The Logitech Performance Mouse MX and the Logitech Anywhere Mouse MX feature Logitech Darkfield Laser Tracking, which allows you to use your mouse virtually anywhere you want.

You can even use the mouse on clear glass and high-gloss surfaces.

“Logitech research showed that 40 percent of people have a glass surface in their home.

This coupled with the increase in the popularity of laptop computers, means that people are moving around and coming into contact with a multitude of surfaces such as granite and lacquered wood – that challenge the tracking capabilities of standard mice”