KensingtonSlimBlade™ Pro Wireless Trackball, Rechargeable Battery, Bluetooth 2.4GHz Connection Options (K72080WW)

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 have RSI. I've been using trackballs for a few years now, and now that I have this one, I think I'm done experimenting. This is it.It's ridiculously comfortable. Scrolling, while a learning experience, is pretty easy to do once you try it. You drag your finger along the side of the ball, scrolling up or down as you do. You can also twist the ball, but both work, and I find the former method way more comfortable.The trackball is big enough to be easily controlled. I have tiny hands (I wear a women's small in gloves), but I feel completely comfortable using the SlimBlade Pro despite it being bigger than many trackballs. The build quality is ridiculously solid, with the buttons feeling very nice to hit and the trackball moving very smoothly.All connectivity options work like magic. Bluetooth works great with my iPads. The dongle and directly wired, of course, work amazingly as well. I don't feel any stuttering or input lag using this trackball for hours at a time for work or gaming. The DPI toggle is very convenient, although I generally only use the two lowest settings.The preset buttons are the only thing I might change. Left and right click are the left and right bottom buttons respectively. The top left is a middle mouse button click, which is very useful for my workflow and for a lot of games. The top right, however, is a back button, which I keep hitting on accident! It can be changed, though, and I'm sure I'll get used to it with time if I don't.Overall, I love this trackball. If I lose it, I'll get another. If it breaks, I'll get another. This is it for me.

I have used Kensington trackballs for decades. This one is definitely a step up. Lower profile. Smoother action. Overall, very nice. The only criticism is that, when the glides get dirty it can get squeaky. Not loud, but enough to notice. Cleaning the ball and carrier resolves this. Occasionally wiping the ball on your face also help. It puts the tiniest amount of oils on the ball which also eliminates any squeaking.There is no scroll ring. Instead, you rotate the ball by placing a finger on the side of the ball. It sounds strange, but it actually works quite will and is intuitive if you have used an older ball.Overall, a solid improvement from the traditional Kensington design.

In a world dominated by standard mice, the Kensington Trackball Mouse offers a refreshing — and highly functional — alternative. Designed for users seeking precision, comfort, and space efficiency, Kensington’s line of trackball mice (particularly the Expert Mouse and SlimBlade models) has earned a strong reputation among graphic designers, video editors, accessibility users, and anyone looking to reduce wrist strain. After several weeks of use, I can confidently say this mouse is more than a niche tool — it’s a productivity powerhouse.Ergonomic Design & ComfortThe most immediate difference is how you interact with the device. Unlike a traditional mouse, the Kensington trackball stays stationary. You control the cursor by rolling the ball with your fingers or palm. This design is a huge win for ergonomics — it eliminates constant wrist and arm movement, reducing the risk of repetitive strain injuries (RSIs), especially during long work sessions.The included wrist rest (on models like the Expert Mouse) adds another layer of comfort. It’s soft, detachable, and encourages a neutral hand posture. Over extended use, I noticed significantly less tension in my forearm and shoulder compared to using a regular mouse.Precision & ControlThe large, smooth-rolling ball is surprisingly accurate. Once you get used to the motion (which takes about a day or two), fine control becomes second nature. Whether you’re navigating through spreadsheets, editing photos, or simply browsing the web, the trackball allows for quick, pixel-level precision — especially useful for design work.Customizability is another standout. The KensingtonWorks software lets you program each of the buttons (typically four on the Expert Mouse) to suit your workflow — from copy/paste shortcuts to opening apps or executing macros. Scroll ring functionality is also intuitive and surprisingly satisfying. Rotating the ring around the ball allows for fluid, smooth scrolling that quickly becomes second nature.Build Quality & DurabilityKensington devices are built like tanks. The materials feel premium, with a sturdy plastic body, high-quality ball bearings, and tactile buttons that hold up well under daily use. Unlike many traditional mice that begin to degrade after a year or two, a Kensington trackball can last years with minimal maintenance — just an occasional cleaning of the ball and socket.Learning CurveThere is a brief adjustment period if you’ve never used a trackball before. It may feel awkward initially, but within a few days, most users adapt quickly. The payoff is worth it — less movement, better posture, and surprisingly faster navigation once you’re accustomed to the motion.Final ThoughtsThe Kensington Trackball Mouse isn’t just an alternative pointing device — it’s a serious upgrade in terms of comfort, control, and customization. Whether you're managing multi-monitor setups, working long hours at a desk, or dealing with wrist issues, this mouse delivers reliable performance with thoughtful design.Rating: 5/5 – Ergonomic, precise, and built to last. An excellent investment for professionals and power users alike.