China Sourcing Limited. is a private high-tech enterprise focuses on the R&D, production and marketing of voip system and bluetooth products. An independent export department devoted to sourcing activities, specializes in offering various networking and digital electronic goods, which made in China, as well as dozens of partner factories, which specialized in producing Media Converter, FiberOptics, Router, MP3 players, flash drives, LAN cards, and other digital device. We gladly offer Voip ...