The TV Ears Digital System uses the latest digital audio technology. It is compatible with the latest LED and OLED TVs and uses a powerful transmitter to produce a very clear sound. It features digital audio inputs and is also compatible with older TV-models. All TV Ears products use a special technology that automatically manipulates the audio curve to increase the clarity of television dialogue. TV Ears products allow people with hearing impairments to listen to the television set at their own volume, without disturbing others.