If they don’t have independent test reports from laboratories certified in testing SAR (Specific Absorption Rate) and tests for signal strength to ensure the product doesn’t simply block the signal, how can you trust their claims?

If you’re thinking of buying a phone case with ‘radiation blocking material’ believing it will reduce radiation, you should know this: Phones have an automatic power control, such cases act as shields and make the phone work harder, transmitting more power, increasing heat and reducing battery life, The incoming signal to the phone will also be reduced so your phone may not work in areas of poor signal.