... and portable. 4.Support wifi 6 inch touch screen e-book suport wifi and many format ,having a strong space. ... CPU: 600MHz, DSP: 560MhzDDR2128MB (Standard). 2X128MB=256MB (optional, additional cost)Display TypeE-ink 4:3 VizplexPanelPVI 1st generation or Chinese brand ... ); 40 days (Using Mobile DDR)With background music while readingYesE-BOOK file formatDocument Formats: EPUB, PDF,TXT, HTML, FB2, CHM, ...