A media control is a central control system that is used to operate complex audiovisual (AV) media technology easily and conveniently. It makes it possible to control various devices such as projectors, screens, microphones and speakers using a single control. For example, with just the push of a button you can start a presentation where the projector is automatically switched on, the signal source is selected and the sound is adjusted to the appropriate volume. After the presentation, the system can switch off automatically.