Action Target's Portable Runner, operates on 120-volt AC power, and the unit can be plugged directly into a standard electrical outlet. A portable generator may also be used in more remote locations. Because the Portable Runner is built with strength in mind, it is a great choice for applications using larger and heavier targets or longer runs. Additional benefits of the Portable Runner include variable speed control, electric braking, and increased speed and responsiveness. With its additional benefits, the Portable Runner gives you all the performance you need to take your training program to the next level.