In the video, a person is holding a black cell phone in their hand. The person is using their thumb to push down on a button on the back of the phone. The button is located near the camera of the phone. The person's other hand is holding the phone steady. The phone appears to be a Samsung model. The person's thumb is pressing down on the button several times. The background is a wooden surface, and there is no other object or person visible in the video.