Kensington Orbit® Fusion™ Wireless Trackball (K72363WW), Black

Recently started to using a trackball mouse (about a year plus) and loved it (most of its benefits such less unnecessary hand movement, small foot print, and most of all ambidextrous application. Due to heavy spread sheet works, I still use the good old conventional mouse for quick cell selections, switching tabs, and other boring work related stuffs thanks to strange muscle/brain memories, which I can't easily change. Working from home changed everything - I have a freedom to update my work environment for better productivity as well as ergonomically sound work condition (well, at my own expense). My original "Orbit" is great - no fancy frills, just down to key trackball features plus ambidextrous design (born as righty and trained as lefty). However, I really missed "forward/back buttons" from conventional mouses I have (silly demand). Then I found this "Orbit Fusion". It is literally the device which was developed to satisfy my silly demand (well, not perfectly, I will cover two tiny disappointments later).1. It has a scroll ring like the original Orbit. If you like your original orbit trackball mouse, you are going to love the same feature in Orbit Fusion. I wish it would have inherited trackball scroll feature from SlimBlade - maybe this is for the next version? Scroll ring is still rough, which might need some break in time (not smooth as scroll ring from the original Orbit).2. Forward/Back buttons - these were the missing things I have been complaining for the Orbit. With these, I don't need to touch a keyboard or click a back button on the browser/folder. Fair warning: different design means learning curve - all mouses have different button layouts; it will take some time to settle in (no sweat). I need to practice really hard since I am using three different input devices at the same time... All ten fingers will be very busy to catch up these tricks (especially, pinky)...3. Size - I don't have a gigantic size hand nor a really small hand, but relatively a big hand. This fits under my palm without pushing me too much. I like the low profile design of the Orbit more, but it would be okay with these extra features. Little taller/thicker, but same footprint compared to Logitech MX Master.4. Wireless Connection - I actually prefer a wired input device (just me with wierd interests thanks to bad experience with wireless connection devices). Sorry this does not support bluetooth connection. However, it is wirelessly connected with a provided dongle, which connection was just a plug-and-play. It even supplies a USB-C adapter for newer devices.4. Extras: "Battery" is included. I repeat. "Battery" is included. I haven't seen this in years. Not super fancy type, will do the work. Thanks, Kensington!!! There is no port to connect into the computer as a wired input device nor to recharge. Will test its battery longevity (TBD).5. Trackball - precise, balanced, weighted. I expected a bigger size, but it seems very same compared to its cousin "Orbit". Try to utilize a track ball while working in Excel or any spread sheet application, but very challenging due to pre-existing muscle/brain memories... If anybody has any suggestion to maximize track ball usage in spread sheet works, please share your knowledge, grand trackball master...6. Wishlist- Fusion is for right hand users only. I tried my left hand, but I can use it same as the original Orbit with one less button. Well, this is my personal wishlist for the perfect input device. It's not a deal breaker at all.Overall, I am very happy to add this to my home office crew.Stay safe and positive. Happy Rolling!!!

Overall a good trackball for traveling, but there area few areas that need improvement.The Good: Very comfortable hand positioning, I have smaller hands and I find it fits naturally. I like the placement of the buttons, and I think this has more buttons than any other Kensington, which I also really like. It is a great size for traveling. When I am on the road I bring this along and use it whenever I sit down for more than just a few minutes with my laptop.The Bad: The scroll wheel, it is in an inovative position, which I like, but it feels loose, and cheap. I really wish they had invested in better and more precise bearings so it would be more comfortable. And second, and obviously this is more of an annoyance, the primary button has a double click sound and feel even when you only click it once. So you depress the button and you here and feel two clicks, but the mouse only registers one click. You get used to it, but I don't like it. For what is a travel trackball at heart, I REALLY wish it had bluetooth. Having to deal with the dongal is just a PIA.

I like a lot of things about this cordless trackball. First of all, that it's cordless. Second of all is the scrolling action - I really like that ring around the ball to use for scrolling - I love it. The position of the left and right buttons are in the right place as in most trackballs. The picture of the trackballs shape looked rather strange to me but once I put the palm of my hand on the trackball I found that whoever designed the trackball knew what they were doing. The little area on the left side to support my thumb is perfect and feels great. The whole thing is a marvel and I'm very happy I purchased it and it is much more affordable than many other cordless track balls. I've been using trackballs ever since they were invented and I prefer using my finger and sometimes my first two fingers to control the action of the ball. My son prefers to use his thumb to control his trackball so I'm glad that there is a variety of trackballs. Sadly this one is not reversible for left and right handed persons. I'm sure that if this trackball was made for left handed persons they would love this trackball too. I read in the instructions the purpose of those other buttons on the trackball, I set up the dpi and it is still in the same position that I left it in. I don't really understand how dpi fits into this trackball but it's working great for me and I'm not going to fool around with it. That's all, I'm done.