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2008 article. Correctly I have also recenter news but always the same story! They say the Mosquito sound is audible until 25 years old?!

The elderly in particular use a cat-deterrent in their garden. It is a small apparatus with a speaker attached to it. It produces a high-pitched bleep of more than a 100 decibel. The sound is mostly only audible for children, youngsters and people with ears that are still good. Many...

Tomorrow (Thursday) I will write a list of problems that children have had with animal deterrents. Not the Mosquito, just cat deterrents. It will go to a report to the EU. I have several cases from England. Can you send me any more? If you send it in in Dutch it will be quicker for you -...

Dutch website: http://www.pieptonen.nl

When I hear the sound of a mosquito that loiterers are chased away I stay still hear the tone for an hour. How can this be? You've also give cat deterrent that 130 decibels of volume (animal chaser) also sounds I can not resist. Does anyone have more information? This message was translated from...