Pulling apart a £339 ($416) anti-5G USB stick

Trading Standards officers are seeking to halt sales of a device that has been claimed to offer protection against the supposed dangers of 5G via use of quantum technology.

Cyber-security experts say the £339 5GBioShield appears to no more than a basic USB drive.

"We consider it to be a scam," Stephen Knight, operations director for London Trading Standards told the BBC.

His said his team is working with City of London Police's Action Fraud squad.

They are seeking a court order to take down the company's website.

"People who are vulnerable need protection from this kind of unscrupulous trading," he added.