wikipedia Wrote:The Mosquito or Mosquito alarm is an electronic device used to deter loitering by young people by emitting sound at high frequency, in some versions so it can only be heard by younger people. The devices have attracted controversy on the basis of human rights and discrimination concerns.
visit the wikipedia article and play the sound file.
are you able to hear it?
i am - which is so weird. especially because i do have a bit of a hearing loss due to firing weapons without earmuffs and my love for loud music. as a teenager i loved to dance directly in front of the effen speakers.^^
really surprised me.
thought i'd share it. stumbled across this article while researching stuff on deadly sonic weapons.