When pressed, the button sends a signal to the actuators of the convenient electrical installation. LEDs show whether the signal was sent, correctly understood and confirmed, but do not provide any feedback on the actual switching state of the actuator. It is not necessary to distinguish between blinds, dimmers, etc. or changeover, crossover switches or blind switches, etc. The device is powered by a button battery and can therefore be easily attached anywhere (screwed and glued). Due to the flat design, NO switch, junction or installation box is required. The button is compatible with many 55mm frames from the switch industry (compatibility list provided). Battery included in delivery.