If your speakers can reproduce it at an audible volume and your ears can hear it, it sounds like the auditory equivalent of a brain haemorrhage. I occasionally pick tones like this up when I'm at home and there are vans parked a street away running their engines. Very irritating.
Now at 15kHz tone will sound as if your head is about to asplode.
Now at 15kHz tone will sound as if your head is about to asplode.