1. Support SD/MMC card reader MP3 player
2. USB port: USB 2.0
3. Disk reed speed: 970k bytes/sec
4. Music format: Support all of MP3 format
5. Support software update online
6. Support files mangenment in u-disk, SD-card, harddisk
7. IR remote control function(optional)
8. Key function: SD/u change, next, prev, vol-, vol+
9. Support memory play, repeat play, EQ function
10. Support auto play when put into SD card or u disk
11. Connection terminals: AV input/output jack
12. Output power: 30W*2
13. Frequency response: 25Hz--20KHz
14. AC power: AC 220v/50Hz