... screen to some extend. 5.Supports file formats: TXT, HTML, PDF, EPUB, PDB, FB2, CHM, RTF,TCR, OEB, OPENREADER6,Support SD ... )USB 2.0 (charging)Internal Memory256MBButtonTBDSpeakerAvailableFile Format CompatibleText:TXT, HTML, PDF, EPUB, PDB, FB2, CHM, RTF,TCR, OEB, OPENREADERImage:JPG, BMP ...