PROTECT YOUR CAR - Your signal can be hacked from your fob if you have keyless entry on your car and a carjacker can steal your car without you knowing it, but this faraday bag will stop the signals from being hacked. WATER RESISTANT - Not only does our bag stand up against fire, but it's also highly water resistant just in case it gets wet for any reason. CONVENIENT TO USE - Putting ID card, bank card such as IC magnetism card into the faraday bag, it can avoid magnetism lost and info leak. LARGE CAPACITY - 9.8"X11".fits tablets, cell phones, radios, GPS units, key chain attachment, it’s portable and easy to carry. SUPER PROTECTION - Featured with high quality non-itchy silicone coated fiberglass and super shielding metallic fiber, provides signal blocking functions as well as stands up the temperature up to 1832?(1000?).