Ive just found that ringtone the say only kids can hear,just played it too my 3 kids and they said they could hear it but sometimes they do lie LOL.see what u think roud:
i heard it like a high pitched fog horn, nearly blew my fookin head off, but i can hear dog whistles, electronic cat scarers, the reversing sensors on some cars and bats as clear as a bell as well though
They had that thing on Brainiac once where it said only teenagers could hear it and they would be using it around areas where young gangs where a problem as the noise is only annoying to under 20 year olds... They played it and I could here and im over 20 i thought I was the only one but I had a few people that I forced to listen to it too and they could hear it as well, bought a dumb mosquito sonic repeller which apparently humans cant hear gave me such a headache after having it on for 2 mins... Its supposed to have to do with the bones or something inside the ear changing with age, maybe you all just have spock ears