... playhigh-definition video: * hd, 720P high-definition quality decoded,display high-definition images* support outer sound broadcast and various sound ... mode(normal, pop, classical, etc)* support TXT,FB,PDF,EPUB,HTM,MOBI ... 15 minutes, 20 minutes, not automatic shutdownFont magnifier functionThe longest display time (h) : 28 hours audio, 6-7 hours Video ...