MASS (Multi Ammunition Softkill System) is a naval self-defence system, produced by Rheinmetall of Germany. It is connected to the ship's sensors and protects ships from attacks by advanced, sensor-guided missiles, by launching decoys, that operate in all relevant wavelengths on the electromagnetic spectrum (ultra violet, electro-optical, laser, infrared and radar).
As of March 31/09, Rheinmetall Defence stated that "MASS has attracted orders from 9 nations, for 130 launchers, on 15 different classes of naval vessels."
three additional unknown customers.