iAudio I5-512BU 512 MB MP3 Player with FM Radio and Voice Recorder (Aqua Blue) Features MP3, MP2, OGG, WMA, ASF and WAV playback; voice recording, FM radio, and Direct MP3 Encoding 512 MB of built-in flash memory 40 levels of digital volume control Up to 20 hours of continuous skip free playback with on AAA battery Sound Effects of BBE, Mach3Bass and 5 Bands EQ. 4 Lines Wide Graphic LCD.