Logitech's most advanced wireless mouse - now with even more options MX Master 4 is a high-performance mouse with haptic feedback, designed for an immersive and precise workflow you can feel. Save up to 33% of your time* with Actions Ring shortcuts, accessing tools and actions directly at your cursor. *Logitech Ergo Lab study (2025) with 37 MX Master mouse users tested across 8 desktop actions. Results may vary depending on assigned shortcuts. More comfort. Deeper focus. MX Master 4 is designed to keep you comfortable and in the flow for hours. The optimised tilt angle keep your arms in a more natural posture and the ideally positioned buttons allow for quick and intuitive navigation. Even the scroll wheel follows the natural movement of your thumb for fluid and familiar horizontal navigation.