Keyless entry fob key emits a short range signal that allows you to open the door without pressing any button on your key fob, its like a passcode the key is the passcode so if the key is near the car it allows access. You can rest assured once you leave your car as the key fob functionality ceases within five seconds of dropping it inside the case. You can also keep your mobile phone inside the case so that no WiFi/GSM/LTE/NFC connection can be established with an outside signal source that could be a potential risk. compatible with Audi Ford Bmw VW Benz all of Car Van Suvs etc. Size: 3.9 inch x 7.
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