Wisdompro Radio Wave Blocking Pouch, Smart Key Case, RFID Blocking,

• [Material] Outside: Oxford fabric Back side: Silver RFID block shield foil [Size] 13.5 x 10cm • [Interceptable frequency range] 10 MHz - 3 GHz Fastener type: Hook and loop fastener.It can completely block electromagnetic waves such as car smart key signals, Wi-Fi, GPS, bluetooth, RFID, smartphone communication signals, and electronic money radio waves. • [Convenient Design] The size is easy to hold in one hand, and it comes with a small metal ring, so it's convenient to hang in your bag or around your waist, and you don't have to worry about losing it. • [Double-layer structure of blocking material, safe and secure] There are two pockets, and the inner radio wave blocking pocket contains RFID blocking material (shaky silver sheet).The outer pocket has no radio wave blocking function and can be used as a regular wallet to store business cards, coins, tickets, etc.In addition, since the blocking material sheet has a double layer structure, it has a stronger blocking effect and durability than other single layer structure blocking pouches. • [Relay attack theft prevention] A smart key radio wave blocking pouch is an affordable and easy tool to protect your precious car from theft called "relay attack."Simply insert your smart key into the inner radio wave blocking pocket to easily completely block electromagnetic waves.By blocking unauthorized radio waves, you can prevent skimming and damage caused by "relay attacks" caused by car theft.