
The only way to verify that RFID blocking is working with my new Zerogrid Passport Holder is to put the car keys in a pocket and close it . close it and see if the keyless entry on my car stops working. The Zerogrid Passport Holder didn't prevent my car key from communicating with my car and I was able to activate, lock and unlock my car with the key in my pocket. Repeated several times, and communication with the car and the key continued to work from the zerogrid pocket. I then tried keyless entry with the key case I bought for my car keys and the communication from the car key to the car was blocked. I don't think I would trust a Zerogrid passport holder to protect my credit cards and passport from criminals using remote RFID readers trying to steal my information.

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