I have a P-25C that was made in Japan, in the 1980s I am guessing. It is very close to the current P-25F model in appearance and sound. I think Yamaha has been careful about maintaining the specifications for their pianicas. Suzuki has also maintained the quality of their high end melodions, the ones with metal trays. But now they also offer less expensive models that are cheaply constructed in China. I don’t mean to disparage the inexpensive melodicas, though. I’m just saying that they are not comparable to a $100 Yamaha or Suzuki. And some of those cheap melodicas are sold at expensive prices, sometimes with false or misleading advertising. For example, some that are advertised as “hand crafted” in the USA.