Our daily life is full of all kinds of home appliances products, due to human activities is very close, so the applied to electrical appliances product fan requirement for sound quality is very high, built must extremely silent series fan import sound quality optimization project, the fan sound quality from "traditional acoustic evolution" to "psychoacoustics analysis, for the product to create the sweet voice, This series of fans are mainly used in white home appliances and black home appliances terminal products, even close contact with the product will not be disturbed, only to consumers comfortable enjoyment!