Universal 19" preamplifier with audio player, Bluetooth and FM radio Built-in audio player with Bluetooth receiver Integrated Bluetooth audio streaming SD card slot and USB port 5 stereo line inputs 4 RCA L/R connectors on the back panel and 3.5 mm connector on the front panel Audio source selector Controls for volume, bass and treble 1 microphone input with controls for volume, bass and treble on the front panel 3 stereo master outputs (19") 48.3 cm rack installation 1 U For application areas such as: Trade fair and shop fitting; sports centres/gyms; restaurants, bars and hotels