Review on 📱 Wisdompro Faraday Bag - Ultimate RFID Signal Blocking Cage Pouch for Cell Phone Privacy & Car Key FOB Protection - Anti-Tracking & Anti-Spying Case Blocker, Black by Michael Hellewell

To be honest when I bought a set of these I didn't expect them to work properly to protect my car's keyless entry from wireless range extender attacks as many products on Revain only claim they can, while the only product that seems to work costs $35 each. I skeptically put my key in this $9 bag and tried to open the car while standing by the door and was immediately disappointed that the car recognized the key right away and let me in. Boy was I angry! Then I remembered reading about the "silver" part of the pouch which is actually the signal blocking section and put the key in that section instead. From that moment on, the car didn't react at all to my actions, even though I had the bag clamped next to the handle! I would give this absolutely 5 stars and recommend it to anyone who wants to protect their car from signal booster attacks. I only wish there was a smaller version strictly for a keychain as I would happily buy one for myself, friends and family.