https://www.kensington.com/p/products/electronic-control-solutions/trackball-products/expert-mouse-wireless-trackball-1/?r=1
Expert Mouse® Wireless Trackball | Trackballs | Trackball Mouse | Kensington
Wireless freedom allows you to connect by a 2.4GHz USB nano receiver..
trackball trackballs mouse
https://www.kensington.com/p/products/electronic-control-solutions/trackball-products/slimblade-pro-trackball/
SlimBlade™ Pro Trackball | Trackballs | Trackball Mouse | Kensington
trackball trackballs mousepro