Unauthorized access to your vehicle using key fob signal amplification is a significant threat. Using signal amplifiers, criminals can boost or imitate the key fob signal, allowing them to enter your vehicle without physical force. LOCKER's Faraday Bag for Keyfobs is a high-quality Faraday bag designed to protect vehicles by blocking the key fob signal from communicating with the vehicle. Suitable for all smart keys and cards from all manufacturers: Keyless-Go, Smart-Key, PKES, Advanced Key, Smart Entry, and more. The outer layer is made of genuine leather, and the interior has two layers of metallized shielding fabric and one layer of metallized mesh on each side, ensuring durability. There's a regular pocket on the back for the key when protection isn't needed. The case is easy to open with one hand thanks to the “spring” clasp. The Faraday case works by shielding “always-on” key fobs from radio frequency signals, ensuring the device cannot be hacked and its constant signal cannot be amplified. Use the case as a preventive measure for car security. The key fob should always stay in the Faraday bag (when not in use) to ensure your vehicle's safety.