Philips EXP2461 Personal CD/MP3 Player with 100-Second Electronic Skip Protection Personal CD/MP3 player with heat-resistant body designed for exercising or on-the-go activities Supports CD, CD-R, CD-RW, and MP3-CD formats; 1-bit digital-to-analog converter 100-second electronic skip protection for MP3s and 45 seconds for CDs; Dynamic Bass Boost system 50-track programming, repeat play (1 or all tracks), and shuffle play; dual-color LCD display Runs for 15 hours (CDs) or 22 hours (MP3s) on 2 AA batteries; 1-year warranty