SA-6907
1.Speaker unit :Double 15 inch bass woofer +6inch mddle speaker +5 inch tweeter
2.with main volume ,treble ,bass control knobs
3.mic volume ,bass ,treble ,echo.delay
4.MIC priority ,guitar volume adjustment
5.two wired MIC interface +1 guitar interface
6.with audio input +audio output
7.with 2 PCs UHF wireless microphones
8.with USB/SD/FM/bluetooth /digital display/remote control /silence button
9.storage bag for wireless MIC 10.with 12V 17AH lead acid battery