MEGAPHONE CMP-1099E+USB+SD+Remote L177xH287mm Dry cell:8 x1 #("D")/DC 12V /AC 220V Power:50W RMS/100W MAX 2-MIC,1-AUX Input MEGAPHONEAHUJA design CMP-1099E +USB+SD+RemoteL177xH287mmDry cell:8 x1 #("D")/DC 12V /AC 220VPower:50W RMS/100W MAX2-MIC,1-AUX Input,MasterExt-speaker output,with extra-mic With cassetteCMP-1099UCMP-1099E with USB+SD card+Remote Cassette megaphone CMP-1099E+USB+SD+Remote