Faraday Cage EMP BLACKOUT Bags Premium Ultra Thick 3pc Prepping Kit Extra Large 15" X 18" Laptops Tablets Smartphones Hard Drives

Purchased these for some larger items and they are solid. Very thick, with a nice seal, must make sure after you seal them up you fold over the seal and use clips to hold it together, this adds an extra layer of contact.

I have a laptop that seems to be compromised. I can get it cleaned up and leave it overnight on the power cord. and then it seems something is "wrong" again. So I've decided to use one of these bags to store it overnight instead of leaving it out overnight. This seems to have discouraged whomever it is that gets into my computer. and even if this is all just imaginary on my part, I'd rather have the peace of mind knowing that any unauthorized entrance is blocked. and who knows for sure what's going on if you're not a computer wiz. This bag puts a stop to all that.You get 3 of them, which I think is a pretty good deal! Thanks for offering this peace of mind!

First, kudos to EMP Defender. Had some kind of snafu on shipping. USPS said they delivered but the package never showed up. But EMP Defender made it right and sent out another set of bags immediately. My thanks for that!! Bags seem pretty thick and bigger that I was expecting. I tried putting my cell phone in one and calling it. It did ring in the first bag I tested but the other two blocked the signal. I had planned on nesting these inside ammo cans anyway so I'm comfortable they will do the job. I will be buying more!

Lots of room in each of the 3 bags.

We’ll see how it holds up if there is ever an EMP that goes off.

Good & thick,yes. Will they stop EMP with their zip seals, not sure. Read about how careful you have to surround products to be safe. If you believe the zip lock closure is not an issue and you can get around the price, then go for them

Received these bags and tested them. Appear to be aluminized plastic, seem pretty sturdy.First, took a VHF Handy-Talkie (HT) and put it in the bag, sealed it carefully. Then took another HT and talked, heard my own voice coming clearly from the bag. Fail at VHF.Then I took my phone, connected to WiFi and my Bluetooth headset. STarted Pandora, verified I could hear the music, and then put the phone in the bag and carefully sealed it. Phone continued to play music over the headset as long as I left it in the bag.Then started WiFi analyzer on phone and held all 5 bags between the phone and a high-power WiFi access point. There was no evidence of attenuation of the signal. The bags did not seem to have any effect at all on the signal.Strongly not recommended.

Quality, will workout well.