Logitech MX ERGO Advanced Wireless Trackball Mouse
PSA for Linux users: current Solaar supports detailed settings for Logitech mice/trackballs with Unifying receiver (tested M575, MX Ergo and MX Vertical) : r/Trackballs
Logitech Unifying Receiver for Connecting Multiple Devices
Logitech MX ERGO Wireless Trackball Mouse with USB Receiver│440 DPI│8 Buttons | eBay
Logitech MX ERGO Advanced Wireless Trackball Mouse
Getting Started
Logitech MX ERGO Advanced Wireless Trackball Mouse
Logitech MX Ergo Plus Review: Best In Class - Switch and Click
Logitech MX ERGO Advanced Wireless Trackball Mouse