After 10 years of office work and a couple of unsuccessful falls in the winter, my wrist began to hurt a lot, and many years of use of the excellent M705 mouse no longer saved me. I switched to a non-vertical mouse, it became much better. Then I decided to try the trackball. And fell in love :) My arm started to hurt a lot less, I sometimes use it with a pillow under my wrist, it's so good. I got used to it literally in a day. And the rotation of the ball is a very good anti-stress. As a result, six months later I also took the MX 575 for home and travel, which is easier due to the lack of a plate.
Graphic tablet WACOM One Small (CTL-472-N) black/red
43 Review
Smartphone Samsung Galaxy Note 10 Lite 6/128 GB, Dual nano SIM, black
121 Review
Smartphone Samsung Galaxy S21 Ultra 5G 12/256 GB RU, Dual: nano SIM eSIM, black phantom
34 Review
6" E-book Amazon Kindle PaperWhite 2018 1440x1080, E-Ink, 8 GB, standard equipment, black
37 Review