Philadelphia is Using A SONIC WEAPON To Keep Kids Away From Parks! (Not The Onion!)
Press for Truth – The high-pitched frequency (17.5 to 18.5 kilohertz) can be heard by young people ages 13 to 25 years old.
TAG: sonic weapon
Press for Truth – The high-pitched frequency (17.5 to 18.5 kilohertz) can be heard by young people ages 13 to 25 years old.