In the video, a man is sitting in the back seat of a car, demonstrating how to adjust the seat. He first shows how to adjust the seat height and then proceeds to show how to adjust the backrest angle. He then demonstrates how to adjust the seat's width and how to adjust the headrest. Throughout the video, he talks about the different features of the seat and how to use them. The car's interior is visible in the background, and the man is wearing a gray jacket.