Digital Screen (LCD): Displays basic exercise data (speed, distance, time, calories, and heart rate). It has 12 pre-set exercise programs (P1 to P12) and quick keys to adjust speed and incline levels. It has a USB and MP3 input for playing audio during exercise. Two side pockets for placing water bottles or personal belongings. Safety Key: The prominent red piece attached by a cord, used to automatically stop the machine in case of user fall or emergency.