M3AO TDA7297 Amplifier Module Audio Amplifier Module Description: The onboard TDA7297 audio power amplifier chip， double track +15W， 15W for four to eight European 10W ~ 50W speakers use Main pin has led chip， convenient external control device， the onboard 5.08 (mm) distance between two p terminal 2 road， around a track connection output respectively The onboard dial potentiometer， output size can adjust the volume Support DC， terminal blocks， row needles 3 power input mode， the default for the DC， working voltage: 6V to 18V Size: 4.5 x 3.3 x 2.7cm Package included: 1 x Audio amplifier module