The Sonos Desktop Controller represents the latter: once installed on your Mac it can connect with the wireless speakers, manage your music library, and decide what tracks should be played on each specific device. The system is comprised from a bridge that is connected to your router through an Ethernet cable, as many wireless speakers as you want, and an application that controls the music being played. The Sonos wireless speakers offer you the possibility to listen to music from anywhere in your home, over Wi-Fi, without having to deal with wires and other setups. The Sonos app will now alert you when your Roam is connected to a charger that isn’t providing enough power to charge the battery.We’ve improved Roam’s power management to help extend Roam’s battery life when it’s not actively being used.What's new in Sonos Desktop Controller S2 13.3: