1. Support MP3,WMA music format with USB interface . 2. Support lyrics display synchronization. 3. Firmware upgrade function. 4. 7 kinds of voice equalizer. 5. Support simple Chinese, traditional Chinese, English display 6. 36 Hour long record (128M) and VOX record. 7. Support 9 one-class directory and each has 99 play document. 8. Support system individuation configure document. 9. Support delete one current document or all songs(records) in one time. 10. Support self-defined open picture. 11. Support USB connecting and using in the condition of no battery. 12. Support USB start PC function. 13. 1.5 V/AAA battery.
