The multi-room sound systems of playing music with exeptionnelle sound quality for the size of these devices, if you already have an integrated system in your home is absolutely stunning simplicity and quality, linking all sound sources you can have via the Internet, or your various storage devices. I am amazed at the lack of visibility of this product in the specialized trade, which both boast dock for digital players with mediocre sound quality. I highly recommend this product is in perfect tune with the digitization of music.