The Paladin Blocker Card protects credit cards, passports, and other RFID and NFC-enabled cards from identity and data theft. A jammer built into the card creates an electromagnetic shield to block signals from illegal scanners and readers. Save yourself the expense of expensive RFID wallets and NFC protective cases. The Paladin Blocker Card is the simplest and most cost-effective solution for preventing identity and data theft and, thanks to its credit card format, fits in any wallet. Simply slip the card into your wallet and enjoy instant protection.