?PREVENTION OF THEFT? Vehicle can be stolen easily by key fob data clone or key fob signal amplifying, therefore, you need a faraday box, your car can't detect key and will unable to start. ?EFFECTIVE SHIELDING? 100% block WiFi (2.4 and 5 GHz), Bluetooth, cell phone signal, 5g network, GPS, RFID, NFC and car key signal. ?HIGH CAPACITY? The large capacity volume can accommodate mobile phones, car keys and signal cards at the same time. The size of 4.5*3.5*2.5 inches is enough for you to put in a variety of objects that need to shield the signal. ?HIGH-QUALITY MATERIALS? Wooden + Leather Faraday Box with stronger shielding . Externally made with high-quality PU leather, internally lined features high-quality double-layer RFID blocking fabric that blocks all signal types. This box looks more elegant and fashionable. ?QUALITY PROMISE? We provide 30-day money back and 6-month warranty, risk-free shopping! Please check the model and size before purchasing.