• PROTECT YOUR PRIVACY: The faraday bag protects chip technology "smart-cards" from hackers' RFID readers in the range of 10 kHz-30 GHz.
• SIGNAL BLOCKING BAG: Inner layer blocks signals, outer leather black layer can be used as a normal case make sure block signal.
• 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.
• Size: 19.7*10.1*1.5cm / 7.8*3.9*0.6inches.
  
• FARADAY BAG KEY FOB: This cell phone faraday bag can block GPS and car-key signal to prevent tracking, protect your privacy, ensure your car's security system from getting hacked.

Dimensions: 19.7*10.1*1.5cm / 7.8*3.9*0.6inches.