1. [Why You Need It] Protect your vehicle and personal privacy with our Faraday bags. Lanpard signal-blocking Faraday bags shield your belongings from electromagnetic fields (EMF), RFID, and other hacking signals. Effectively prevent unauthorized remote access to your keyless entry fobs and mobile devices. Safeguard your personal and financial information by blocking RFID scanners and readers from detecting your cards' signals. 2. [Multi-functional Use] Ideal for pregnant women seeking radiation protection, the bags can also securely hold ID cards, bank cards, and more. If you want to avoid phone interruptions, simply place your phone inside the bag to cut off connectivity. The bag also blocks GPS signals to protect against tracking, enhancing your privacy. 3. [Convenient and Portable] Featuring two layers made from premium carbon fiber, our signal-blocking material is designed for durability and effectiveness. The bags are waterproof and can block various signals including phone calls, SMS, Wi-Fi, Bluetooth, 5G, RFID, and NFC. They combine modern aesthetics with functional design. 4. [Set of 2 Carbon Fiber Faraday Bags for Convenience] Each Faraday cage measures 4.13 x 8.26 inches (10.5 x 21 cm), making it easy to carry. The bags can accommodate mobile phones and multiple key fobs, protecting your vehicle and devices from hackers. Suitable for smartphones up to 6.8 inches. Each package includes two spacious Faraday bags.