... 3,Built in lithium battery, 4,MP3 Player 5,Print logo,engraving logo . MP3 Player specifications : 1,MP3 pen has pen,mp3,FM and record functions 2 ... ,vMusic file formats: MP1,MP2,MP3,WMA,WMV, ... ASF,WAV 3, EQ mode: Normal / Classical / Jazz / Pop / Rock / Soft / DBB 4, Digital voice ...