In the video, a person is seen holding a tablet with a screen displaying a music application. The person is adjusting the tablet's angle and position on a DJ mixer, which has various knobs and buttons. The mixer is placed on a table with a pair of headphones resting on it. The person's hand is visible, and they appear to be using the tablet to control the music being played. The music application on the tablet shows a graphical representation of the music, with different colored lines indicating the beats and rhythm. The video gives a glimpse into the world of DJing and how technology is being used to enhance the DJ's experience.