On a desk a shelf or a wall, the Craig 3-Pieces CD Shelf System with Dual Alarm Clock AM/FM Stereo Radio saves space--and rocks out! It has an LED display, programmable CD player, dual alarm clock, AM/FM stereo and an line-in jack that lets you connect your MP3 Player. Electronic volume control helps improve sound quality. Uses AC adapter; clock battery backup uses a 9-volt battery (not included). Remote control uses button cell battery (not included).