RFID NFC Blocking Card | Contactless Cards Protection | No Batteries Required | Anti Theft Secure Protector for Credit/Debit/ID/Oyster Cards

How Does It Work? The RFID Blocking Card is the same size as a standard credit card and 1.2mm thick with built-in internal circuitry. This protects surrounding cards within a 2.5cm on each side. Simply place a single RFID blocking card in your wallet and when radio waves from an incoming scan pass through your wallet, the card draws power from the waves and creates a jamming signal. It doesn’t contain a battery and it doesn’t affect phone signal, bluetooth, WiFi, or any of your other phone functionalities. What Cards Does The RFID Card Block? Any card working on 13.56MHz frequency. This includes, but is not limited to: Credit Cards, Debit Cards, Identification Cards, E–Passports, Mobile Phone NFC, Key Cards/Entry Cards How can you test it The easiest way is at a self checkout at a supermarket. Your contactless card will seem invisible to the reader, or it will throw an error message.