Professional MP3 player that is perfect for commercial environments such as restaurants, bars and schools Dual channels with single or master outputs in order to send each side of the media player to external speakers separately Bluetooth technology and a USB/SD MP3 player on each side to play audio from two devices at once Blue LED display with ID3 tag information to show you the track name, artist, album and track number 1U (19-inch) rack-mountable for simple installation in professional establishments while preserving space 2-Year extended warranty