Wireless infared headphones hook up to any TV or other audio source with a headphone jack. Infared signal does not travel to other rooms and interfere with anything else. Transmits up to 30 feet. Excellent sound. Works with any audio source that has a headphone jack. Even works with TV's without a headphone jack. Comes with a microphone and a piece of velcro that can be fastened in front of a speaker to pick up the sound. Headphone has on/off switch and volume control. Comes with AAA rechargeable batteries and charger.