Car Key Signal Blocker Keyless Faraday Box Anti-Theft Safety Blocking Pouch

A signal blocker box for car keys, also known as a key fob signal blocker or Faraday box, is a small, portable container designed to block or attenuate electromagnetic signals. These signals are typically transmitted by key fobs or smart car keys, which communicate wirelessly with a vehicle to unlock doors or start the engine. The box works by using materials that prevent these signals from reaching the car key or the vehicle itself. size: 11.5cm*9*6.2cm