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Every car key has the same electronic functions as you will find on the real car key. When you press the unlock button or unlock trunk the app simulates 2 blinks of the signal lights and if you press the lock button it blinks just one time.
All car keys buttons vibrate when pressed and a led light is shown to indicate that a command has been sent via radio waves. This behavior is similar to a real car key.
Some real key don't have led notification but the simulated one all do.
If you'd like to see some other car keys just leave a comment and well make it happen.