MX Master 3 is instant precision and infinite potential. The electromagnetic MagSpeed wheel provides up to 90% more speed (6), 87% more precision(7), and shifts modes in near silence. App-specific button customizations speed up your workflow. And a 4000 DPI Darkfield sensor means you can track virtually anywhere ? even glass. It?s faster and 5x more accurate than the basic mouse. With MX Master 3, you can truly master what you make. B2B version non-retail packaging.