Review on Protect Your Car Key Fob Signal with 🚗 MONOJOY Faraday Bag: Red Key Pouch for Effective Signal Blocking by Jay Matlock

This works effectively if you actually close it properly, because even if it's zipped up, if both pieces aren't snug, the signal can always still flow. This thing is really really big, and for me personally it's bigger than the photos. It fits in my Toyota smart key with a little more room. If you wear tight pants, this is not for you as they take up a lot of space in your bag. When it was warm and I wore cargo shorts I carried them with me, but these days I just put my keychain there at night as it's too big to keep in my pocket. In fact, they could make it half as thin if they used other materials, and then it would be the right size to carry in your pocket.