NAXA Electronics NPC-330 Slim Portable Cd and MP3 Player with FM Radio & Anti-Shock Technology Plays CD, CD-R/RW, and MP3 discs 120 second Anti-Shock memory during MP3 playback (40 seconds for CD) Digital FM radio tuner 3.5mm headphone and 3.5mm line-out (stereo headphones included) Power: two AA batteries, DC 4.5V (requires optional adapter) Note: Refer the User Manual and Troubleshooting Guide before use.