Why did ball mice go obsolete? They seem superior to optical ones. a ball mice don't need a mouse pad, can work on any surface, and have good weight. Optical mice are
Amazon.com: Trackball Mouse Wireless - Ergonomic Rollerball Mouse with RGB Backlit,(2.4G USB + Bluetooth) 3 Way Connection Thumb Control Mouse Rechargeable Compatible with iPad, Mac, Windows PC, Computers - Black : Electronics
The Best Trackball Mouse - Best Trackball Mouse Options 2023
Amazon.com: Logitech M570 Wireless Trackball Mouse – Ergonomic Design with Sculpted Right-Hand Shape, Compatible with Apple Mac / Microsoft, USB Unifying Receiver, Dark Gray (Discontinued by Manufacturer) : Electronics
Delux Programmable Silent Bluetooth 5.0 2.4gHZ USB Trackball Mouse Wireless – ASA College: Florida