In the video, a person is holding a black smartphone in their hand. The person is using their thumb to press a button on the side of the phone. The button is located near the bottom of the phone and is red in color. The person presses the button several times, and each time the button is pressed, it lights up with a red light. The person's hand is steady, and they are focused on the button. The background is blurred, but it appears to be a room with a wooden surface.