4 Pack Faraday Bags for Laptops & Phones & Radio & Car Keys,Faraday Cage for Anti-Theft Anti-Tracking, Faraday Key Fob Protector, Waterproof & Fireproof Faraday Bag, RFID Signal Blocker Bag

Good product. Does the job well.

Test the bags against several different signals and as long as the bag is sealed correctly none go out and none come in.

Works as described

The assorted sizes are handy to have. I use the largest one for my surface pro with a cover/keyboard attached to it with plenty of room left over. The second largest bag would likely fit the surface pro without any cover or keyboard. Tested it using my phone, was no ringing, and no record of a missed call.

These came in very fast! They were well packaged and actually bigger than I expected them to be! Took a picture with a water bottle and my emergency radio to show sizes. They feel quite sturdy! Very happy :)

Good proction for cell and other items

This product really works! The sizes are perfect and can easily fit all of my electronic devices. It completely blocks all signals. Highly recommend it

My phone still rings when inside. So I have to assume these really suck at blocking signals. Ill try another brand. Id give zero stars if I could.

You get 4 Pouches, with the largest pouch being able to accommodate 2 slimline laptops. i am able to protect most of my devices and then some! Tested the smallest pouch with my phone and it works --I was not able to receive calls when sealed within the pouch.

I have been concerned about too much EMF exposure, especially now with 5G WiFi. Ive tested these and they do stop signals from reaching my devices. I use these for my laptop, 2 e-readers and my phone. Very happy.