The video shows a close-up of a person's finger pressing a button on a smartphone. The button is located at the bottom of the phone, and the person's finger is shown pressing it multiple times. The phone screen is visible in the background, displaying various icons and apps. The person's finger is shown pressing the button with precision, and the button appears to be a physical button rather than a touchscreen button. The phone's screen is bright and clear, and the person's finger is well-manicured. The video does not show any other part of the person or the environment.