There is little difference in quality, and the price difference is 10% to 20%. Sony is more expensive than Zhuoda, and Sony is said to be from made in taiwan, while Zhuo Da is made in Xiamen and headquartered in Australia. The workmanship is similar to the above. These are well-known brands, and those in Zhuo Da are more economical. There is also a sculptor's music garden in Hong Kong, which is not bad.