In 2017, Guangzhou City, Wang JS dance and I came to the factory inspection, fully affirmed, and the use of a special dance company sound, use effect is very satisfactory, not only the prosperous business of high praise, customer service service and product quality of our company after the promotion, Fujian, Guangdong City, Hubei, Hunan, have tried Shu Di sound, 2018 Shule Di sound test was selected as the national chain exclusive audio JS