In the video, a person is seen using a soldering iron to work on a circuit board. The board is connected to a copper coil, and the person is using a red tool to adjust the wires. The board has a blue LED light that is turned on, indicating that the circuit is working. The person then touches the LED light with their finger, causing it to flicker. The video provides a close-up view of the circuit board and the person's hands as they work on it.