Product : Home Audio > Sound Bars > HW-E350
The 3D Depth sound function adds depth and spaciousness to sound.
Follow the steps below to enable the 3D Depth sound (3D Sound) below.
In other words, when pressing the 3D Sound button you are not able to confirm the settings, instead you are changing the setting to the next mode. The 3D Sound button should be pressed until you select the mode you want to set, and then not pressed again.