Teenagers are are downloading a new ring tone called the mosquito. This ring tone can not be heard by adults because they loose their ability to hear high pitched sounds once they're 25. One of the reasons teens are getting this ring tone is so they can get messages without their teacher knowing. I went to a website below (Ochen K.) and I could hear about 17000 Hz while my Mama and Papa couldn't.
To find out what pitch you can hear and get more info visit these sights:
