... ,PDB,EPUB,UMD,CHM ,HTM and other main formatAudio formats:MP3,WMA,WAV,APE,FLAC etc.formats:AVI,rm,rmvb,MKV ... channels, FM transmitter is optionalSound record:MIC record: build-in MP3.WAV recordPlayerCCPlayerothersG-Sensor,Zoom,handwriting annotation .intelligent chap off.multi ...