Edifier S70DB TV sound bar high quality speaker has 45Hz - 20 KHz audio response range, ≤3dB frequency response, ≤25dB noise level, 600 ± 50mV input sensitivity, 450 ± 20mV SW, 400 ± 50mV AUX input R / L, 500 ± 50 mFFs bluetooth input, 8 inch subwoofer, 70 mm bash unit, AUX / bluetooth / line in / optical fiber / coax XX audio input.