Wilton SPHD310 Bluetooth 4.0 HDMI 2.1 Channel Sound base Home Theater Surround Sound Speaker System Deep Bass FM Optical/Coaxial AUX Input HDMI full HD 2160P/4K Powerful digital sound bar with most recent Bluetooth 4.0 technology 2 HDMI Input and 1 HDMI output, Fully Functional Remote Control, LED display Drive unit: L,R channel 2*2.5 inch each, Subwoofer 6.5 inch Frequency: L,R 150Hz-20KHz,Subwoofer 50Hz-280Hz