... book,read repeatedly,2GB/4GB memory,USB port,microphone recording,earpone port,volume controlling,automatic shut-off.2. Professional ... and high fidelity voice, clear recording.7. Materials: Eco-friendly8. Books: High quality paper with legible printing.9. Store ... by only touching the text in sounds bookClear high recording voice for listeningRepeating any words to memorise by touching againStoring ...