... life 3.Function: ebook,video,FM radio,pic,music, 7inch ebook reader 1.7inch touchscreen navigation 2 ... longest battery life3.Function: ebook,video,FM radio,pic,music,good qualityebook/ ebook reader /electronics reader/ epaper ... Screen Refresh and PartialRefreshYou can enjoy picture and music simultaneouslywith time display, calendar functionCPUChina chipMemory1-16GBVoice recordingYesBatteryPolymer ...