Portable Audio System,PA sound box S-200 Specifications for S-200 : 4Channel microphone line input Microphone phantom power. +48V MIC input Level: 60dB input Impedance 600 ohm Line input Level: -20dB input Impedance 47K chm Channel level clip muter 5-Band graphic equalizer Channel 3-Band EQ 1-16 Band dight effects Power amplifier output 2x75 Watts 8 ohm THS0.1% Frequency response +/-0.5dB (20-20KHz) Signal Noise ratio105dB DIM:70*28*40cm Package contents: Mixer x 1 Speakers x2 Speaker cables x2 Microphone with cable x 2