KensingtonOrbit Wireless Trackball with Scroll Ring, Professional Computer Mouse with Bluetooth, (2.4GHz Wireless), Optical Tracking & AES Encryption Security, Left or Right Handed - Black (K70992WW)

Delighted with this mouse - and I considered many. Easy to use, connects instantly, very responsive and a good size for my mans hands. Rechargable battery lasts forever!

Very good spec; adjustable tracking ball speed, programmable keys etc. Robust and comfortable to use. Battery life between charges very good and works straight out of the box.Ergonomics are good too, with an intuitive design.

got this after my wrist got worse even after a few years on a vertical mouse, and whilst it took a bit of getting used to I quite like it. few things that irk me, unlessyoure religious about cleaning it, it gunks up super quick and the friction/stiction gets real bad, making small precise movements really damn hard.the other one however is more annoying, a little under 2 years post purchase the right mouse button has gone on the fritz often requiring 5+ click to get it to register, I can fix it with some new switches on the way, but not something I expected after a relatively short life from a company as big as kensingtom

Surprisingly good. After reading the reviews, I have to admit I was a bit unsure about this purchase. I have and use an expensive thumb based trackball which is very good, but the rubberised coating is beginning to deteriorate.I wanted to try a finger based trackball and decided to give this a go. I work nine hour days on average from home and have used it solidly now for about two working weeks. The thumball has been relegated to the shelf at the minute. I absolutely love the feel of this thing. It took a few days to get the muscle memory for thumb and ring finger clicking. After that it has been plain sailing.Pluses:*Super smooth trackball feels great.*Scroll ring is great (scratchy feel at first though, but has smoothed out a bit now)*excellent ergonomics, no tired aching joints or wrists.*very configurable via software.*AA battery lasts a long time, apparently.*easy to configure keyboard keypress to invoke/disengage high precision mode. (Super useful for detail work)Minuses:*No Bluetooth or wired connection.*not found equivalent for left-right scroll wheel click.*cannot seem to find an equivalent for logitechs gesture mode.*no proper manual for how to configure or use kensington software.All in all, the ergonomics and sheer pleasure of using this device has probably converted me to fingerball type devices. This has surprised me because I was fairly certain thumballs were going to remain my weapon of choice so-to-speak.Although I do still love and will still use my mx-ergo it will just not be as my daily driver. There are things I would like to see on the next version of the orbit fusion, highlighted in the 'minus' section above. It's a pity that a product such as this couldn't have Bluetooth and also a wired option, like it's main competitors. However, it's ergonomics, just about make up for that minor irritation for now.I also use a number of (usually about seven) virtual desktops on my work pc, on the scroll-wheel of the thumball, I'd configured left and right tilt to shift between screens. The orbit fusion doesn't have this function so for now I've reconfigured the forward and backward buttons for that purpose but it's not ideal. However, on the logitech you can configure a gesture key and swipe the ball left and right if you don't want to use the tilting scroll wheel. I cannot find an equivalent method on the orbit fusion. If it's there I haven't figured it out yet. Still searching a solution for that one. Not a showstopper though, just a nice to have, first world issue, lol.Obviously, I canot speak to it's robustness or reliability over such a short time. However it seems we'll made, it's very comfortable, isn't covered in that stupid rubbery goo like coating manufacturers are so fond of nowadays and it just works.A note on the wireless dongle. I read a review here that suggested it wasn't useful for extended periods of use due to overheating or something like and others that bemoan its reliability at a distance.I've plugged the dongle into a USB port on the front of my kvm and use the trackball seamlessly on two pc's and a macbook air. It's plugged in 24/7 and in two weeks it has been fine. No issues, except one, once. On day three, USB connectivity from the kvm to pc 1 failed upon waking the pc from sleep. Quickly switching to pc 2 and back solved it. Not sure if it was a pc issue a kvm issue or a dongle or driver issue. But it only happened the once in the first week and took five seconds to solve. It's not something that occurred before with the logitech, though.The dongle itself is plugged in fairly close i.e.: less than the width of a 34 inch monitor so I cannot say how well or not it works from a distance, but sat at a desk I cannot see it as an issue, most monitors have usb hubs and ports in them nowadays, as do some keyboards.I haven't tried it for gaming, and am not likely to. I use a console controller when gaming, so can't comment. But as a productivity tool it is very useful.Hope this review helpsUpdate 8th July 2022:A quick note to say that I'm still just as impressed and it still working flawlessly as my daily driver. Absolutely no issues whatsoever. I thought it worth updating today because it is the day 11 months in that my original battery needed replacing. To me that is excellent.Update 12 May 2024Another short update to say that this is still my daily driver. Everything is still working as if it were brand new. Absolutely no signs of use any other problems. Battery life is ablsolutely amazing, I only just replaced the battery again; I'm getting about a nine-months to a year from a single AA cell, which I think is superb. I never have any connectivity issues, it just works. Uprating to 5 stars.Update May 2025.Still my daily driver, no degradation, everything just as good as it was last year. Battery life is so impressive, I forget completely about it. Basically 1 AA battery per year. This is a true five star product.

One month review: I've been using this device for several hours each day since 19 January 2025, connected to a Chromebook via the USB wireless dongle. It's tremendous! Set up was instant - just plug and play. The Chromebook found the device and offered a range of customisation in Settings/ Device. I've configured the top two small buttons to be magnifier on/off and audio on/off. The mouse is easy to use, with smooth and responsive cursor and scroll movement. It's comfortable on hand and wrist. The only improvement I'd want is for the scroll-wheel to have a knurled texture, rather than slippy-smooth, but I'm getting used to it. Through the customisation options I've changed the track-ball and cursor movements to suit my preference for speed and precision. Very happy with this product.