My ears are older than the rest of me
Mosquito Ringtones , i.e.ringtones that can't be heard by those over 30, such as parents and teachers.
Will could hear 16khz (age range 30 & younger). The highest range I could hear definitively was 12khz (50 & younger), and even that I could only hear once. The second time it just made my ears vibrate.
How old are your ears?
edit: broken link - I'll fix it later: http://www.freemosquitoringtones.org/
edit2: Shea & Liam could both hear what Will & I could not. We did feel the vibration or pressure, but heard no sound. Hour later, my ears still hurt.
Will could hear 16khz (age range 30 & younger). The highest range I could hear definitively was 12khz (50 & younger), and even that I could only hear once. The second time it just made my ears vibrate.
How old are your ears?
edit: broken link - I'll fix it later: http://www.freemosquitoringtones.org/
edit2: Shea & Liam could both hear what Will & I could not. We did feel the vibration or pressure, but heard no sound. Hour later, my ears still hurt.