... speech and pronunciation. 1. Talk by clicking the book,play game on book,read repeatedly,2GB/4GB memory,USB port,microphone recording ... pause, stop, rewind, fast forward, previous track, next track, download, record, compare reading, mp3 play, voice up and down, open and ... 4GB memory12. Certification: CE, RoHS and FCC.Other Service:1. Book design and printing, add new translated versions.2. New program ...