Sony portable CD player Mega bass reflex stereo sound system  the Sony digital CD radio player is a cost-effective way to enjoy your tunes in multiple formats. The portable sound system gives you access to the AM/FM radio, CD-R/CD-RW playback, the option to connect your MP3 player or other portable audio devices via the stereo Mini jack audio input. 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 digital FM/AM stereo tuner with 30 station preset memory (20 FM, 10 AM) lets you choose from a wide variety of radio, talk and music programming; battery operated for portability; plug in and power up at home, or use C 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’s; Mega bass  bass reflex speaker system and Mega bass for rich, Deep low tones and a more powerful, crisp overall sound  headphone jack  listen out loud, Or plug in a pair of headphones and play your music back in private  dual AC/battery Power  plug in and power up at home, or use 6 C batteries to take your music with you wherever you go  inputs and outputting; input): audio in jack (Stereo Mini jack)  output): headphone jack (Stereo Mini jack), for 16-32 Ohm impedance headphones