CD Audio Storage and Music Streamer Includes 2 TB hard drive - installed and tested Direct Playback - Has a high speed front loading CD Drive built in with a 3.5" full color TFT LCD to display a high quality user interface. Multiple Format Storage - It will support various audio formats such as MP3, FLAC, WAV, WMA, AAC, M4A. The capacity of 2,600 CDs in WAV (uncompressed) can be stored in the 2 TB model. In the MP3 format (192 kbps) 20,000 CDs can be stored in the 2 TB Variety of Connections - The rear of the unit permits a variety of connections and options. Speaker connections for passive (no power) speakers - right and left (8 ohm speakers only). Works as a music server with Sonos. Internet Radio - When connected to the Internet with the included USB WiFi dongle, you can connect to worldwide radio stations. Play and record from an external turntablethrough Line(AUX) -In . Convert analog audio to digital into the unit hard drive.