Shanghai kuanyao Electronic Technology Co., Ltd. Is a product research and development, production and marketing in one of modern high-tech enterprise, specializing in the production and sale of public address system and family BGM, in east China is the largest public address system. The company's own brand --- --- KYC quark is China's top 10 public address system brand.

The main production company speakers, amplifiers and other audio equipment. KYC public address system company's products are sold all over the country, applies to hotels, stations, office buildings, squares, residential, schools, hospitals, prisons, supermarkets, shopping day and night work, play Background music, broadcast radio business, divert people evacuation dangerous occasion, suggesting time to rest. With the high cost and improve after-sales services by the industry acclaim.