Amazon.com: KKUOD 2.4G+Dual Bluetooth Wireless Trackball Mouse, 3-Device Connection Ergonomic Mouse, Rechargeable Ergo Mouse with USB-C Port and 3 DPI, Thumb-Operated Mouse for PC Computer Laptop Tablet : Electronics
Trackball - Wikipedia
ProtoArc® EM03 Ergonomic Wireless Bluetooth RGB Trackball Mouse