The OffGrid® Faraday Phone Bag is a certified Military-strength product by EDEC Digital Forensics. Protects your phone and other small devices from digital interference and data theft by blocking EMF, RFID, FM Radio, GPS, Cellular, Bluetooth, and WiFi signals. Ensures devices cannot be hacked, tracked or detected when enclosed within an OffGrid® bag. Lined with multiple layers of advanced high-shielding Faraday fabric, which is lab tested and certified to shielding effectiveness standard MIL STD 188-125 (shields against High-altitude Electromagnetic Pulses).