Philips EXP303 eXpanium Personal CD Player with CD-MP3 Playback and Car Kit MP3 and AAC playback with CD-R/-RW compatibility 100-second Electronic Skip Protection (above average) VBR (variable bit-rate) playback (ensures high-quality playback of encoded files) 15 hours' playback time with 4 AA batteries (ESP on) Includes AC adapter and car kit