Kawaii's brand is going out of business in Japan, and it is produced by OEM in China, while Wendelong is a piano used in the Golden Hall in Vienna, Austria, which is produced by Helen Piano Company. It should be said that Kawaii is a small manufacturer in China, and Helen Piano has strong financial strength to invest in research and development. Its piano is mainly exported, and its price abroad is higher than that of many similar Japanese brands. Because of its good quality and sales in China, Wendelong has been attacked by peers for many times. Helen has issued a statement to defend her rights through legal channels, which can be seen in official website. In any case, it is true to speak with quality, and advertising and sales promotion and malicious attacks are not convincing.