1 MIC inputs, 1 Aux inputs,1 AUX output ,Individual control for MIC,MP3 and AUX input. Bass & Treble control.With USB interface/SD card and FM.Rated Output Power: 50WPower Outputs: 4-16Ω,100VFrequencyResponse:40Hz-18KHz±0.5dBS/n Ratio: MIC part >70dB,Circuit part>76dBPower Requirements: AC 220V(50-6..