1. [Comprehensive Protection]Our 4 - pack Faraday kit includes a laptop faraday bag (16.9''x14.96'')1, tablet faraday bag (13'x 10.25'')1, radio faraday bag (10.63''x 7.87'')1, cell phone faraday bag(7.87''x 4.75'). Faraday cage provides signal shielding and protection for your car keys, cash, passport, phone, laptop, bluetooth, GPS etc. 2. [ and Fireproof Design]Faraday key fob protectors are made of high quality fiberglass and shielding fabrics with a coating of inoxidizable silicone. Due to the special characteristics of the surface fabric, our Faraday bags can withstand temperatures up to 2000F degrees Fahrenheit and are waterproof. Whether it's a wet space, a rainstorm, a fire, or being touched by a hot object, Faraday Bags provide basic protection. 3. [Advanced Signal Shielding]No need to worry about your cards or car keys being stolen anymore. The Faraday bag has a signal shielding function and a 2 - layer shielding cloth all - around surround design. The Faraday bag can shield: cellular data, Bluetooth, WiFi, GPS, RFID, so that your items are in a environment and the user feels quiet. 4. [Portability and Convenience]Faraday bags for phones or laptops are lightweight and convenient, with high - quality nylon mesh stickers, can hold more items and can also be folded into a Faraday box. Whether it is a business trip, work, home, travel, it can protect the of goods anywhere, anytime, and can even be used as a daily necessities organizer bag.