An Audio Flash Card is an MP3 file that contains a short (30 second) Chinese word or phrase as well as its English translation. While listening, individual flip cards allow you to check the Pinyin, Chinese characters, and English answers.
MP3 Flash Cards iPhone App
The iPhone app for Chinese Audio Flash Cards (optional) can be used walking, riding, driving, and on-the-go. You can lock your phone and put it in your pocket – you will hear both the Chinese and English – no need to check the screen.