Ningbo Yinzhou District Eastport Electronic Co.,Ltd is located in a beautiful seashore city-Ningbo, is an enterprise specializing in electret condenser microphone. The company was eatablished in 1990, through sevral years' research and producing on electret condenser microphone and absorbing advanced production technologies and mangement experience from domestic and abroad. We have more than 40 series including more than 200 types of back and foil production put on market, which are applying to the mobile phone, hand free system, computer, recorder, digital camera and automobile etc. And has formed the inernational market system spreading over whole world. We have become one of the largest production bases of electret condenser microphone in domestic