| Olympic 120Watts PMPO speakers with internal power transformer, feature the 3.5 mm stereo headphone jack, magnetically shield design, power on/off switch and volume control, Frequency response of 20hertz-20kilohertz +2dB (Decibel), input sensitivity of 100-1000mv, input impedance of 2k Ohms, AC (Alternating Current) power supply, Power on LED (Light-Emitting Diode). |