I received this as a souvenir from a friend several decades ago. At the time, I wasn't familiar with these kinds of things, so I discarded everything except the main unit and it's been gathering dust in my desk for many years... I recently discovered it while cleaning out my desk. Therefore, I have never used it... or rather, I still don't know how to use it. This time, even after replacing the battery, it doesn't power on. However, I think it can be repaired, and it would also be useful for parts. It is a used item, a junk item. Returns and complaints after purchase are strictly not accepted. [Product Condition] ⚪️ Non-functional, so it's a junk item. ⚪️ No case, instruction manual, or other accessories are included. ⚪️ There are some scratches. * Please note that I cannot offer any discounts on the listed price. Thank you very much for reading to the end. Thank you for your consideration.