

You can map the buttons as you please, but default is: There are four mouse buttons, a scroll ring, and an optional wrist rest. Some people grease the little mini-ball rollers on the inside, but I haven’t gone that far yet. It’s developing a bit of wear on the mouse button, but it still hasn’t quite broken in yet - the ball is a bit stiff to roll around, and the clicks are 10x louder than the one I keep at work. I bought a second one to keep the same type of setup at home. You can see from the photo below that the left one is fairly worn. I eventually decided enough was enough, and grabbed a donor mouse to replace the failing microswitch. It was infuriating but I adjusted my “grip” and the issue went away with a bit more force. I would drag things around but it would let go and pick up something else. Recently the unit I inherited from another person at work started giving me issues with the left-click. The trackball tends to scare people for some reason, even though it is easy to translate trackpad movements to it (larger ones like the Apple Magic Trackpad). When I’m away from work people will generally bring a regular mouse and plug it in. It has the right amount of controls, and a nice no frills design that fits right alongside my new favourite keyboard. Too often I’ll have piles of paperwork or hardware on my desk with no room for a regular mouse to move around.

It is my favourite “mousing” device since it occupies a fixed area on my desk. I’ve been using a Kesington Expert Mouse for about 6 years now and would like to share my experience with both the device and repair.
