Watch the world professional edition quietly. If you access this software, the default is the file in your mobile phone memory, and I will install it in the memory card. I have no choice but to enter the memory card and choose the way to open the book I want to read, and then choose to read the world quietly. In fact, I can also enter from the software, but I just forgot how to choose.

Choose a memory card, this software can be read without traffic. Very good.