SAMSUNG YP-20:Features: 64MB of Built-in Flash Memory - Listen to about an hour of CD quality music with 64MB. 4-Mode Equalizer - Enhance the sound of your music with Jazz, Classic, Rock, and Normal EQ settings. Real Time Clock -Time and date can be displayed in addition to track information. MP3 Audio File Playback - Enjoy skip-free playback of your MP3 audio files anywhere. USB Data Transfer - Upload files faster and easier with the USB connection. Super Bass Sound - Adds bass for a richer, fuller sound. Large LCD Display - An easy-to-read display that includes song title, artist name, and more.