5 Pack Faraday Bags for Laptops & Tablets & Phones & Car Keys, Faraday Cage with Handle, Anti-Tracking Faraday Key Fob Protector, Fireproof & Waterproof RFID Signal Blocker Faraday Pouch, EMP Bag

Well made and my cell phone signal is indeed blocked so it's a good sign...

Well I tested my phones and it did block out signals.like traces even when I pull them out it took 10secs because signals came back on my phone. Nicely made the biggest one can house two laptops. If u have plenty devices like me just have them all in the biggest bags the rest of is not needed

I recently purchased the 5-pack of faraday bags for my devices (laptop, iPad, and cell phones), and I couldn’t be more pleased with this purchase. The bags come in a variety of sizes which was perfect for protecting all my devices.The material feels high quality, and I love how easy they are to use. Each bag is a thick and well constructed, offering full protection against hacking, tracking, and signal interference. It gives me peace of mind knowing that I can easily block all signals from my devices when I don’t need them to be accessed. The bags are lightweight and foldable, and fit well inside a backpack.I tested them by placing my phone in one and calling and the phone was completely blocked from receiving calls, messages or WiFi connection.Overall a good investment for anyone who values privacy, security or just wants to avoid unwanted tracking.

They work great!I use them when I got to sleep. I have two phones and I make sure they are placed in the bags. I tried calling the phones and they didnt ring inside the sealed bag.

Absolutely blocks phones calls, even when left open. I had tried Armadillo Pro-Tec and Samfolk Faraday pouch. With both of those I could ring the phone whilst in the closed pouch. These ones however, are so good that I can leave them open with the phone in and I still can't ring it. Completely block phone, wifi and fobs, unlike the others