An anonymous reader quotes a report from Ars Technica: Believers of 5G conspiracy theories have apparently been buying a $350 anti-5G USB key that -- not surprisingly -- appears to just be a regular USB stick with only 128MB of storage. As noted by the BBC today, the "5GBioShield" USB stick "was recommended by a member of Glastonbury Town Council's 5G Advisory Committee, which has called for an inquiry into 5G." The company that sells 5GBioShield claims it "is the result of the most advanced technology currently available for balancing and prevention of the devastating effects caused by non-natural electric waves, particularly (but not limited to) 5G, for all biological life forms." The product's website charges 283 British pounds for a single 5GBioShield, which converts to nearly $350. That's what it costs to get "protection for your home and family, thanks to the wearable holographic nano-layer catalyser, which can be worn or placed near to a smartphone or any other electrical, radiation or EMF emitting device." The USB stick apparently doesn't need to be plugged in to anything to work its magic. "It is always ON and working -- that's why we used quantum nano-layer technology," the company says in an FAQ. But what does the 5GBioShield actually consist of' The BBC pointed to a recent teardown by security company Pen Test Partners, which found that the device is just a USB stick with 128MB of storage. The company wrote: "When plugged in to our test machine we may have missed the bubble of 'quantum holographic catalyzer technology' appearing. The stick comes loaded with a 25 page PDF version of the material from 5GBioShield's website. It included a Q&A of distances for the "bubble" and how to know if it is working. It's an "always on" system apparently, is always working, powered or not, so no visual checks needed. A review of the stick's properties revealed nothing more than what you'd expect from a regular 128MB USB key. We weren't even sure that 128s are still in production!" The report says that the London Trading Standards has launched a probe to investigate this product. How will the company defend itself' BioShield Distribution Director Anna Grochowalska told the BBC, "We are in possession of a great deal of technical information, with plenty of back-up historical research," and "we are not authorized to fully disclose all this sensitive information to third parties, for obvious reasons."Read more of this story at Slashdot. Click here to read full news..