In the video, a person is using a toothbrush to clean a circuit board. The person is holding the circuit board with one hand and using the toothbrush with the other hand to clean the board. The circuit board has many small components on it, and the person is using the toothbrush to clean around these components. The toothbrush is green and white, and the person is using it to scrub the board in a circular motion. The person's hand is visible in the video, and they are wearing a ring on their finger. The video is shot in close-up, and the focus is on the person's hand and the toothbrush.