Wisdompro RFID Key FOB Protector for Car Key Signal Blocking; WP4697 Faraday Bag for Anti-Hacking, Anti-Theft Pouch - Black (PU Leather)

Wisdompro RFID Key FOB Protector for Car Key Signal Blocking; WP4697 Faraday Bag for Anti-Hacking, Anti-Theft Pouch - Black (PU Leather)

• Specially designed and stitched to block RFID signals in the range of 10 MHz - 3 GHz
• How to Use: The faraday bag has 2 pockets and only the silver lined pocket can block signals. Please make sure that your key fob is put into the SILVER LINED POCKET and completely close the flap.
• Block Car-key FOB Signal - Keep your car's security system from getting hacked
• Size: 5.3" x 3.9" - Large enough to hold a car-key fob, a few bank cards at the same time
• With a small metal ring, it's convenient and easy to attach