1. Support 128MB/256MB/512MB/1GB/2GB 2. Playback MP3/WMA multi-format files; 3. Support lyrics display; 4. Firmware upgradeable; 5. 7 types of EQ mode DBB, Pop, Rock, Jazz, Classic, Normal, Soft; 7-6. 2 color OLED display; 7. High quality voice recording; 8. Support up to 9 folds of music and 99 files in each fold; 9. Resume to the track time before power off; 10. A-B repeat, selected content repeat function; 11. Support Multi-language; 12. Build-in rechargeable Lithium battery