Sportsart G 690 Non motorized Treadmill Verde is the industry's first treadmill that is capable of harnessing the human power & converting it to utility grade electricity.The sleek, nonmotorized design combines supremely low friction & flat slat belt to create an approachable unit that feels remarkably natural & comfortable. Utilizing both mechanical & electrical braking systems the Verde allows walking, jogging, running, sprinting or sled pushing features that cater to a broad spectrum of users, from deconditioned to elite athletes & is capable of capturing up to 200 Watts / hour of energy.