This app help you control all your Sonos speaker on your local network, you can use play/pause speaker, control volume, change Bass, control shuffle and repeat. Play your music file on Sonos from your Mac directly by drag drop files. Streaming audio from your Mac audio input ( Microphone or All System Sound ) to Sonos speaker ( audio may delay several seconds based on your network ). * Streaming System Sound need extra system sound extension to redirect audio. * You need Sonos speaker to work with this App.