Technical Pro MA2020 Class-T Stereo Mini Amplifier with Power Supply, Headphone Output & Microphone, Silver 20 Watts per Channel (RMS) Inputs: RCA, AUX, Microphone input (1/4'' ) Outputs: Push Button (2 loudspeakers), RCA (Record Line Out) Headphone output( 3.5mm) Bass and treble controls Direct / Equalizer function allows option of unfiltered pass-through Power / volume knob makes it easy to turn on and off in a single motion LED Knob provides a glowing effect on Knob for easy access in dark environments LED can be turned on and off Speaker impedance : 4 - 8ohm Frequency Response: 20Hz-20KHz Input sensitivity: 200mv Input power: 12V DC, (power supply included) 1/8" (3.5mm) to 1/8" cable included 1/4" Mic Input on face for a quick and easy PA Solution 1/8" (3.5mm) Headphone Jack on the face of the unit