... & g)(optional)"Storage Memory----"SD Card (up to 4GB, support SDHC)"Format support (with cyrillics supporting)PDF,TXT,CHM,FB2,RTF,TCR,PDB ... ,OEB,HTM,PRC,HTML,EPUB,DJVU,IW44,IW4,DJVAudio format support----"mp3(32kbps-384kbps), wma(32kbps-192kbps), "Font size changing function ...