Logitech's new $50 ergonomic trackball mouse has Bluetooth LE support | Engadget
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
Logitech MX Ergo Wireless Trackball Mouse Review | PCMag
Logitech M570 Wireless Trackball Mouse Gray/Blue 910-001799 - Best Buy
Logitech ERGO M575 Wireless Trackball Mouse - Easy thumb control, precision and smooth tracking, ergonomic comfort design, for Windows, PC and Mac with Bluetooth and USB capabilities - Graphite - Newegg.com
Amazon.com: Logitech Trackman Marble Trackball – Wired USB Ergonomic Mouse for Computers, with 4 Programmable Buttons, Dark Gray : Electronics