[Signal Shielding] Shields any type of signal and is the best protection for remote car keys. When you are right next to the car and can't open the door even by pressing it. The buttons go through the case. Protection] Anti-tracking, anti-spy and anti-radiation. Blocks WiFi, Bluetooth, RFID, NFC, etc. signals. [HIGH QUALITY DESIGN] The Faraday case is made of high quality carbon fiber, durable and waterproof. There is a key ring inside the pouch to secure your keys. One of the pockets has a metal hook so you can attach our pouches to your belt, pants, backpack, etc. [2 Pack] Comes with 2 pockets for remote storage of your car keys and can protect extra keys in your home. Dimensions: 13 x 8.2 cm / 5.11 x 3.22 inches [Universal] The key protection signal protection box is suitable for all brands and models of car key fobs, just use our Faraday car key bag »Note: The data is all manual measurements, please allow an error of 1 to 3 cm. according to the main picture)