ERMAX stations control the illumination and the surround sound in an intelligent way. The photocell and the infrared ray, placed strategically, supply the data so that the illumination is activated only in the presence of people and when the surrounding light is below the programmed level.

The sound reaches gradually its maximum volume, performing always the given information by the infrared ray sensors. They keep this value, until the leaving of the people, moment when, the volume level slows down gradually until extinguished.