Features 1.  carbon fiber car keypack signal shielding cover effectively prevents your keyless FOB from being remotely accessed. Don't worry about the thief amplifying your FOB signal and opening the car again. 2. Material: The keycase is made of high-quality carbon fiber and dual military grade RF shielding cloth. Placing the key in a closed bag will prevent your car key signal from being contacted by thieves. 3. Shield pocket: A shield pocket to prevent scanning from blocking the car remote control key. 4. Simplicity and practicality: The keycase is simple and practical, with a moderate size, personalized but not flashy. It is seamlessly glued with Velcro, and the keyring seamlessly links the car key. The key can be easily exchanged inside and outside the keycase, protecting your driving safety. 5. Maintenance method: Wash with clean water or wipe with a small amount of detergent. Do not dry clean, expose to sunlight, iron, or bleach. Specification Material: Carbon Fiber Color: Black Size: 14 x 9 x 1 cm Weight: 50 g Package Include: 1x Signal Blocking Key Fob Protector