In the video, a person is seen adjusting the volume on a sound mixer. The mixer is black and has several knobs and buttons on it. The person's hand is visible as they turn the knob to adjust the sound. The mixer is placed on a table, and there is a pair of headphones next to it. The person's hand is the main focus of the video, and the sound mixer and headphones are in the background. The video does not show any other objects or people.