Rio Digital Audio Receiver with Rio Digital Audio Connector (PCI) Stream CD-quality digital audio to any room with an available phone jack Connect to stereo system or use as a standalone receiver Sort music by artist, title, album or genre and create custom playlists Compatible with existing audio software like RealNetworks Jukebox and MusicMatch Jukebox Digital audio sent over your existing phone lines without interfering with your phone service--also works with Ethernet network; includes Rio Digital Audio Connector PCI card for connecting to home phoneline network