Protect Your Car: The Faraday box effectively blocks all signals in the box, preventing criminals from using skimming tools to gain access to your vehicle. Simply place your key in the closed Faraday box will block your car key signal from being accessed by thieves. Protects your personal and financial data by preventing RFID scanners and readers from detecting RFID signals from your cards. Protect your car at all times. How do I know it works? - This Faraday box can effectively block the signal and prevent vehicle theft. You can test it yourself. Just put the car key in the bag, and you will not find any response from your car. Compact size: Except to ensure that the Faraday box works well, specially designed for the size of the new box (11.5 x 9 x 6.2 cm) which can really be used every day. Convenient, user-friendly and reliable. Can store car or house keys in a safe place, many people will forget their spare key fob and leave it unprotected. Now with safe and secure car key signal