rms output power 45w 2 channel 1 aux input 1/8" jack 1 stereo rca input mp3 player system usb port sd port stereo speaker output 8ohm, 16ohm frecuency response 20hz-20khz t.h.d 0.7% s/n ratio <80db emergency mode 12v dc External battery power supply 110/220v~60/50hz Remote control
