DESCRIPTION The Expanded Faraday backpack is a comprehensive solution that offers a combination of features to enhance functionality and provide peace of mind. Utilizing cutting-edge signal blocking Faraday technology, it swiftly neutralizes wireless communication signals, effectively disconnecting and safeguarding your devices from potential unseen threats. With its waterproof capabilities, it offers an added layer of security, ensuring that your valuable belongings remain dry and shielded in any challenging environment. The backpack comes with a removable 2.5-liter Dry Faraday bag, providing an expandable and versatile storage solution for additional protection. Instantly Block: Cellular, WiFi, Bluetooth, GPS, RFID, NFC, Satellite, Navigation, EMP, Solar Flare, Key Fob and EMF Radiation What’s Included: Expanded Waterproof Faraday Backpack, 2.5 liter Faraday Dry Bag KEY FEATURES BACKPACK Main compartment is an embedded patented Silent Pocket® Faraday cage Roll down and clip closure (seal, roll three times and secure) Adjustable ergonomic backpack straps RFID-blocking YKK® water resistant zippered pockets Waterproof RF welded construction Submersible for up to 30 minutes up to 10 feet External MOLLE loop for attaching water bottle, flashlight, etc 2.5 L DRY BAG Main compartment is an embedded patented Silent Pocket® Faraday cage Roll down and clip closure (seal, roll three times and secure) Adjustable and detachable strap for carrying Waterproof RF welded construction Lightweight and packable Great for: Travel, Outdoor adventures, multiple devices SPECIFICATIONS Materials, Trims & Dimensions BACKPACK: Exterior: 420D Waterproof Nylon Lining: Multishield® Faraday Shielding Material Hardware: Duraflex® UTX buckles External: 18 x 11.8 x 7.08 in (46 x 30 x 18 cm) Internal Use: 17.7 x 11.8 x 6.3 in (45 x 30 x 16 cm) Volume: 20 liters Weight: 3.04 lbs (1.38 kgs) 2.5 LITER: Exterior: 400D Nylon Ripstop Lining: Multishield® Faraday Shielding Material Hardware: Duraflex® UTX buckles External: 9 x 4.75 x 4.75 in (23 x 12 x 12 cm) Internal Use: 8.25 x 4.75 x 4.75 in (21 x 12 x 12 cm) Strap Length: 55 in (139.7 cm) Weight: .56 lbs (.25 kgs) FARADAY TECHNOLOGY The main compartment of these bags is a Faraday cage and is rated to the following specifications: Silent Pocket® Faraday Technology Instantly Blocks: Silent Pocket® with Multishield® (Faraday Shielding Material) is MIL-STD-188-125-2 compliant, and exceeds IEEE 299-2006 (1 - 40GHz) standards. (100,000:1 reduction, see testing page here ) Blocks 100 dB+ Cellular, WiFi, Bluetooth, GPS, RFID, NFC, EMP, and EMF Radiation Blocks CDMA, GSM, DCS, PHS, 3G, 4G, 5G, LTE Blocks WiFi (2.4 - 5 GHz), Bluetooth (2.4 GHz), and GPS (1-2 GHz) Blocks RFID and NFC @ 13.56 MHz Shields against EMP, HEMP, CME, Solar Flare, and static shock Blocks Carrier, hardware, and OS agnostics