T he Teen Buzz ultrasonic ringtones were created by teenagers so that they could be alerted to incoming text messages or calls on their cell phones without nearby adults becoming aware of it. These "secret ringtones" take advantage of the fact that as people age, they lose some of their hearing sensitivity, especially in the higher frequencies. So a high-frequency tone that is at the edge of audibility for most teenagers will be inaudible to many adults over age 20, and to most adults over the age of The tones are not, strictly speaking, ultrasonic, because they can be heard by normal, healthy young people, but they are sometimes called "ultrasonic" ringtones because they are above the frequency range of hearing for most adults. Teen Buzz ultrasonic ringtones may range from 10 to 20 kilohertz kHz ;
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Silent Teen Buzz Ultrasonic Ringtones and the Mosquito Tone
As year-old Eddie Holder sprinted from his apartment for school one recent morning, he held his hand to one ear to block out a shrill, piercing noise. The sound was coming from a wall-mounted box, but not everyone can hear it. The device, called the Mosquito , is audible only to teens and young adults and was installed outside the building to drive away loiterers. The gadget made its debut in the United States last year after infuriating civil liberties groups when it was first sold overseas.
Teens Turn 'Repeller' into Adult-Proof Ringtone
What would you do if the children playing outside the front of your house were behaving badly? What if you blamed them for damaging your car or firing airgun pellets at your dog? Would you go out and remonstrate with them, talk to their parents, call the local Neighbourhood Policing Team, or install a high-pitched alarm that only younglings can hear to scare away the loitering tearaways? The last is exactly what Scott Smith, 43, a Royal Mail manager from Royton, Greater Manchester, and his partner, Andrea Riley, 39, have done after claiming they endured months of antisocial behaviour, vandalism, racist abuse and even airgun attacks from local children on their suburban street near Oldham. Our dog got hurt.
The Mosquito or Mosquito alarm is a machine used to deter loitering by emitting sound at high frequency. In some versions, it is intentionally tuned to be heard primarily by younger people. The devices have attracted controversy on the basis of human rights and discrimination concerns. Nicknamed "Mosquito" for the buzzing sound it plays, the device is marketed as a safety and security tool for preventing youths from congregating in specific areas.