The Sonic Arrow is a non-lethal trick designed to distract or incapacitate a small group of targets. It emits an incredibly loud sound similar to a siren or alarm that can very dangerous at close range. (How is this not called the Canary Cry Arrow?) It can also be useful as an alarm or tracking device.
The sound can trigger after being fired or upon impact. It usually attaches to the target through a suction tip or adhesive arrowhead making it difficult to get rid of, especially when you’re being distracted by the noise.
This trick is useful for fighting mentalists and anyone that requires intense concentration such as Green Lanterns. The sound created can be so intense that at close range it will cause pain, nausea, and temporary deafness. Total disruption of concentration is possible interrupting telepathy, mind control, and other effects.
This is a very significant trick in Hawkeye’s history. His hearing was permanently impaired after he used it at very close range to counter an attack by Crossfire. He wears a Stark designed hearing aid to this day.