You may have all already heard about this but I just heard about it yesterday. There is a ringtone that you can purchase for your cellphone that only young people can hear. Before you start laughing and thinking that I have lost my mind, let me explain. This ringtone is a high pitched ringing sound. I did some reading about it on the internet and saw that the older a person gets, the less they can hear really high pitched sounds. Kids are purchasing this ringtone so that they can leave their phone on while in school and get texts etc, and the teacher can't hear it, (usually). A girl at my work had it on her phone and 5 of us could hear it and 2 could not. My boss and good friend Deirdre couldn't hear it until she got it right in her ear. I laughed when she realized that she couldn't hear it like we all could. I wasn't laughing at her, just at the face she made, because she was the one who started all of the talk about it. It was priceless. (I love you Deirdre:) )
Having said all that, see if you can hear it. This is the easiest website to use, that I have found, to hear it.
Try to see if you can hear it without turning your speakers way up. I think everyone can hear it if you turn them up loud enough. Ringtone 2 is easier to hear. I am anxious to see if you can hear it mom! (Love you mom! :)