A high-quality key case with relay attack prevention function. [Relay Attack Prevention Case] Relay attack principle: Using a radio wave amplifier, the weak radio waves emitted from the smart key are amplified, allowing the car door lock to be easily unlocked, the engine to be started, and the car to be stolen. Our radio wave blocking box is a radio wave blocking case exclusively for smart keys, so when you put your key in the box, it completely blocks the radio wave relay of the key, making it possible to disable relay attacks (car theft methods) targeting your smart key, thereby preventing car theft. The JXE JXO radio wave blocking box can hold up to three smart keys. Notes: If the lid of the box is not completely closed, radio waves cannot be blocked, so please be careful when using it. [Double Radio Wave Blocking Fabric Structure, Excellent Blocking Power] Other companies' products usually have a single-layer sewing, and in some cases, radio waves cannot be blocked. Our company uses a special fabric that blocks radio waves, and after repeated tests, we have improved the product, significantly improving the blocking power, making it an anti-theft box that can easily block radio waves and electromagnetic waves, making it ideal for preventing relay attacks. In addition, this box can also be used as a storage box for everyday use. [Luxurious Appearance, High-Quality PU Material with Durability] The exterior is made of high-quality PU material, which has more durability than ordinary radio wave blocking boxes. In addition, the appearance of the PU material has a luxurious feel and a good touch. It prevents water and dust from entering from the surface to the inside, protecting the lining fabric. The external metal lock can close the case, ensuring radio wave blocking, and it can be used for various models such as Toyota, Nissan, Honda, Lexus, Benz, BMW, Audi, Mazda, Suzuki, and Subaru. [Wide Range of Scene Applications] Applicable in various places. 1) When you go home, take off your shoes and put your smart key in this case before entering the entrance. 2) When you arrive at the office, put your smart key in the case on your desk, so you don't have to worry about your car being stolen. Because it has a luxurious feel, it is also good to give it as a gift to colleagues, friends, and family. JXE JXO Relay Attack Smart Key Case for Relay Attack Prevention Relay Attack Prevention Box Smart Key Case Key Case for Relay Attack Prevention Relay Attack Countermeasures Signal Blocking Case RFID Car Theft Prevention (Mini Wood Grain)