Founded in 2009,Shenzhen GoldChance Tech Co .,Ltd is a hi-tech enterprise specializing in IP voice product, wireless mouse , DVB-S satellite receiving tuner and so on. Our company is a leading company in developing and manufacturing GOIP, IAD and wifi Phone .GOIP is cheaper and higher quality than DBL. We also provide cheap telephone fare. Welcome use our GOIP. Now we have own product, which ...