Logitech Ergo M575 Wireless Trackball Mouse Easy Thumb Control Precision. Minimize movement and maximize comfort with ERGO M575 ? a wireless trackball with a sculpted ergonomic shape. With no need to move your arm around to m0ove the cursor, your hand and arm stay relaxed. The smooth and responsive thumb control can be used anywhere ? and since it doesn?t need to be moved ? ERGO M575 is perfect for tight desk spaces. Compatible with Windows and Mac. Battery operated, AA battery not included. Tested and working well via bluetooth - see video. USB receiver not included but can be replaced. Vintage technology tech vtg. Logitech Ergo M575 Wireless Trackball Mouse #computer Video will open in a new window Using the App? Paste link into a browser window: [isdntekvideo] 5309.c2.20250107