Logitech MX Ergo Wireless Trackball Mouse, (Bluetooth or USB), Rechargeable,Color Graphite.

Customers find this trackball mouse excellent in quality and appreciate its ergonomic design that fits hands comfortably and reduces wrist strain. The mouse features a rechargeable battery that can be used while charging, and customers like its tilt angle options, particularly the 20-degree angle for wrist comfort. The Bluetooth connectivity receives mixed feedback, with some praising the connection while others report connection failures. While some customers consider it worth its price, others feel it's expensive for what it offers. The reliability aspect also gets mixed reviews, with some saying it works well while others report it stops working.