Secure your devices and personal data with this Signal barrier Box and Car Key Bags, effectively blocking multiple signals to prevent theft and data leakage. Features: The signal barrier box is entirely covered with a signal barrier fabric, comprehensively preventing signal leakage. It can block various signals such as car key signals, Bluetooth, WIFI, Positioning System, GSM calls, and NFC, ensuring maximum security for your devices. Premium Carbon Fiber Construction: Built with carbon fiber shell and an inner core of metal-blended shielding fiber, this product delivers outstanding durability and structural strength. The carbon fiber exterior enhances its sleek, modern look, while the inner material boosts overall performance and protection. RFID Protection: By blocking RFID signals from being detected by scanners and readers, it securityguards your personal and financial data. This helps you avoid the risk of data theft. Versatile Usage: Ideal for protecting your car keys from signal - based theft, it also serves as a great solution for other devices that need signal isolation. You can use it to secure your electronic gadgets in various situations. Peace of Mind: With this signal barrier, you no longer have to worry about being tracked, having your data stolen, or suffering from harmful radiation. Specifications: Material: Carbon Fiber Color: Black Small Signal barrier Box Size(LxWxH): 11.5cm x 9cm x 6.2cm Large Signal barrier Box Size(LxWxH): 17cm x 12cm x 9cm Car Key Bag Size(LxW): 13cm x 18cm Package Contents: 1 x Signal barrier Box 2 x Car Key Bags Please Note: Due to manual measurement, there might be a tolerance in the product size. Due to the lighting effects and shooting angles, the color of the item and that shown in the