Do I have ultrasonic hearing? My boyfriend s dad bought a Dog Chaser, which is basically a device that repels dogs with the use of ultrasonic frequencies that ranges in between 20,000 - 25,000 hz. The weird thing is, when they press the button, I can hear it. I can also feel the discomforting pressure in my ears. No one else can hear it or feel discomfort from it besides me. I know humans can only hear below 20,000 hz.
Asked On : Thu, 7 Jun 2012