Let me start by saying these Faraday bags are a GAME-CHANGER for anyone serious about digital security. I've been using the 4-pack set for three months now, and it's become my daily armor against signal theft and privacy invasion.

The laptop-sized pouch fits my 15" MacBook Pro perfectly, while the phone pouch swallows my bulky iPhone with a case. What surprised me most? How INSTANTLY signals get blocked - one second my phone has full bars, the next it's in complete isolation when zipped up. The velcro seal adds an extra layer of security that actually works.

Real-life MVP moment: During a business trip, I stored my key fob in the medium pouch while dining downtown. Came back to find three suspicious cars circling the parking lot - later learned they were likely relay attack thieves. My car? Untouched while others got hit. That alone justified the purchase.

The fireproof claim got tested accidentally when I left the phone pouch too close to a space heater (oops!). While the exterior got warm, contents stayed safe and cool. The silicone coating makes them surprisingly durable - mine have survived being stuffed in backpacks, dropped on concrete, and even an accidental coffee spill.

PRO TIP: Use the radio-sized pouch for credit cards with RFID chips. I keep all mine there after catching someone attempting to scan wallets at a crowded convention.

Only gripe? The laptop bag could use a handle or strap for easier carrying. When folded, all four pouches stack neatly about the size of a hardcover book - perfect for travel organization.

Final verdict: At this price point for four quality Faraday cages, it's absolute peace of mind in pouch form. Whether you're protecting car keys from relay attacks or securing sensitive devices during travel, this set delivers military-grade protection with everyday convenience.