Meet the MX Master 4 that brings immersive control and precision you can feel with customizable haptic feedback on specific actions. Save up to 33% of your time with Actions Ring shortcuts and the MX Master 4 by accessing tools and filters at your cursor. Additional features: 2x better connectivity, ultra-fast scrolling with the MagSpeed scroll wheel, 8 K DPI any-surface tracking, including glass & Logi Options+ for customisation.