Logitech M575 Trackball
Logitech ERGO M575 Wireless Trackball. Came out in 2021-01.
- Bluetooth wireles and USB wireless.
- Requires 1 AA battery. Supposedly lasting 1 year.
Ball size: 34mm diameter.
This is updated version of M570.
But another update that's similar is MX Ergo.
If you have a question, put $5 at patreon and message me.