DESC: Enjoy extra hours of uninterrupted CD music. Slide one CD or MP3 CD into the Wave® music system's front slot, and up to three more into this optional Multi-CD Changer. The easy-to-use changer is seamlessly controlled by the Wave® music system remote and provides an additional connection for another audio source. Note: This changer is not compatible with the Wave® radio/CD with top-loading CD player.