Patent US 4,172,406

A pair of headphones has a right speaker for the right ear and a left speaker for the left ear of the user. The speakers are electrically connected to each other and to a sound input source whereby the speakers reproduce sound from the sound input source. A pair of goggles is coupled to the headphones and covers the eyes of the user. A plurality of lamps are provided in the goggles, visible to the user. A microphone is electrically connected in circuit with a source of electrical energy and the lamps whereby sound reproduced by the speakers is picked up by the microphone, converted into electrical energy which varies in intensity with variations in the sound, and varies the energization of the lamps to provide a light pattern which varies in accordance with variations in the sound.