MX Master 3 is the most advanced Master Series mouse yet, providing instant precision and infinite potential. The electromagnetic MagSpeed wheel provides increased scrolling speed, enhanced precision, and shifts modes in complete silence. App-specific button customizations speed up your workflow in the apps you use most. A 4000 DPI Darkfield sensor means you can track virtually anywhere – even on glass. It’s faster and 5 times more accurate than most basic mice. Your hand rests perfectly on the sculpted form and Flow software allows you to work across multiple computers and operating systems.