The video starts with a close-up shot of a person's hand holding a car key fob. The key fob has four buttons, each with a different function. The person presses the button on the bottom right, which is the unlock button. The video then shows the car door opening, indicating that the key fob has successfully unlocked the car. The person then presses the button on the bottom left, which is the lock button. The video shows the car door locking, confirming that the key fob has successfully locked the car. The video ends with the person holding the key fob in front of the car, showcasing the unlock and lock buttons.