Stark Sonic Cannon

The Sonic Cannon is a type of non-lethal anti-personel weapon developed by Stark Industries. They are capable of admitting an extremily intense, focused field of compressed sound waves that can disable most assailants. A pair were used by the United States Armed Forces durring an attempt to capture the Hulk at Culver University.

History
In their ongoing operations to locate and capture Bruce Banner/The Hulk, the US military acquired a pair of sonic cannon outfitted Humvees from Stark Industries, in hopes that the cannons would be sufficient to subdue an enraged Hulk. During an operation to capture Banner at Culver University, Gneneral Ross gave the order to use the cannons on a rampaging Hulk. While initially successful at immobilizing Hulk, he was able to escape by destroying one from a distance and jumping out of the other's range.

Capabilities
A creation of Stark Industries, the sonic cannons were developed to be a from of non-lethal anti-personel weapon, capable of crowd controll or non-lethal attacks on enemy armies. The cannons produce a focused field of intense sound waves that immovillize enemies by overloading their sense of hearing. On it's highest settings the cannon fires and extremely narrow, focused field so intense that it causes visible ripples in the air and has enough striking force to knock a large assailant like the Hulk off balance.