Logitech TrackMan Live 904324-0403 Cordless Mouse Model: 4324 | eBay
Amazon.com: Logitech MX Ergo Wireless Trackball Mouse Adjustable Ergonomic Design, Control and Move Text/Images/Files Between 2 Windows and Apple Mac Computers (Bluetooth or USB), Rechargeable, Graphite - Black : Electronics
Logitech MX ERGO Advanced Wireless Trackball Mouse
Logitech MX Ergo Review: A Worthy Heir to Logitech's Lengthy Trackball Mouse Lineage – Review Geek