SPECIAL FUNCTION:USB,SD,FM, TWO MIC INPUT AND DIGITAL DISPLAY AC/DC INPUT:AC 220V/DC12VRATED POWER:25W*2SIGNAL-TO-NOISE RATIO:75dbDISTORTION RATE:0.2%FM FREQURNCY RANGE--87.5MHZ~108MHZSPECIAL FUNCTION:USB,SD,FM, TWO MIC INPUT AND DIGITAL DISPLAYSPECIFICATION:53*47*26CM 12PCS/CTN KINTER-009