The Stark Sonic Cannon is a type of non-lethal long-range acoustic device (LRAD) weapon developed by AccuTech, a subsidiary of Stark Industries. It is capable of emitting an extremely intense, focused field of compressed sound waves that can disable most assailants. A pair were used by the United States Armed Forces during an attempt to capture Hulk at Culver University. Miniature versions of the sonic cannon were built into the Mark II and Mark III versions of the War Machine armor.