The video shows a person holding a smartphone in their hand. The phone is being used to control a computer screen. The person is scrolling through the phone's screen, and the computer screen changes accordingly. The person's thumb is visible, and they are using it to navigate through the phone's interface. The background is a blue screen, and the phone is black. The person's hand is steady, and they seem to be comfortable using the phone to control the computer. The video does not contain any audio.