Mission Darkness Non-Window Faraday Bag for Phones - Device Shielding for Law Enforcement, Military, Executive Privacy, Travel & Data Security, Anti-Hacking & Anti-Tracking Assurance Do not compromise your shielding with knock-off bags! The only authorized Amazon seller comes from the name "MOS Equipment." Military-grade faraday bag designed for law enforcement forensic investigators. Shields cell phones, GPS units, electronic toll collection transponders (like E-ZPass), keyfobs, or other similar size devices from ALL wireless signals. EMI shielding & RFI shielding. Two layers of high-shielding fabric on all sides with dual paired seam construction. Used for forensics, military, executive travel, personal security, EMP protection, and solar flare protection. 100% shielding of WiFi (2.4 & 5GHz), Bluetooth, cell signals (4G LTE+), GPS, RFID, and radio signals with 60-80dB average attenuation. Outer dimensions: 9.75" x 9.5" | Inner usage dimensions: 5.5" x 9" | Double roll and Velcro closure. Every bag is easily brandable with the closable pocket on back to place company/agency information. Uniquely serialized for asset tracking. High-grade water-resistant ballistic nylon outer materials.