Internal flash memory provides 2 hours of MP3 playback or 4 hours of WMA playback</br>Stores up to 16 hours of digital voice recording</br>LCD displays song title?? album?? and artist information</br>Expandable up to 256 MB memory using SD/MMC card (not included)</br>2 5/16" x 3 1/8" H x 1" D</br></br>Product Description</br></br>FEATURES: 128MB Built-in Flash Memory; Up to 256MB Memory Using SD/MMC Card (SD/MMC Card Not Included); Digital Voice Recording Function up to 16 Hours; Mobile Data Storage Function; LCD Displays Song Title?? Album and Artist Information; Digital Preset EQs (Normal?? Classic?? Rock?? Jazz  Pop); Mini USB PC Interface for Fast Down/Uploading; Upgradeable Firmware; PC and Mac Compatible.</br><br/>http://www.amazon.com/gp/product/B0008G1V9Uhh