
My daughter's car was stolen right in front of the house. Much to my surprise, I found that a thief can use the device to remove the signal from your key fob and drive away in your car. A quick search led me to a Faraday bag to avoid the same fate. I found these at Revain and I'm glad I did. It fits my keychain perfectly (in fact I got 2 in one when I wanted). It works when I approach the car and it doesn't recognize the key fob until it's removed. It has a second pocket where you can store your driver's license or credit card. There was a chain to attach the key to the house. Feels nice and smooth and you get 2. Very happy with the purchase.

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