The CD-400UDAB is a compact-sized, rack-mountable and remote-controllable media player that can play tracks from CDs, USB memory devices, SD cards and Bluetooth devices. It also includes an FM/DAB+ tuner with 20 presets to play music from radio stations and a front-panel mini-jack input to connect devices such as portable music players. The tuner has its own output enabling the user to supply two rooms with different music signals, for example.

Remote control is possible by the included wireless RC-CD400 and by serial control via the built-in RS-232C port. This all-in-one CD player is suitable for a wide range of applications, from background music in touring, restaurants or small stores to use in public facilities.