... card up to 32gb main function:video,Music,ebook,picture browse portable video glass1.built in 4gb memory2.support ... micro sd card up to 32gbmain function:video,Music,ebook,picture browseportable video glass Function DescriptionLCD display2* LCD display. ... Bitrate64Kbps-320KbpsFrequency Response20Hz-20KHzSNR>85dBAudio Playback Distortion0.03%LanguageZh, En, De, It, Pt, NL, Fr, Es, PL, Ru,Tr ...