The Sonos(R) Multi-Room Music System is a modular set of digital appliances that works with end-user supplied speakers to form a zoned audio system in which different zones may play the same or different audio. The Sonos Multi-Room Music System creates multi-room audio hi-fi in which different zones may play the same or different songs simultaneously throughout the house. The company tagline is "All the music you want. All over your house. All from the palm of your hand."