1.Supporting MP3 and WMA music formats. 2. Synchro lyric display. 3. OLED display; Seven sound effect modes. 4. FM function & Multi-language available. 5. Rechargeable lithium battery. 6. High quality recording function(duration increasing and VOX decreasing). 7. Maximum download speed :400K bps. 8. Warranty: 1year. 9. Min. data retention: 10 years; 10. Shock resistance: 1,000g.