Blocking the Signal This RFID blocking pouch helps prevent unauthorized signal access to your car key fob and other electronic devices. Designed to protect against keyless entry theft, it shields your property by blocking unwanted signal transmission. RFID Protection The front pocket features anti-radiation material, ideal for storing ID cards, credit cards, and other sensitive items. The back pocket provides full signal blocking, perfect for car key fobs. It effectively blocks signals from phones, Wi-Fi, Bluetooth, 5G, NFC, RFID, and similar wireless technologies when devices are stored inside. Sturdy and Durable Constructed with high-quality carbon fiber textured material and dual-layer shielding technology, this Faraday pouch delivers reliable signal protection with a sleek, look. Easy to Carry Measuring 3.5 x 5.7 inches, it features a secure flap closure with elastic to fit various keychain sizes and small devices. The built-in keychain loop adds convenience, allowing you to attach keys and carry the pouch easily. Use the external hook to clip it to your jeans, belt, or backpack for hands-free portability.