RCA Portable Stereo CD Boombox with Cassette Tape Player - Digital AM/FM Radio, (RCD378D) CASSETTE TAPE PLAYER: Play, Auto Stop, and 1-touch Record. RADIO: Digital AM/FM tuner with 20 presets. DESIGN: Top-Loading CD Player (CD, CD-R and CD-RW playback). AUDIO LINE-IN: Plays music from your mp3 player or other music sources. DIGITAL VOLUME CONTROL/INDICATOR: Gives you precise control of the volume level. Transitions indicated on display. ALSO INCLUDES: Built-in stereo headphone jack (3.5mm) and AC/DC adapter.