Philips EXP103 eXpanium Portable MP3-CD Player with 45-Second Anti-Skip and Car Kit Plays MP3-encoded CDs as well as audio CDs, CD-Rs, and CD-RWs Shockproof Magic ESP (up to 100 seconds of MP3 shock protection, 45 seconds for standard CDs) Playback of all common MP3 bit rates and variable bit rates per track (320 Kbps maximum) Up to 10 hours of playback on 2 AA batteries Headphones, car kit, and AC/DC adapter included