The mouse features a rechargeable battery that has an insane life! Expect up to 70 days of battery life on just one single charge which is great for those who will take the mouse to work, school, or travel with it, and running out of battery will be the last thing on your mind! It takes AA batteries too, which are widely available and affordable to replace.

Insert the AA battery in the Fusion Orbit, insert the USB 2.4GHz nano receiver in your computer, with or without the USB-A adapter, and turn on the Fusion Orbit with the button at the bottom. Four DPI settings let you easily adjust the cursor speed to fit your needs by selecting the appropriate level (400, 800, 1,200 or 1,600) - lower DPI for precision editing, and higher DPI for word processing or casual browsing. Wireless connection from a 2.4GHz nano receiver with a USB-A to USB-C adapter included making it perfect for any type of PC or device with a specific port configuration.While the mouse is fantastic for gaming, it has limited compatibility. You will need Windows 7, 8.1, RT8.1, and ten or later. It is worth noting that the horizontal scrolling function will not work with Windows RT8.1.In terms of Mac, OS 10.13 or later will be required for the mouse to work. While this is not as much compatibility as other mice on the list, there is still a good range that most gamers will be using. The ring is quite big and high, and on an angle. I’m a big fan of a scroll ring compared to the small scroll wheels, so I’m very happy with this feature and it doesn’t disappoint. It feels smooth and is very easy to move with the ring finger. The size and shape is comparable to the latest popular Elecom models, especially the DEFT PRO. Slightly bigger than a computer mouse, but much smaller than the large Kensington Expert or SlimBlade, CST or Elecom HUGE. Holding the Orbit Fusion, it feels nice and solid. Nothing too spectacular, but it’s well made, nice matte plastic, with some sharper edges and smooth palm shape. Easily adjust the cursor speed to fit your needs by selecting the appropriate DPI level (400/400-800/800-1500)–lower DPI for precision editing and higher DPI for word processing or casual browsing.

However, they tend to be suited for right-handed users. Left-handed ones are available, but they can be harder to find! Underneath it has great anti-slip rubber strips, a hole to punch out the ball, the battery compartment, ON/OFF button and a place to store the USB 2.4GHz nano receiver when you’re traveling. If you have large hands, and are willing to spend a more, I would look at the Kensington Expert / Kensington Expert Wireless (a classic), or the CST (my current personal favorite, but expensive and not many buttons).

All-day comfort is provided through a sculpted mouse-like design to improve palm, wrist, forearm and shoulder position with less hand movement That alone is enough to make it worth buying because, like its wired sibling, it's extremely comfortable to use, good value and the scroll ring is a thing of genius.

I prefer the bigger devices as I have large hands. I can work with this Orbit Fusion quite well, although I do find it easier to move the ball with the middle of my fingers, not my finger tips. Kensington feels the heat from the popular Elecom DEFT PRO and has released this Orbit Fusion as a response. Kensington has deployed their (not so) secret weapon, the large scroll wheel around the ball. This feature alone makes the Kensington Orbit Fusion the winner between the two for me. But the Elecom DEFT Pro has 3 (!) connection modes (wired, Bluetooth or wireless 2.4GHz USB dongle) while this Orbit Fusion is USB-dongle-wireless only. The Elecom also has more buttons. So it all depends what you are looking for. But for most users I would say the Orbit Fusion is enough and the scroll wheel is the major benefit. The only thing I really don't like about the Orbit Wireless is the same thing I don't like on the regular Orbit. The included wrist rest is a nice touch and it's useful, but it's also not very good. Personally, I prefer not using it anyway, as the position of my hand feels better, but the point is more that it's just not very good. It sort of clips to the lower portion of the Orbit Wireless except it doesn't really. It’s more than likely that you have a personal preference when choosing an input device for your computer. These habits form over years of use and once you are comfortable, very little will sway you to try a new product. For decades, the humble mouse and keyboard seemed to reign supreme, with little changes to the designs since the first models. The size of the ball is 40mm, a good, medium sized ball. I’m happy it’s not smaller. For me, it could even have been a bit bigger like the 44mm Elecom DEFT PRO ball, but it’s not a dealbreaker.All-day comfort is provided through a sculpted mouse-like design to improve palm, wrist, forearm and shoulder position with less hand movement. The unique finger-operated scroll ring provides a more precise, intuitive and comfortable scrolling experience. Four DPI settings let you easily adjust the cursor speed to fit your needs by selecting the appropriate level (400, 800, 1,200, or 1,600) — lower DPI for precision editing, and higher DPI for word processing or casual browsing.