Our company Shenzhen Shengyuan Technology Development Co., Ltd. is a science and technology company of specializing in military and police communications equipment research, development, production and sale .Our ...

Winsong was established in 2007, base in Shenzhen of China. The establishment based on board chairman? Mark and their colleague?s faith .They wanted to utilize and apply the skills and knowledge gained during military ...

earpiece, monitor police earpiece, aviation noise reduction earpiece, and dedicated fire-board earpiece, such as dedicated compact microphone in hand. Products are widely applied in military, public security, customs, ...