Where can I get these phones?

Hi, I have a question about these two phones: LG Ice Cream and LG Lollipop. Are they available in China? I'm going to Guangzhou/ Shenzhen in a week, and I want to buy either of those phones when I'm there, what stores sell them? And when I return back to the states, how will I be able to unlock it? Any help is appreciated, thanks :)