Ergonomic Wireless Trackball Mouse, 3 Device Connection (Bluetooth or 2.4G USB Receiver) Bluetooth Quiet Computer Mouse, 2*AAA Battery Thumb Laptop Mice with 5 Level DPI for PC/Laptop/Mac/Windows Red

Customers find the trackball mouse smooth and easy to use, with reliable performance and good ergonomics. They appreciate its quality and comfort, with one customer noting it's perfect for working from home. The connectivity receives positive feedback, with one customer highlighting its stable Bluetooth connection. Battery life receives mixed reviews, though several customers report good performance.