【SECURE YOUR CAR BEFORE IT'S TOO LATE】- Simply place your car key remote in the Faraday bag and you are protected. Lanpard's double-layered signal blocking Faraday bags protect your belongings from EMF, RFID and other hacking signals! You no longer have to worry about thieves amplifying your remote control signal and opening your car, effectively preventing your keyless remotes from being accessed remotely. 【RFID PROTECTION FUNCTION】 Lanpard's Faraday bag is made of premium carbon fiber textured material and two layers of shielding material, which can block phone calls, SMS, WI-FI, bluetooth, 5G, NFC signals, etc. It is suitable for all key sizes. Signal blocking bag protects your car and credit card. Simply place your car key in the bag, you will not find any response from your cars. 【IMPROVED DESIGN】 Upgraded zinc alloy hook and inner key ring. More strong and portable. Portable hook can be hung on your pants or backpack, the inner key ring ensures that you can easily take out the car key. All materials have been rigorously tested, ensuring that the Faraday bag works perfectly even after long periods of use. Reliable, high quality, handmade. 【CONVENIENCE & 2-PACK】 The size of the car key signal blocking bag is 9*14 cm. Which is easy to carry. We provide 2 medium-sized bags for you to protect your spare key or multiple vehicles in your household.