http://www.haaretz.com/hasen/spages/584191.html
Israel uses sound technology to disperse riot
On Friday, the IDF unveiled a new crowd-dispersal tactic, emitting painful bursts of sound at a special frequency to help break up the demonstration, military officials and witnesses said.
IDF officials confirmed soldiers used a new "non-lethal" tactic at the Bili'n demonstration.
The officials, speaking on condition of anonymity under army regulations, said the weapon uses "voice frequencies" to disperse crowds. They said Israel developed the technology over the past four years, but had never used it in a live situation before Friday. No further details were immediately available.
An Associated Press photographer said a military vehicle arrived toward the end of the demonstration, which lasted several hours.
Located about 500 meters from the demonstration, the vehicle emitted several bursts of sounds, about one minute in length each time. Although the sound was not loud, it caused people to cover their ears and grab their heads in discomfort.