... , audio 28 hours, video 6 to 7 hours e-book here, about 12 hours, 35003.display type, 7-inch ... normal audio, Microsoft, rock, pop, classical , heavy bass, jazz, (my sound) Volume: 0 ~ 326.picture browsing, support JPG, BMP image ... seconds, 30 seconds, 5 minutes, 10 minutes, do not lock book function, support TXT, EPUB, FB2, HTML, PDB, PDF, DOC ... font amplification fine design white or black 7inch E-book