Today, thieves use signal adapters to steal cars. That's why we need a key box with signal blocking function to prevent our vehicle from being stolen. High-quality double-shielded optical fiber The inner layer uses high-quality double-shielded optical fiber, which has a better signal isolation effect. NOTE: To ensure better signal shielding, be sure to close the lid completely. High-quality materials The appearance of the Faraday box is made of high-quality textured carbon fiber and high-quality PU leather, which is exquisite and beautiful, comfortable and wear-resistant. Durable metal clasps The metal buckle locks the Faraday box firmly, which makes the inner Faraday cloth fit perfectly and the signal shielding effect is perfect. High-end fashion: The appearance of the Faraday box is made of high-quality textured carbon fiber PU leather quality, exquisite and beautiful, convenient and wear-resistant. The inner layer uses high-quality double-shielded optical fiber, and the signal