... format.E-booksSupport e-book reading and recording, automatic page.Keysplay/pause,back/menu,reset,volume up/down,left/previous ... LanguageChinese, English, French, Japanese, Spanish, German, etcSpeaker1*1W built in SpeakerMemory2G RAM,Support TF CardPower supply modePower supply 5V/1A ... ,Built -in li-ion battery,770mAH Audio&Video Output3.5mm stereo ...