OMFG I THOUGHT I WAS GOING CRAZY, I HEAR THIS FROM EVERYTHING, OLD COMPUTERS REFRIGERATORS ELECTRICAL PANELS LITERALLY ANYTHING THAT HAS ELECTRICITY MAKES THAT SUPER SKULL PIERCING PITCH FREQUENCY AND HOLY CRAP IN THIS MODERN CITY ITS MAKING ME THINK IM CRAZY SINCE IM THE ONLY ONE THAT I KNOW THAT CAN HEAR IT,(reply>), ok,(reply>), Same. I agree with everything you said. I'd often ask my family if they could hear the high pitched sounds coming from electrical things but they couldn't. I thought i was going crazy,(reply>), @Stefano Fierros I hear light :),(reply>), @Jonathan Odude not when you have hearing like mine. omg. it like a migraine but in the form of sound. it will give you a migraine after awhile too.,(reply>), @Dominik Tarcsay nope, either tinnitus or they live in a place with older stuff. i have this too. its anoying.