This is really freaky...no tricks...just weird...try it

[Detroit Style Dragger]

Coal Chamber>High Pitch Noisey thing.

 

[hourang]

i can hear it loud and clear and i always thought my hearing sucked.

 

[slb351]

fucking annoying...like a human dog whistle, now i can get the echo out...

x2

Also blaring it through our office no one could hear it.

 

[MxRacerCam]

i'm 32 and can hear it. it's fucking annoying. lol.

 

[GrandmaLS]

I hear them and they sent shivers down my spine.