5寸电子书阅读器详细说明：■Displayandscreen:5-inch,Monochromereflectivedisplay■Screenfeatures:Internalreflectivedisplay,e-paper■Resolutionandcolor:VGA640x480，16-grayscaledisplay■Memorycardslot:SDcard■Formats:EBA,EBAML(EBA2.0),TXT,PDF,BMP,JPG,GIF,AnimatedGIF,MP3■Voicetechnology:Texttospeech(TTS)(onlysupport:txt,EBA,EBA2.0)■Support:English,Russia,French,German,Italia,Spanish,Portuguese,Dutch,PolishLanguage■Battery:2800mAhRechargeableLithium-ion■Maximumbatterylife:upto22hours，stand-bytimeonemonth.■Batterychargetime:ACcharger4hours■OperatingSystem:Linux■Weight:215gram■Dimensions:154mmx110mmx13.5mm■SlotsInterfaces: -SDMemorystickexpandableupto8GB -MiniUSB2.0 -Earphonejack3.5mm.