Immerse yourself in surround sound whether you're listening to music or enjoying movies and games. 
 
  
 
	 -  
		  From the 
				Home screen, tap 
				 , and then find and tap 
				Settings. , and then find and tap 
				Settings.
-  
		  Tap 
			 HTC BoomSound with Dolby Audio to toggle between Theater mode and Music mode. 
		   
		
 
		Note: HTC BoomSound with 
		  Dolby Audio is not available over HDMI, 
		  Bluetooth, 
		  Miracast, or USB audio out.