system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Keyless entry; what's stopping someone from hitting unlock on the door as I walk away but am still in range of the car?
gpt
Well, the range for keyless entry (if you're talking about the kind you keep in your pocket and touch a button on the side of the car to lock/unlock, and not the type that you have to have in your hand and push a button to lock/unlock) is small. Very small. A few feet small. So any attempt by a stranger to hit unlock on a door would be so close to you that you could physically stop that.