Yuyifeng Electronics Co., Ltd. is a collection of electro-acoustic R & D and production with more than 10 years of research and development experience. Waterproof horn are involved in support of customized solutions to various types of horn solutions reliable quality assured total factory area of more than 1500 square employees more than 150 people annual shipments of more than 5 million in Guangxi, Fujian and other places have branches and joint ventures responsible for different types of products Effectively avoid problems such as defective rate increase caused by too many parts accidentally doped in