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I just recently was informed that their are ringtones that the aging ear cannot hear. This comes in handy for students who do not want their parents or teachers knowing they are getting text alerts. When people age they lose the ability to hear high frequency sounds. "The ring tone is a spin-off of technology that was originally meant to repel teenagers - not help them. A Welsh security company developed the tone to help shopkeepers disperse young people loitering in front of their stores while leaving adults unaffected. The company called their product the Mosquito" (Vries, 2006). Vries,Lloyd.(12 June 2006). A New Ringtone Teachers Cannot Hear. Retrieved April 1, 2010 from cbsnews.com website: http://www.cbsnews.com/stories/2006/06/12/tech/main1701359.shtml Mosquito ringtone can be downloaded for free at this website if you would like to check it out for yourself http://www.freemosquitoringtones.org/ Jocelyn Chickering email@example.com Student Teacher at Manchester Community College --- Edtech Archives, posting guidelines and other information are at: http://www.h-net.msu.edu/~edweb Please include your name, email address, and school or professional affiliation in each posting. To unsubscribe send the following command to: LISTSERV@H-NET.MSU.EDU SIGNOFF EDTECH