trackpad since I started using the Kensington Trackball. It cuts down on hand fatigue, is much more precise in its movement and I’m sure it helps to prevent future issues surrounding carpal tunnel syndrome. The Trackball remains stationary and you gand works the ball & buttons. Everything is faster & easier with the Trackball. The Trackball has two left-keys & two right-keys, which can be programmed as left-click/right-click, with the remaining keys able to be programmed to snap to websites, email, etc. This is a very versatile product and as I said, I’ll never go back to using a regular mouse or a trackpad again. They are a pain. It’s the perfect merging of a keyboard and the ability to move your cursor around your page , highlight, cut/paste, etc. with speed and precision. FIVE STARS FOR THE PAST 35-YEARS & MOVING FORWARD.

Happy with its overall feel. Ive been through 4 different high rated trackballs, this one seems to be the best choice of them all. Pros: Huge ball easy to move with 1 finger Interesting design for overall shape. I wish they would have some kind of adjustable palm options, I purchased the palm rest (sold separate), If you plan on using this in a stationary work environment. You almost need this. counts as both pro/con. - having softer corners would be welcome, it definitely stands out on your desk.. Color scheme matches my matte/black setup well. Cons: Again the shape, it has advantages and disadvantages, - Takes awhile to get used to - Im not a fan of the scrolling (move ball with middle/index) - I find the back/forward buttons awkward to use, it would make more sense to have them a bit easier to access on the sides or have the button moved down about 8-10mm. Alternatively they could add a bit of an angle to the button and it would be a tad more ergonomic - trackball is still a tad sticky, but was able to be corrected decently with the DPI. - would prefer options for flat plastic colors over the shiny car paint look, afraid it will scuff/scratch way too easy, and of course its a fingerprint magnet. Using the trackball on my Linux machine, so I have not installed the keningston software. However, I may play with it on the proxmox server running a windows machine.

Having used the traditional trackball for more decades than I can easily remember I decided to switch to the slimline version about 3 months ago. The "wheel" on the traditional always made an annoying sound and the weakest point on it. The "wheel" on the slimline is not physical but senses when your finger is close to the circular area around the ball, meaning there is no ring anymore and you simply get close to or touch where it used to be and spin the ball to get the same effect, and it works well once you realize how to control it. It is smooth and easy to use. The track ball is the same size and are interchangeable. The socks the ball its in has some nice improvements, gone are the tiny balls use to give it a smooth roll and always collected dead skin and dust and replaced with simple indents doing the same without as much collection. Then at the bottom you now have a hole where dust will fall out through. This makes it less sensitive to collecting particles and easier to clean. You have a choice to use bluetooth or USB cable. The buttons can be harder to click on since you now have to click closer to the center unless you press a lot harder than normal. Not a huge deal but a change. The only real issue I've started to run into namely battery life. The specs lists 4 months or charge, that was good until 2 weeks ago and now it drops to 25% and gives a flashing red-light to let me know the charge is low. Now I charge it once a week. Though annoying it does charge up pretty fast. For all that use this brand of track ball you know they are well made and this is no different and maybe even better. Inserting the USB C connector does require a much harder push, something probably made to ensure it does not fall out easily. And for everyone else, if you ever had an issue with your mouse, try a track ball mouse but one with a large ball. Small ones do not give the same control (more sensitive). --- UPDATE: Called support and they are shipping a new one, can't complain about that!

I've used variations of the original Kensington Smart Mouse (trackball) since the mid-90s and have been hesitant to make the change to this model because of the change in the scrolling mechanism compared to the current Expert Mouse, with a mechanical scroll ring. I did not know if I could adapt or would like the change, but I immediately found the SlimBlade intuitive, and it had even better performance than the old scroll ring. My biggest fears were dispelled. Overall, it is quite an improvement over the older Expert Mouse (trackball). This trackball can be directly connected to the computer, and the cable is a standard USB-C variety. I have two old cabled trackballs in the junk drawer due to cable shorts. I also have a couple of the older versions with the dongle that are worn out, too. I preferred the dongle version in the older Expert Mouse, but they went through batteries and did not always work correctly. I was excited to read that the SlimBlade can last months on a single charge using the dongle, so it is like the best of both worlds. The construction of the SlimBlade is a big improvement over the old Smart Mouse. It is sleek and less prone to clogging, which was a constant cat-hair problem in the past. To me, the buttons are easier to click, and it is much quieter. One of the things I notice most is that it is less bulky than my old favorite, the Kensington Smart Mouse; it is a pleasure to use.

I bought the first version of this and had issues with it (reviewed on amazon if you want to go looking). This looked like a substantial update internally keeping the great looks of the original. After using it for a few days I didn't like it as much as my Elecom Huge for a few reasons: - I couldn't find a sensitivity setting that both gave me the precision i preferred with the speed that would let me navigate my large multi-monitor setup - I couldn't find a comfortable position and my fingers were cramping - Only 4 buttons and I couldn't get the combo buttons to work properly. (I'd gotten used to 7 plus a separate wheel with the Huge). Bottom line, if you like the classic 4 button symmetrical big Kensington layout, this mouse will scratch your itch. Otherwise the Elecom Huge is more comfortable, is more precise, has more buttons, and a real scroll wheel.

As an owner of a much older, wired Kensington Slimblade trackball (the one with the little tab for magnetic attachment to the Slimblade keyboard), this is a major upgrade! I was hesitant at first, thinking "how much better can it be"? Well, I can say it is a LOT better. The trackball looks better, cleaner, and just looks more quality than the first one. No ugly tab sticking out, the trim ring around the ball is a darker color, just all around better appearance. I had the old one in the wired version, I've always been cautious about wireless peripherals, but I went ahead and tried this one in 2.4 Ghz wireless, with the provided dongle. I will say, at least in my case (24" iMac, Ventura), it has been absolutely flawless. No delay when waking from sleep, no skips, just perfect, one would not even think it is a wireless connection. I will also mention that the 4 buttons have a much better feel, and click, not so obnoxious and clunky as the original. Now for the best part. I never got used to the twist to scroll action on the old one, it seemed most of the time, it would be an annoying mix of scrolling, and moving the cursor around. I'm not sure what Kensington changed, or if there was something wrong with my old one, but this trackball is lightyears better than the old one in this regard. I use the twist to scroll all the time now, and it has become my favorite trackball, and I have a LOT of them, Kensington Expert, X-keys L-trac, and a host of Elecom, HUGE, Deft Pro, etc. I will mention that I do not use Kensington's software, but rather an excellent program for mice and trackballs called "Steermouse". It allows for much customization, and works very well with this trackball. I can say I am 100% satisfied with this purchase. Given some of the other reviews, I was hesitant. SO glad I tried this one out, despite having owned the older one. My confidence in Kensingon products has been 100% restored!

Difficult product to review. On the one hand it is new, fresh, an exciting departure from the norm, an attractive piece of tech that looks stunning and gets interest from anyone who hasn't seen it before. On the other hand it is a very flawed computer peripheral that isn't good at doing the job it is actually designed for. In summary, what could have been the best pointing device I've ever used turns out to be one of the worst. It is let down by small overlooked functionality issues, that should have been obvious during testing before releasing the product, and should easily be rectified by the devices software. Poor design choices regarding the location of settings buttons on the trackball are just that, very poor functional design. It is almost as if it is a BETA version prior to the official release. Setting up the Slimblade is easy. Plug in USB and it's detected and usable immediately, or pressing the Bluetooth button connects just as quickly. I have not tried the 2.4Ghz wireless. The trackball is usable without installing Kensington Works software but to take advantage of button programming the software is required. BTW I am using Windows 11. Buttons can be assigned different actions within Kensington Works, allowing up to 8 user programmable actions. However, this does little to alleviate the biggest issues with using this trackball especially as the software doesn't have any way of disabling, either temporarily or permanently, the twist ball scrolling system. That is just plain stupid, and I cant help thinking that no one at Kensington has even tested their own product! Twisting the ball delivers a very annoying and again totally uncontrollable artificial speaker generated click click click noise. WHY? and why can it not be turned off? On top of that the Twist to scroll cannot be disabled making the trackball useless in environments that require consistent accurate movement of the cursor. The Trackball will often interpret a diagonal slight rotation of the ball as a twist and start scrolling, totally ruining the current design being drawn on screen, for instance. When playing 1st person shooter games, again the trackball will interpret your input as a request for scroll, destroying gameplay. You are just trying to look around or navigate a character when all of sudden the view point changes or zoom changes or head up display appears, or whatever is assigned to the scroll function within the game happens. This is NOT acceptable. It renders the trackball unusable and quite frankly unfit for purpose. There should be a software switch, as Kensington have not provided a hardwired switch on the device itself, to suspend the scroll twist function in addition to turning off that incessant click click click click click etc. so the trackball is of no use in most user cases already, but it gets worse........ The buttons on the side of the unit to select DPI or pair bluetooth could not be in a more inconvenient position. Again, I believe there is no way anyone properly product tested this before release otherwise it would have been addressed. In order to pick up the large footprint trackball unit your hands/fingers grab the unit exactly where the DPI button is located. Instantly changing DPI settings or worse, messing up bluetooth connection. It is disappointing that an expensive and often assumed quality brand Kensington is happy to sell this beautiful ornament as a trackball when it clearly isn't ready for use, despite being available for years now. I cannot use this trackball, neither can my partner nor my work colleagues and all for the same reasons. It is not just me being difficult! This trackball really is a waste of money, effort, time etc. A quick bit of software development to enable useful features such as disable the DPI switch and disable the twist scroll and associated click click click click click click click would completely change this useless trackball into a very good product. WHY has it not been done? My more than 20 year old Logitech Cordless Trackman is way better than this Kensington effort. I do not recommend this Kensington Slimblade Pro at all. The only users likely to be happy with it as a pointing device are ones that are wealthy and don't mind overspending on a useless device and would very rarely use it, or have another pointing device anyway. There are more issues with the trackball but enough is enough, this is just a quick Amazon review.