Led window can display time, distance, resistance level, rpm, speed, calorie, heart rate. 16 grades resistance level, 8 professional exercise programs. adopt imported self-generated motor electronic system. adjust the resistance conveniently at any time. elliptical arms designed with ergonomics and kinematics in order to make your exercise be more properly and meet different user's exercise requirement. handhold heart rate test, to test your heart rate anytime in exercising. adopt fixed and scroll display to make the operation be more humanistic. adopt high quality 8-slot belt and bidirectional bearing make exercise smoother.