General description Our CSPARKV Anti RFID Car Key Case Signal Blocking Faraday Pouch Bag effectively shields all signals, preventing criminals from using signal amplifiers to steal vehicles. The pouch is designed to be compact and convenient for daily use, resembling the size of your car key. It features a smooth surface and an elegant appearance, making it a stylish accessory for your car key. Technical specifications Type: RFID signal blocking pouch Quantity: 2 pack Material: Carbon fiber Usage To test the effectiveness, simply place your car key inside the pouch; if the car does not respond, the case is functioning properly.