Siren SIR103 IV 4 GB MP3 Player Includes - Pro style earbuds Carrying case with arm band for convenience USB 2.0 cable 1 AAA battery Software installation disk and Quick Start Guide 4GB flash memory, storing up to approximately 2000 MP3 or 4000 WMA music files Reverse Backlight 128x64 LCD Display Supports MP3, WMA and WMA DRM music and playlist files FM and voice recording