In the video, a person is seen holding a small electronic device in their hand. The device has a white foam cover on one side and a black connector on the other. The person is using a soldering iron to connect wires to the connector. The wires are red, green, yellow, and black. The person carefully inserts the wires into the connector, ensuring that they are securely attached. The soldering iron is used to melt solder onto the wires and connector, creating a strong bond. The person then tests the connection by plugging the device into a power source. The video provides a clear view of the soldering process and the final product.