The 2 GB Sansa?® Express?„? MP3 Player from SanDisk?® provides high-quality digital music playback. With its microSDTM slot, you can expand its storage capacity. The player offers 15 hours of continuous playback with its rechargeable lithium polymer battery. In addition, the Sansa Express player features a FM tuner with many preset stations and a built-in microphone to record your voice. The bright, 4-line OLED display and simple to use controls adds to your visual experience and offers easy navigation through the menus. The MP3 player supports MP3, WMA, Protected WMA, WAV and Audible formats and provides USB 2.0 interface for easy transfer of files.