To play the surround sound with DOLBY ATMOS or DTS:X, connect your Blu-ray player or other digital device to the HDMI input connector on the soundbar. If the TV support Dolby ATMOS, served over HDMI ARC, just make sure it is selected in the TV setting menu. To select the most suitable amount of sound effect of DOLBY ATMOS and DTS:X, press on the remote control ATMOS level button, to switch between MID, HIGH, LOW or OFF. Note: If your TV has an eARC HDMI input, you can connect your Blu-ray player or other digital device to the HDMI IN connector on the TV.