While health studies about the radiations that cell phones emit are still going strong, scammers sell devices that allegedly shield the electromagnetic waves.
They “guarantee” the emissions are stopped from jeopardizing your health and sell the products for an arm and a leg.
However, studies show that there is no scientific proof that these devices (mostly earpieces) reduce the exposure from cell phone emissions.
How to avoid: don’t trust their testimonials or the explanations on their websites. Ask for scientific proof, such as legal documents (certificates) that attest the veracity of it. Make sure they are not fake either - do your research.