A gadget aimed at stopping teens hanging about outside shops could be scrapped, because campaigners say they're not fair on kids.
The gadget - called a mosquito - sends out high-pitched sound waves which can usually only be heard by young people.
They're used to try and stop bad behaviour, and there are currently around 3,500 in use across the country.
But campaigners say they should be scrapped as they're not a fair way to treat children.
Younger people are affected more because your hearing usually gets worse as you age, meaning you can't hear high-pitched noises as well.
Sir Al Aynsley-Green, Children's Commissioner for England, is leading the "Buzz Off" campaign against the mosquitoes.
He said: "These devices are indiscriminate and target all children and young people, including babies, regardless of whether they are behaving or misbehaving."
Meanwhile in Scotland, work to get mosquitoes, sometime called "teen tormentors", banned has been under way since last year.
Scotland's Commissioner for Children and Young People has been busy raising the issue with the Scottish government, the police, and supermarkets.
The commissioner, and the Scottish Youth Parliament, say they are fully supporting the new campaign to stop them being used.