products name:public amplifier brand:Kinter model:MA-200 color:red,blue,black,green High products name:public amplifiermodel:MA-200 INPUT:DC12V-14.4V RATED POWER:40W*4LOAD IMPEDANCE:4-16Ω SIGNAL-TO-NOISE RATIO:85dbDISTORTION RATE:0.3%FM FREQUENCY RANGE--87.5MHz—108MHzSPECIAL FUNCTION:USB,SD,FM,WITH DIGITAL DISPLAY ,ANTENNA AND REMOTE CONTROLSPECIFICATION:58*37*33CM 30PCS/CTNG.W:21.5K N.W:20K 4 ...