This Army Camouflage Protective Anti-Radiation Anti-tracking Anti-spying GPS Rfid Signal Blocking Pouch Case Bag for 3-6 inches cell phone,have 3 basic functions: Anti-radiation, this bag can prevent you from being damaged by the wave radiation; Anti-degaussing, when you put your ID card, bank cards such as IC Magnetism card into the bag, it can avoid lost and information leak; Anti-signal, with this function, it prevent people from being tracked and if you don't want to answer the phone, you can put the phone in the bag,then the phone will tell 'Calls cannot be connected'. BLOCK CAR-KEY FOB SIGNAL - Keep your car's security system from getting hacked. Protects your personal and financial data by blocking RFID scanners & readers from detecting your cards' RFID signals. Don't get hacked! Hackers work hard to steal these things - protect yourself! This bag is a MUST for the modern lifestyle. Package included: signal blocker bag x 1; Free Tekit® cleaning cloth is included