 Effectively prevent car theft. This item built-in signal isolation Faraday cage lining keeps the car safe and prevents RFID, NFC, Bluetooth, GPS / SatNav networks, 2, 3 and 4G mobile phones and WiFi connections, blocking your car keys from all frequency signals being sent or received .
 Double pocket design. Provide a complete signal barrier for your car key chain. This prevents thieves from picking up and transmitting signals from the key to prevent intrusion and keyless ignition theft. The inner layer completely blocks the signal and puts the Fob, The outer layer reduces the signal, and can put bank cards, door cards, and small smart devices.
 Protect bank cards and electronic devices. Block electromagnetic signals to prevent accidental data loss and damage, and prevent thieves from using high-tech means to steal personal information. Note: The car Fob is placed on the inner layer to prevent the signal from being completely shielded.
 Durable high-grade packaging. 2 PU anti-theft Faraday bag, twill weave carbon fiber pattern, red and black stitching, stylish and durable, with excellent touch.
 Product Size:5.513.94inchs, pack of 2. Applicable to all car manufacturers and FOB designs, including Land Rover Range Rover, Volkswagen, Toyota, Lamborghini, Ferrari, BMW, Maserati, Seat, Lotus, McLaren, Audi, Nissan, Honda, Ford, Mercedes, Alfa Romeo, Skoda, Bentley, Volvo and more.

Prouducts Features:
Products Name: Car Key Signal Blocker / Faraday Cage
Product Material: Plain Weave Conductive Cloth, Carbon Fiber Textured Surface
Number of Pockets: 2
Product Size: 14*10cm/5.51*3.94inchs (Manual measurement will have an error of ±0.5)
Fastener: Hook & Loop
Signal Blocking: Yes
Shielding frequency: 10kHz-30GHz
Shielding effect: Effectively shielding electromagnetic radiation, the shielding value reaches 99.9999 (%)
Good conductivity and shielding effect
Good heat transfer performance
good ductility
Easy extrusion processing
Good corrosion resistance and weather resistance
Good anti-friction performance, anti-friction times up to 5,000,000 times
Compatible Models: Fit for Mercedes Audi Ford BMW VW Peugeot Citroen Range Rover, Volkswagen, Alfa Romeo, Skoda, Ford, Toyota, Seat, Nissan, Honda, Volvo and locks signal of many more

The importance of using this product:
The means of car theft in the news is full of tricks. Even if it is parked in a place with surveillance, the car keys will be inseparable and will be stolen. Why?

The modern keyless buckle carries an identification chip that picks up the radio signal from the car. The vehicle recognizes the key and unlocks the door when the vehicle is in range. The keyless ignition system works in the same way – when the key fob is detected in the car, the car can be started.

Criminals can take advantage of this through wireless relay attacks. Using the RF relay booster, the key card signal can be picked up and then transmitted to induce the car to believe that a key fob is present. This allows the cabin or trunk to enter and be stolen – and in the case of a keyless ignition system, the vehicle itself is stolen.