The video shows a person's hand holding a small electronic device with a light on it. The device is connected to a copper coil and a red wire. The person turns the device on and off, causing the light to blink on and off. The device appears to be a simple circuit with a light and a switch. The copper coil is likely a part of the circuit, possibly acting as a transformer or an inductor. The red wire could be a power source or a ground wire. The person's hand is steady, and the device is placed on a wooden surface. The light on the device is blue, and the copper coil has a shiny, metallic finish.