HodufyFaraday Bag for Phones, Tablet Bag, Signal Isolation Bag, Fireproof Shield Cage for Tracking, Hacking, Travel, EMP Protection Radiation - Shields NFC/WiFi/Bluetooth for Tablets, Phones,Key Fob

I was a little skeptical at first. I placed my mobile phone in the bag and asked someone to call me - nothing - it is as if my phone was not in service. Perfect.This bag does not block sound. I set a recording app on and spoke into the app. I then left the recording app on and place my phone in the bag, then spoke again once the phone was in the bag and velcro opening was sealed. My voice on the recording app was slightly muffled, but you could clearly hear what was being said.

worked when i put my phone it the bag. plus had extra fold to seal the opening. all round i would rate this as better than most faraday bags i have seen

I've bought about 6 of these types of blockers over the years. Most have ended up being too small...or when I test it, it didn't entirely work.This is the first bag that I'm happy with. It's both larger and it works! I put my phone in it to block tracking. I have a large phone, but I could get probably 6 of my phones in this bag. I also tested it 3 times and it's completely blocked. Great product.

The Faraday Bag is a sturdy, attractive material that has a perfect double fold closure design. It is also a nice size. It can hold a tablet or several cell phones. Perfect for a secret meeting of several people. LOL

I purchased this Faraday bag for a solar storm that was supposed to screw up cell devices. The solar storm ended up not being as powerful as predicted so I didn't need it.This bag is about the size of a sheet of copy paper and is lined with a foil type material.I can fit about 4-5 cell phones in it depending on their size.I am not sure if it works like it says, but, better safe than sorry.I am keeping it and maybe look into a bigger one for laptops.I'd say based on the material it is worth the money, and I'd rather have it and not use it, than not have it and need to use it.