The video shows a close-up of a person's hand holding a black computer mouse with a cord. The person is using their thumb to push the cord lock button on the bottom of the mouse. The mouse is placed on a black surface, and the cord lock button is located on the bottom right side of the mouse. The person's thumb is visible, and they are wearing a white shirt. The cord lock button is a small black button with a red light indicator. The cord is black and appears to be made of a braided material.