1. New remote Bluetooth/ SD/USB/MP3/Recording                                
2. two wireless microphone   
3. Two ways of microphone input amplifier 
4. With out connected audio input amplifier and audio output
5. Advanced digital Karaoke reverberation effect
6. Big capacity battery, which can be used for long times 
7. Battery indicator stop automatically when charged full and release for protection
8. Audio 100W out put power 
9. Inside 8 inch woof speaker and  horn speaker with big power