In the video, a person is seen pointing at a circuit board with a small yellow object in their hand. The circuit board is blue and has various components and wires on it. The person is using a red pen to draw lines on the board, possibly indicating the flow of electricity or the path of a circuit. The yellow object in their hand appears to be a small piece of plastic or metal, which they use to trace the lines on the board. The person's movements are deliberate and precise, suggesting that they are familiar with the circuit board and the components it contains.