The video shows a person's hand holding a black wire and moving it back and forth in front of a Tektronix oscilloscope. The oscilloscope is displaying a waveform on its screen, which changes as the person moves the wire. The oscilloscope has a blue screen with white and yellow text and markings. The person's hand is visible in the foreground, and the oscilloscope is in the background. The wire appears to be connected to the oscilloscope, and the person is manipulating it to create different waveforms on the screen.