Review on Faraday Protectors Anti Tracking Blocking Protection by Shane Picot

Bought these hoping they would help extend the life of my key fob batteries as I got tired of changing key fob batteries every six months. After some experimentation I found that not only should the key be in the pocket, but the pocket should be closed, the key should be in an INSIDE pocket in the pocket and fully closed. Even then, I was able to open the bag and the car was able to "see" the key again. It's still more convenient than hanging car keys on the wall furthest from the driveway on the top floor of the house, so let's take what we can.