When pressed, the button sends a signal to the actuators of the convenient electrical installation. There is no need to distinguish between blinds, dimmers, etc. or changeover, crossover switches, 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 the 45x45mm Niko designs 'Pure, Intense and Original'. Battery included.