Nanan zhongzheng Electronic co.ltd  attend Global Sources trade show in  October 2017 in HONGKONG AsiaWorld-Expo ,it is the second time  we attend this trade show .we display our hot sale product.inclucding：conventional product,quick disconnect series,speaker microphone,mobile radio microphone and wireless headset.from this trade show ,many oversea buyer know more about our products. and establish business relationship with us。