The harmonica business is a national chain of instrument sales. It operates under the concept of "low profit, hard work, 100 years old." it has also established good cooperation with many large domestic and foreign musical producers. • retails, wholesales, music trainings, and saloons. Among the musical instruments sold are pianos, kite, violins, guitars, bi-hus, uchri, electric pianos, electronics, etc. The piano has many national and international brands: bechstein c. Bechtel, hoffman w. Hoffmann, zimmermann, bosna perzina, feurich, schulze pollmann, petrof, konabi wm. Knabe&co, bernstein, steinway, shumir schimmel, scholze scholze, singhai, schuman, jooji, helen, yingchang, yamaha and kawai. The kite is made up of 10 brands: zhuan, tung shing, zhuang, zhonghua, yung ying, sheng zheng, zheng zhong, zhong, zhong, and others. In the area of product operations, we have always insisted on selling only branded products, and we have been determined not to sell small brands and sub-standards to reflect stratification and branding. It has a strong technical team of after-sales services, provides a good after-sales service for the instruments sold and establishes a service concept aimed at "satisfactory service for clients", which allows users to buy real and easy to use。