Baseball Pitching Field Force Speed Shuttle Machine FSSM-220 Operation confirmed. I bought it for my child, but they stopped using it. Adjust the angle by pulling the red knob. *Shuttle tube not included! Please make your own with a clear file or tube, etc. It can run on batteries, but they drain quickly. An AC adapter is included. *Shuttles not included. Please purchase the dedicated shuttles! Included: Main unit, AC adapter