Grouping rooms
Tap the “Rooms” tab.
Press and hold your finger on room that is not playing music.
Drag it into the room that is playing music (indicated by the red outline) and lift your finger.
The two rooms will be grouped together into a single device group and both rooms will be playing the same music in perfect sync.
Grouping cannot be used when this unit is playing TV audio or external input audio. Enable “TV Sound Grouping” to use grouping.link