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The Mosquito™ anti-loitering device - originally designed to disperse anti-social gatherings of loitering youth by emitting an annoying sound that only those between 13 and 25 could hear – can now be heard by people of all age groups. The latest version of the full-featured anti-loitering device – the Mosquito MK4 – comes with a new setting that emits a harmless, but highly annoying sound that people of all ages can hear. This comes in response to a growing demand from shop keepers and other organizations for a loitering deterrent that can disperse not only loitering youth, but also anti-social adults, without singling out any specific age groups.

The Mosquito was originally designed to emit an unpleasant but benign high-pitched sound that only young people can hear. This noise is not audible to older people due to Presbycusis - an age related hearing loss which gradually happens to all people and prevents them from hearing high frequencies as they get older. Presbycusis first affects the highest frequencies of 18 to 20 kHz, which are most acutely heard by young persons within a range of 15 – 20 meters. These are the frequencies that the original Mosquito uses to produce its unpleasant sound and discourage young people of approximate ages 13 – 25 from gathering and loitering in any area where the device has been installed.

The new MK4 model still emits the original Mosquito sound that typically can be heard by young people only, but also offers another setting for a sound that can be heard by people of all ages.

The way the Mosquito works is simple: the device is installed in areas where loitering, vandalism, graffiti or other anti-social behavior occurs. The device is activated only when problems occur, such as at night time, using a timer, motion detector or remote control. When activated, the device emits a harmless sound that is highly annoying, encouraging anyone who hears it to leave the area within a few minutes.

"Our customers rave about the Mosquito," says Michael Gibson, President of Moving Sound Technologies Inc., the North American distributor for the product. "We've had many people tell us that the Mosquito is amazing, and that it solves their loitering problems instantly and without confrontation. Even people who were skeptical of the product in the beginning told us they were amazed at how well the Mosquito was working."

The Mosquito has been the subject of controversy in relation to Human Rights, with opponents speculating that the device may discriminate against young people by emitting a sound that only youth can hear. The new model MK4 eliminates these concerns by offering a sound setting that can be heard by people of all age groups.

The Mosquito is distributed in North America by Moving Sound Technologies Inc. The company has sold the device to shopping centers, convenience stores, municipalities, school districts, property management companies and other organizations.

The Mosquito has been featured in numerous media outlets, including The Associated Press, BBC, CNN, FOX, CBS, CBC, Global TV, The New York Post, The Washington Post, Chicago Tribune, MacLean's, The Vancouver Sun, The Province, National Post, CKNW and many more.

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  • SHAUN MORRIS, Security Manager Northern Property, Yellowknife, NT

    The Mosquito works great for us, Our problem with panhandlers & homeless people hanging out has dramatically improved since we installed the mosquito.

    We left it on full time during business hours for the first few weeks and after that we were able to turn it off and just use it periodically as needed.

  • Carmen Ramirez, Park Avenue Enterprises LLC, New York, NY

    "It was amazing! Immediately the Mosquito effectively cleared out the loitering teens from the troubled area without hassle or confrontation."

  • Wade Rohloff, Graphic Safety, Hobbs, NM

    "The mosquito worked perfectly last night. I got it hooked up just in time for some kids to show up and make a lot of noise. After I turned it on they began complaining and left shortly thereafter. This thing is amazing."

  • Sarah Ward, PC 1623

    "Regarding the Mosquito apparatus that we have recently been using in our area, this is just a note to say that we have been extremely pleased with it.

    We have also had a positive reaction regarding its use from members of the public. In short, it has been an all-round success."

  • Lincolnshire Police

    "It is still presently sited at an old folks complex and is giving them a long awaited respite from ASB."

    Colin Hill PC 879
    Lincolnshire Police
    ASB Officer - South Holland District Council

  • David Meade, Millennium Place Primary Condominium, Boston, MA

    "The Mosquito has been effective. It has been implemented with other low echelon security measures and the results have been absolutely amazing. If the comparison prior to the mosquito install is made to present, we have seen a 95% to 98% decrease in activity and incidents in the stairwell."

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