ELECOM DEFT PRO Trackball Mouse, Wired, Wireless, Bluetooth 3 Types Connection, Ergonomic Design, 8-Button Function, Red Ball, Windows11, MacOS (M-DPT1MRXBK)

Customers appreciate the trackball mouse's button functionality, with lots of buttons that can be defined and improved workflow, and its responsiveness, though some report jerky movement. The ergonomics, connectivity, and software receive mixed feedback, with some finding it the best mouse they've had while others report it simply stops working. The size also gets mixed reactions, with some praising the ball size while others find it too large for their hands.