Review on 🐭 ELECOM Handheld 2.4GHz Wireless Thumb-Operated Trackball Mouse: Smooth Tracking, 10-Button Function, Precision Optical Sensor - Left/Right Handed (M-RT1DRBK) by Kevin Apriando

Bought for use with a treadmill. It works well for that, I can move my mouse at a decent pace while jogging. Without constant light pressure, the trackball is not accurate. It is not fixed in the socket and will shake the cursor if you remove and remove your thumb. You'll do this all the time unless the movement is fast since the cursor doesn't move across the screen. I'm used to it and would recommend it to those who have the patience to learn how to use it or already use a trackball. I increased pointer movement, added pointer tracks and it was very effective. The scroll wheel is very comfortable and has a nice ride. It's pretty flimsy, when I dropped it once the trackball fell out and flew across the room. The stand is junk, if it isn't perfectly aligned it will fall off.