Canon SPEEDLITE300EZ This is a flash for film cameras. If my memory is correct, it's about 25 years old. I checked the operation, but it didn't work. Three CR123A batteries Panasonic is unopened. Fuji is opened (I don't know if they can be used) I stored them together, so they are probably about 25 years old. (These are not the correct batteries for the flash) I will sell it to someone who understands. If you have any questions, please comment.