The 3-in-1 treadmills offers a range of functions that cater to different fitness needs. It can be used for walking, jogging, and running, providing a versatile workout experience.When the riser is folded, it can be used as a walking pad treadmill under desk at a speed of 0.6-3.8mph. When the handrail is raised, it can be used as the running speed is 0.6-7.5mph