You can download it into your internal or external (recommended) memory.

Please save into memory card location : Appletree > Learning > Download

-PinYin Learning - a

-PinYin Learning - ai

-PinYin Learning - an

-PinYin Learning - ang

-PinYin Learning - ao

-PinYin Learning - b

-PinYin Learning - c

-PinYin Learning - ch

-PinYin Learning - dan yun mu

-PinYin Learning - yun mu