Adult-proof “mosquito” ringtone mp3
I’m willing to believe some people can’t hear the Mosquito ringtone that buzzes at 17 KHz. But play this mp3 and let me know if you really can’t hear it but your kids can. I’m 44 and despite 25 years of too-loud music I can hear it just fine. It’s really annoying. It sounds like an old cathode ray TV tube warming up, but more painful. I think the “grownups can’t hear it” claim is exaggerated.