The Faraday box keeps your car keys safely shielded at home, while the 2 portable Faraday bags (3.66" × 5.91") protect your key fobs when you're traveling or parking in public places-helping block relay attacks and reduce the risk of keyless entry car theft. RFID Signal Blocking Technology - Prevents Unauthorized Scanning and Identity Theft: Built with multi-layer shielding materials, this key fob signal blocker blocks RFID, radio frequency, and keyless entry signals that thieves use to capture and amplify your car key signal. By isolating your key fob from external scanners, it helps prevent relay attacks and enhances everyday vehicle security. This key fob protector box measures 6.7"× 4.8" × 3.8" NIB
