... 80hz-22khz),4 ohms, car car amplifier ,car audio amplifer car speaker ,auto speaker ,speaker car speaker ,auto speaker ,speaker specification amplifier Modle mrv-705,V 15 ... ) SENSITIYITY 80dB QTY/CTN 10PCS Impedance 4 ohms Operation voltage DC12V GROSS WEIGHT 0.5kg Dimemsions(W*H*D)CM10*3 ...