This Redback A1745 simple random message and music player connects to any existing stereo input to provide intervalled messages and background music for your customers. The included 8GB SD card can be loaded with your choice of background music and custom messages or promotions. Message intervals can be adjusted between 30 seconds and 7.5 minutes. A standard stereo RCA line output is provided for easy connection to any existing PA or telephone system. Playback commences automatically when switched on and files play in the order in which they are named in the ‘music’ or ‘messages’ folders (ie alphanumeric).