Make & Model - Armourcard
Dimensions - 3.4 x 2.1 x 0.1 in
MSRP - $50
URL - http://www.armourcard.com
Notes - Unlike the other products in this guide, which offer passive shielding protection, the Armourcard is an active countermeasure. Credit card-sized, you place it in your wallet amongst your other cards. It stays in standby mode until it detects an RFID or NFC reader, then it will jam the high-frequency RFID signals. The Armourcard can be temporarily deactivated to allow you to use a contactless credit card — or simply pull out the card and keep the Armourcard away from the reader. One item to note is that the device uses an internal battery that cannot be replaced, so once it is depleted you will need to purchase a new Armourcard. This is quite unfortunate; the manufacturer explained that they use a special battery and design to keep the device as slim as possible. The battery is expected to last at least 18 to 24 months.