The Faraday Key Fob Bag is designed with one purpose in mind: to protect your car from theft. With patented signal blocking technology, it creates a powerful barrier that prevents wireless signals from entering or exiting the bag. This ensures comprehensive protection against relay attacks, car theft, and unauthorized access to your vehicle. The bag is also equipped with embedded magnets on the backside, making it easy to stash on any metal surface, such as a toolbox or the underside of your car.