... panel,grayscale 16C 2, JZ4755 360MHz CPU 3, QWERT keyboard 4, WIFI 802.11 B/G build in 5, Linux OS Model ... 6"E-ink 800*600, grayscale 16CInterface MINI USB 2.0 Card slot Micro-SD, Up to 16GBEarphone 3.5''Speaker ... 0.8w*2Text format TXT, PDF, HTML, HTM, EPUB,FB2Working duration ... cardDimension 200*124*8mmWeight 225g 6" E-INK E-BOOK with WIFI