The app also helps you add on compatible MusicCast devices (additional speakers, subwoofer) in the future

I was fortunate enough to receive the Yamaha MusicCast 20 speaker and after playing with it for a few days comparing sound quality, features and functionality to a few other essentially similarly focused speakers (Pure Jongo S3, Logitech UE Air, Boston Acoustics MC200Air), I find it to be a pretty nice device but one most likely to be most pleasing to users already entrenched in the Yamaha audio environment or those looking to move in that direction