1、Signal Blocking: Our key fob bag effectively blocks various signals, including radiation, demagnetization, spying, and communication signals such as calls, SMS, WiFi, 4G, 5G, Bluetooth, RFID, and NFC. It ensures your safety. 2、Smart Card Protection: When using smart cards, hackers can try to gain access to your card information by getting close to you. By placing your card inside the inner compartment of our bag, they will be unable to read any information. 3、Radiation Protection: Our key fob protector provides excellent radiation protection, ensuring your well being. By placing your ID card, bank card, IC card, and more inside the bag, you can prevent magnetic loss and information leakage. 4、Dual Layer Design: Our bag features a dual layer design, with an inner blocking layer and an outer regular storage layer. You can choose according to your needs. It can accommodate items with dimension not exceeding 11x7x2cm. 5、Portable: Our pouch provides a smooth touch. The inner shielding layer has excellent sealing and stable connections. As long as the device fits within the bag's dimension, it will be effectively blocked. Lightweight and compact design makes it easy to carry in your hand or store it in a bag. It is perfect for home, office, car, or travel use. 1 x Key Fob Bag Item Type: Key Fob BagMaterial: Carbon fiberSignal Isolation Type: Physical BlockingLayers: Two Layers (Inner And Outer)Compatible Devices: Digital Devices With Dimension Not Exceeding Approx. 11x7x2cm / 4.3x 2.8x 0.8inClosure Method: Hook And Loop Fastener