The Origin and Use
The technology of mosquito ringtone is sourced from the “mosquito device” developed by Howard Stapleton primarily to drive away the teenagers who hang around the shops in UK. The device that Stapleton developed for Compound Security Systems emitted a sound called “teen buzz” that caused a great deal of annoyance to the teenagers or younger people. However people past the age of teenagers remained largely unaffected by this modulated 17 kHz sound.
This same technology was used to develop mosquito ringtone with the only exception that the frequency was kept constant at 17 kHz in this type of ringtone. With advancing age, people start losing gradually the normal hearing ability. This hearing impairment due to age is known as “presbycusis”. The range of audibility for a teenager is not what it is for older people. This phenomenon is utilized in mosquito ringtone as the teenagers using this ringtone in their mobiles can hear a call or get alerted by an incoming message without the elder people knowing about it.
The situation can well be comprehended in a classroom scenario where a student gets a call or a...
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