The LG LX-U251D is a versatile audio system that combines a CD player, radio tuner, and cassette deck into one convenient unit. Play your favorite CDs, listen to the radio, or enjoy your cassette tape collection with this all-in-one system. The CD player supports MP3 and WMA files, and the cassette deck features auto-reverse for continuous music playback. With a range of sound adjustment features, including XDSS, OAO, and MP3 Optimizer, you can customize your listening experience to suit your preferences.