RFID signal blocking bag is a structure that blocks the passage of radio signals. The faraday pouch is durable and longer-lasting. There are outside and inside coating that is not rigid, so the bag is very flexible. Storing your car key in a defender RFID blocking bag lined with layers of metallic material is the way to foil them and keep your car safe, especially by blocking the signal. RFID blocking pouch makes the criminal never drive off in your vehicle. In addition to reducing radiation to protect health, this RFID signal blocking key bag can also block mobile phone signals, SMS, Wi-Fi, 4G, NFC and Bluetooth signals, protect your privacy and prevent tracking. Besides, the signal pouch also can be used for storing ID cards, bank cards, credit cards to prevent being stolen by others. No need to be disturbed while sleeping.