The metal fittings on the battery box lid are rusty. It doesn't work as is. In an amateur experiment, it conducted electricity and emitted light with repairs using aluminum foil, etc. Since there is no camera, the operation when attached has not been confirmed. These are not covered by the warranty, so please use them at the buyer's own risk. The MINOLTA PROGRAM 5400 H9 is a high-performance strobe with a high-speed sync function. - Brand: MINOLTA - Model Name: PROGRAM 5400 HS - Function: High-speed sync (1/9000 second) - Operation buttons: ON/OFF, MODE, LIGHT, TEST - Design: Shape of the flash head - Accessories: Dedicated case Please purchase with the understanding that this is a used item with defects. Shipping will be via Yu-Yu Mercari mail, with simple packaging. Please note that recycled cushioning materials may be used. Thank you for your understanding.