Power Output: 2 x 12w (8 Ohm, RMS)Power Output: 2 x 24w (4 Ohms RMS) Power Output: 60w Max Peak 2 Microphone Inputs 2 Mic Volume Controls Echo Control DVD VCD-CD Tape Karaoke Input Selector Treble/Bass Controls Master Volume Control Power Voltage: 110v Frequency Range: 20-20khz Input Sensitivity/Impedance: 265mv/1khz S/N Ratio: 77db Input Sensitivity Of Microphone: 8mv Thd: 0.3 %( 1khz/1w) Power Supply: 110v Dimensions:3.3" X 9.8" X 9.1"