国产欧美精品一区二区色综合_欧美啪啪_日韩欧美高清DVD碟片_欧美做爰全过程免费观看_欧美成人午夜无码A片秀色直播_欧美性猛交_欧美一区二区_欧美寡妇性猛交XXX_欧美《交换做爰》_欧美丰满老熟妇AAAA片_欧美影院

Zhongshan day key group, is our company has always been one of the best partners; The enterprise was founded in 1995, is recognized by the world first-class brand of electroacoustic suppliers, and in 2009 won the eight acoustic related patents. Our company is one of the top ten headset manufacturers in China, the existing staff of more than 2500 people, building area of 60000 square meters.

Day in the past decade, the key adhering to the "steady, loyalty, learning" spirit of enterprise, since the childhood, from a single product to the series of products, can quickly become the current domestic production at the same time capacitive electret microphone (microphones), mylar speaker, receiver, MP3 stereo headphones, hands-free headset, wireless headset, holding a microphone and other electro-acoustic products, one of the products have been long for philips, MOTOROLA, flextronics, lenovo and step by step higher with well-known enterprises at home and abroad.