This is a MINOLTA Program FLASH 3600HS D. It is a used item, but I believe it is in beautiful condition with no scratches. It requires four AA batteries. The fifth image shows the power-on confirmation, and I have also confirmed that the flash fires when attached to a camera. I am not familiar with the details, so features like WL and HSS have not been checked. Everything in the photos is included, and there is no box. AA batteries are not included. I looked into the instruction manual, and it seems that the SONY "HVL-F36AM" is equivalent to this model, so please download the instruction manual for the SONY "HVL-F36AM". I am not very knowledgeable about this product, so I will not be able to answer any questions you may have. Please only bid if you can make a judgment based on the photos. I have confirmed that it fires, but I have not performed a detailed check. In the unlikely event of a problem, I will not be able to provide support, so please consider your bid carefully. There is a case, but it is slightly dirty. Please consider the case as an extra. I will use recycled materials for packaging. Also, to reduce shipping costs, I will pack it compactly, so please understand.