This is a batting practice machine from Field Force. It can be used with both a power supply and batteries, and it shoots feathered shuttlecocks. By changing the angle, you can practice batting with both arcing and straight trajectories. Includes: Speed Shuttle Machine Body 21 Shuttlecocks AC Adapter, Instruction Manual, and Screwdriver set. The adapter has never been used. Batteries are included. It has been cleaned to some extent, but there is dirt such as dust from outdoor use. Sometimes the tosses don't go up well, but I think it wasn't bad to have the timing thrown off. Operation has been confirmed. Please purchase this item if you understand the above. I have not been able to sell this item before, so I am not accommodating requests for a lower price. Thank you for your understanding.