![The Mosquito Alarm is designed to repel youth away from areas by playing noise at a frequency most adults can't hear. : r/HostileArchitecture The Mosquito Alarm is designed to repel youth away from areas by playing noise at a frequency most adults can't hear. : r/HostileArchitecture](https://i.redd.it/qchepuk2agt51.jpg)
The Mosquito Alarm is designed to repel youth away from areas by playing noise at a frequency most adults can't hear. : r/HostileArchitecture
![Dad-of-ten outraged after neighbour's 'ANTI-CHILD alarm' leaves seven-year-old daughter 'screaming in pain' - Mirror Online Dad-of-ten outraged after neighbour's 'ANTI-CHILD alarm' leaves seven-year-old daughter 'screaming in pain' - Mirror Online](https://i2-prod.mirror.co.uk/incoming/article12930918.ece/ALTERNATES/s1200c/SWNS_ALARM_ROW_11.jpg)
Dad-of-ten outraged after neighbour's 'ANTI-CHILD alarm' leaves seven-year-old daughter 'screaming in pain' - Mirror Online
![What are anti-child alarms, how do the 'mosquito' noise repellent devices work and how high-pitched are they? | The Sun What are anti-child alarms, how do the 'mosquito' noise repellent devices work and how high-pitched are they? | The Sun](https://www.thesun.co.uk/wp-content/uploads/2018/07/AD-COMPOSITE-Alarm.jpg?strip=all&quality=100&w=750&h=500&crop=1)
What are anti-child alarms, how do the 'mosquito' noise repellent devices work and how high-pitched are they? | The Sun
![Single father-of-six slams neighbour over anti-child alarm which can only be heard by under-25s | Daily Mail Online Single father-of-six slams neighbour over anti-child alarm which can only be heard by under-25s | Daily Mail Online](https://i.dailymail.co.uk/i/newpix/2018/07/16/16/4E4F786500000578-5958677-The_controversial_alarm_pictured_was_the_subject_of_a_campaign_i-a-70_1531755394125.jpg)
Single father-of-six slams neighbour over anti-child alarm which can only be heard by under-25s | Daily Mail Online
![Solar Vogel Repeller ip65 pir Bewegungs sensor Alarm lampe Detektor abschreckung Tiere Katze Hund Fuchs Schlange abweisend für Garten im Freien - AliExpress Solar Vogel Repeller ip65 pir Bewegungs sensor Alarm lampe Detektor abschreckung Tiere Katze Hund Fuchs Schlange abweisend für Garten im Freien - AliExpress](https://ae01.alicdn.com/kf/S1b148a0b97ac4f33aa36ab3a166e34aez/Solar-Vogel-Repeller-ip65-pir-Bewegungs-sensor-Alarm-lampe-Detektor-abschreckung-Tiere-Katze-Hund-Fuchs-Schlange.jpg)
Solar Vogel Repeller ip65 pir Bewegungs sensor Alarm lampe Detektor abschreckung Tiere Katze Hund Fuchs Schlange abweisend für Garten im Freien - AliExpress
![Couple who installed high-pitch 'mosquito' alarm to ward off racist teen vandals are now under investigation for noise nuisance | Daily Mail Online Couple who installed high-pitch 'mosquito' alarm to ward off racist teen vandals are now under investigation for noise nuisance | Daily Mail Online](https://i.dailymail.co.uk/i/pix/scaled/2013/06/18/article-2343706-1A608FDA000005DC-65_308x185.jpg)