iFootage S1A1 Wireless Motion Control System enables you to add wireless motion control to your Shark Slider S1 (not included). The system consists of an electronic motor, a wireless shutter controller, and the wireless controller. This single-axis system provides steady, automatic moves for time-lapse and motion control moves. The time-lapse mode features a preview function to help you envision the finished shot. A manual mode lets you adjust movements on the fly. Up to nine moves can be programmed and repeated.