SECURE YOUR CAR BEFORE IT'S TOO LATE Simply place the car key fob into the Faraday bag and you're protected. Double-layer signal blocking Faraday bags protect your belongings from EMF, RFID, and other wireless signals. No more worry about thieves amplifying your fob signal and accessing your car. Effectively prevents keyless entry fobs from being remotely accessed.RFID PROTECTION FUNCTION The Faraday bag is constructed with premium carbon fiber textured material and two layers of shielding materials, which can block phone calls, SMS, Wi-Fi, Bluetooth, 5G, NFC signals, and more. It is suitable for all key fob sizes. The signal blocking pouch helps protect your car and credit cards. Simply place the car key into the bag, and you will find no response from your car.IMPROVED DESIGN Upgraded zinc alloy hook and inner key chain. More durable and portable. The portable hook can be hung on pants or a backpack. The inside key ring ensures easier access to your car key. All materials have been rigorously tested, ensuring the Faraday pouch performs effectively even after extended use. Reliable, high quality, and handmade.CONVENIENCE & 2 PACK The size of the car key signal blocking pouch is 9 x 14 cm, making it easy to carry. We provide 2 medium pouches so you can protect your spare key fob or multiple vehicles in your household.Our Faraday bags help keep your car safe by blocking signals from being sent or received by your key fob or other data-containing devices. Remove your key from the Faraday bag and signal reception is restored immediately, allowing normal usage.In addition to protecting your car keys, it can also be used to help prevent your smartwatch, credit card, and other RFID-enabled items from unauthorized scanning, helping to protect your personal and financial data.