Shields credit card, and debit card RFID chips which operate at 13.56 MHz, keeping you safe from sinister forms of identity theft. The RFID protection blocks 10 to 3600Mhz with a shielding efficiency of greater than 99.99% at an attenuation of 71 to 84 decibels. Certain, lower priority RFID chips such as hotel door access cards cannot be blocked since they operate at a much lower frequency.
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