Car theft is on the rise. It's up 40% over the last 5 years. Surely as technology advances, cars should be getting more secure? Clearly not. This is mostly thanks to keyless entry systems on newer vehicles. Criminals using relays can scan your house, pick up the signal from your fob, then transmit it to an accomplice standing next to your vehicle. This tricks the car into thinking you're standing next to it with the fob. They can then get in and drive off. All signals in the range of 10kHz to 30GHz are blocked thanks to the special lining. Incoming electromagnetic fields are distributed throughout the mesh lining and cancelled out, meaning any electronic devices placed within the pouch will be completely cut off to the outside world.