The perfect protection for car keys and electronic key fobs against radio frequency theft,|Signal blocking capabilities include Wi-Fi/GSM/ LTE/NFC/RF and more,|Once enclosed inside the pouch no signal can penetrate from outside or be hacked from inside. |Perfect for: Mobile phones, smart automobile key fobs, building access key fobs, Security/Access cards, smart watches, thumb-drives, |Wi-Fi cards, garage remote and many smaller electronic devices.