Faraday JACKET Forensic Cell Phone Bag (4.5" x 8")The JACKET Faraday Bag 4. 5 x 8 keeps devices safe and secure by blocking Cell Signal, GPS, RFID, and WiFi, maintaining the devices integrity and preventing remote influences from accessing content. The JACKET offers >85 dB attenuation (400 MHz 40 GHz) with metal plated CYBER NC (Nickel Copper) fabric lining and a durable nylon canvas exterior. With precision stitching and a secure Velcro closure, the JACKET is designed for performance and endurance.