When I found out that thieves can use a special signal amplifier between your car and the key, that makes the car think the key is next to it and it will unlock. I searched for a Faraday box.
This box is perfect! It is stylish and very well made. It can sit out as a decorative piece and look great.
I put the box to the test....With my keys in the faraday box I stood next to my car and it would not unlock. Next test...Sitting in the car with my keys in the box. The box passed with flying colors. My car did not even detect my keys were in the car.
I am able to put my two sets of keys and my iPhone in it. My iPhone X has to be turned at an angle to fit. The same with my iPhone 8. Only one phone will fit of this size. If you are wanting to put your phone in it as well as your keys be certain to measure your phone and compare to the box's dimensions.
Unfortunately I could not test the credit card cases because I do not have the means to, but it is definitely an added bonus to the box.
Overall I give this box a 5 star recommendation. Definitely an extremely smart investment.