Get your car protected.Our faraday bag provides a complete signal blocker for your vehicle key fob. This prevents thieves from picking up and relaying signals from your key, to shield against break-ins and keyless ignition theft.The larger/back pocket is for signal blocking, best for storing car key fobs. It's also can be used for pregnant women radiation protection,storing ID card, bank cards, etc.If you don't want to answer the phone, you can put the phone in the silver layer pocket of the bag and close it, then the phone will be disconnected; this bag can also block Cell Phone GPS Signal to prevent tracking, protect your privacy. Inner silver layer blocks signals, outer 680D waterproof oxford cloth black layer can be used as a normal case Customize it with an imprint of your LOGO