Whenever you want to watch a movie in the middle of the night, when you are middle-law partner and deep down each dream. Then you turn on your home theater devices. You plug your sound decibels at maximum volume. Of course you are making war stories in the household the next morning.
But thankfully God created man who invented headphones, so that the solution you are addictive to watch in the middle of the night is met with the headphones. Head phones are already available in wireless, suck up all of the music that will come out of the A / V receiver to him. And no longer to the existing Audio output. Not only that, the headphones also creating an atmosphere that ultimate listening without any distortion of other sounds. But not too often use it, sorry for your ears.