In the video, a person is seen riding a bike and using a device to control the speed. The device is attached to the bike's handlebars and has a digital display. The person's hand is shown pressing a button on the device, which changes the numbers on the display. The display shows the speed in numbers, and the person presses the button several times to change the numbers. The bike is moving, and the person's hand is visible in the frame. The background is a road with trees and bushes on the side.