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. The first time I bought a replacement, but when it happened again, I called Kensington to ask about this problem and alert them to the fact that there was a problem. They denied that there was a problem and told me point blank that I was the first and only one to have complained.

The unique finger-operated scroll ring provides a more precise, intuitive and comfortable scrolling experience. The unique finger-operated scroll ring provides a more precise, intuitive and comfortable scrolling experience The Kensington Orbit Fusion (left) is a direct competitor for the Elecom DEFT PRO (right), but its scroll ring sets it apart. 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.

Best Trackball Mouse in 2023

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. You can use ELECOM’s mouse weird or wirelessly. It takes 1 AA battery and has a great battery life, saving you from continually charging it and for those using it with a USB connection, there is a space within the mouse to safely store the receiver when not in use.

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. This option is also an excellent choice for both gaming and work. You can use the mouse across two computers for seamless navigation when using Logitech’s flow feature. This allows you to copy and paste images, text, and files from one screen or computer to another. New to the Orbit Wireless over the regular Orbit is an integrated DPI switch (four stages from 400-1600 DPI) on the bottom, right next to the switch to go between 2.4GHz wireless and Bluetooth. You also find the battery door underneath because the Orbit Wireless takes regular old AA batteries. I don't mind this, though some might because as a parent I have an endless supply of AAs ready to pop in at short notice. But you're not likely to be swapping them very often, anyway. The speed of the scrolling can be set in the latest Kensington Works software. Be sure to update your KensingtonWorks if you have an older version installed, so that the Orbit Fusion shows up. ButtonsEasily 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. A detachable wrist rest delivers soft cushioning to support the hand and wrist in ergonomic comfort for pain-free productivity during extended periods of activity on the computer. 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.