RCA Jet 4 GB Sports MP3 Player with Video, Music, FM Radio, and Sports Features (Black) 4 GB of flash memory stores up to 1,200 songs or 17 hours of video Built-in lithium rechargeable battery provides up to 30 hours of audio playback Water and sweat-resistant Digital FM tuner features 20 presets Easy-to-read, 1-inch, full-color display