I am from Shenyang. A year ago, I bought a "Walter" alto in a musical instrument store in Zhongjie. The trademark is Walter, also recommended by the teacher. It is certain that teachers earn kickbacks, and I can't help it. However, the quality is really good. Recently, I changed a Yamaha flute head made in 200 yuan. It can be said that it is absolutely not worse than the domestic Yamaha, and it feels quite worthwhile. As for the price, different places and different musical instruments will be different.