In the video, a person is seen using a soldering iron to solder wires onto a small electronic device. The device appears to be a circuit board with a black casing. The person is using a blue-handled soldering iron to connect green and blue wires to the board. The soldering iron is heated and applied to the wires and the board, creating a connection. The person's hands are steady as they work, and the soldering iron is applied with precision. The background is a dark surface, possibly a table or workbench, with a screw visible in the top right corner.