Azumafy Relay Attack Prevention Key Box, Radio Wave Blocking Box, Anti-Theft Key Box, Smart Key Case, Black, Car Key Box (Small Size)

Product Specifications: This key box prevents relay attacks. A relay attack is a technique that uses a radio wave amplifier to amplify the weak radio waves emitted from a smart key, allowing an attacker to unlock the car door, start the engine, and steal it. To block these weak radio waves, the box has a layer of metal mesh inside. This mesh blocks electromagnetic signals. Please store the box with the lid completely closed. Any gaps will prevent signal blocking. Design: Made of PU leather, it feels great against the skin. The simple and stylish black design makes it suitable for any location. It's perfect for your entryway, living room, or even at work or on the go. Function: Relay attacks targeting luxury cars have been on the rise in recent years. This product's dual-layer radio wave blocking material prevents relay attacks and protects your precious vehicle. Please keep the lid closed properly when using the box. Signals cannot be blocked. Available in three sizes. Small size: 11.5 x 9 x 6.2 cm Medium size: 17 x 12.3 x 9.5 cm Large size: 19 x 12 x 9 cm It can be used for a variety of purposes, not just storing keys, but also cards, smartphones, etc. Please choose the size that suits your needs.