Sylvania Portable Cd Player & AM/FM Radio Mega Bass Reflex Boombox Sound System CD playback - Enjoy your favorite CDs or personally recorded CD-R and CD-RW discs, including those with MP3 files AM/FM Tuner - A built-in FM/AM Stereo Tuner lets you choose from a wide variety of radio, talk and music programming Mega Bass - Bass Reflex Speaker System and MEGA BASS for rich, deep low tones and a more powerful, crisp overall sound Dual AC/Battery Power - Plug in and power up at home or use batteries to take your music with you wherever you go Auxiliary Input - An auxiliary audio input lets you connect digital music players to the speaker dock for easy access to your music