Exporting to Europe, the US, Asia and Africa Shenzhen Jin Nengzi Precision Technology Co. Ltd is a high-tech enterprise in Shenzhen, mainland China, and is specialized in R&D, production and sales of Bluetooth speakers, Megaphone and DVD players, .With a leading position in China, our products have also been exported to many regions and countries. For example, Europe, South Amercia , Asia and so on, winning a great satisfaction and trust from our customers.