In the video, a person is seen holding a small electronic device in their hand. The device has a green circuit board with several small holes and a black and yellow battery attached to it. The person is using a soldering iron to connect two wires to the device. One wire is blue and the other is white. The person carefully places the soldering iron on the wires and the device to create a secure connection. The video is shot in close-up, allowing viewers to see the details of the soldering process. The person's hands are steady as they work, and the soldering iron is turned on, indicating that the soldering process is active.