Panasonic SL-CT700 Portable CD Player Ultra-thin (.66-inch) portable CD player with MP3 playback and No Skip protection (CD: 45 seconds backup, MP3: 100 seconds backup) Up to 80 hours battery life from 2 Ni-Cd rechargeable batteries (supplied) and 2 AA alkaline batteries (not included) Illuminated command keys, ID3 tag support for MP3 artist/track info Wired remote control and optional external battery case included 3-preset equalizer including S-XBS bass boost