MONOJOYMONOJOY Faraday Pouch for Car Keys and Phones, Keyless Car Key Signal Blocker Pouch Safe Protector Large Faraday Bag RFID Anti-Theft Signal Blocking Cages Car Accessories (2 Pack)

These are perfect for what I need, I have previously had the smaller Faraday cases but they generally tear after a couple of months because they're too small for a full keyring. These are the ideal size, I can get my whole keyring in with room to spare, they're very good quality and they definitely work, it was the first thing I tried. They even have a little sewn in tab in one corner, perfect for attaching a clip to for hanging on a belt loop. I would recommend this item as it's very good value for money.

This is my third different type of faraday bag. I opted for this particular design as it looked more hardwearing then the others I had purchased in the past.The bag itself is quite large so will accommodate more than just a car key if needed but of course it won’t fit into a small pocket.Overall, for me it was perfect. Does it’s job well, fits into my coat pocket is of good quality and looks nice.Having a pack of two means they should last at least a year as with all these bags the lining seems to wear and they lose their “blocking power”

Looks like a good quality product at a good price. Blocks the key signals to the car, but I'm a little concerned with other reviews saying it stopped working after three months. I will review again should that happen.UPDATE...still works perfectly after 7 months.UPDATE... stopped working within 2 years but replaced with the same ones.

Very good as you can easily get your keys and key ring inside the pouch

I was extremely dubious when I brought these and honestly didn't expect much but I was greatly surprised, I first as a wally placed my key in the pouch and the car still opened..... It was my fault I came back in and read the instructions there's a handy flap and inside the pouch 2 compartments the front compartment isn't made to protect your car from theft/ doesn't stop the signal between the car and key but the second compartment does as it has the anti barrier material that stops the signal . I placed the key in the pouch and the car doesn't open, protecting my vehicle, its good quality abd and smart thank you so much and would definitely buy from again.

softer than others so easier to use. Have not tested efficacy

Didn't think these would be any good but I needed something larger to accommodate car key attached to other keys.Tested inside car and it could not detect the key.Not the cheapest...but they work.

I tried the TV & associated device remotes through these purses and the signals were blocked. The car central locking system signal went through them, and the smartphone sealed in them went straight to voicemail but didn't ring (as it did outside of purse). Not sure exactly what that signifies. Nice quality purses, must offer some security but not sure how much, therefore just rated 3 on value for money.