8000 dpi Darkfield optical sensor provides precise tracking on almost any surface, including glass. Quiet Click buttons reduce noise by 90?%. MagSpeed scroll wheel allows fast and precise scrolling up to 1000 lines per second. Haptic sense panel provides tactile feedback for specific actions. Ergonomic design fits most hands with natural tilt, intuitive buttons, and thumb scroll wheel. Customization available through Logi Options+ software for Windows and macOS.