RipDrive MP3 Jukebox - 30 GB Plays MP3 or WMA ( Windows Media Audio ) files Has the ability to record directly to MP3 file format from any audio source, using its line-in connector or internal microphone Built-in Voice Recorder function EL ( Electro-Luminescent ) Backlit Graphic LCD screen Built-in rechargeable battery allows up to 10 hours playback time on one charge