Whenever you move Roam or Move to a new location, Automatic Trueplay uses the speakers’ built-in microphones to measure how sound reflects off their surroundings, and then automatically adjusts the sound so that your music is perfectly tuned for the new environment. To turn on Automatic Trueplay, go to Settings>System, choose your product, tap Trueplay, and then toggle Automatic Trueplay to ‘on.’ | Sonos