This manual provides detailed instructions on how to use the certain reading machine and precautions, including basic knowledge, host component introduction, battery installation, expansion storage function, English-Chinese dictionary function, operation guide, preparation work, power on/off, instant speed change, book selection, page selection, volume adjustment, learning, testing, dictation, listening, intelligent guidance, repetition, follow-up/contrast, formatting operation, support USB download, troubleshooting, technical specifications, and after-sales service.