... , 3,Built in lithium battery, 4,MP5 Player 5,Print logo,engraving logo . MP5 Player specifications :1,1. 3.0 inch 16 ... ,VOB,MP4,MOV,ASF etc3.Audio play formart supporting: MP3,WMA,FLAC,APE etc4.Built-in Li-on battery through USB ... .USB 2.0 high speed PC port13.Sound: built in speaker stereo design 14.Muilt-games built in 8DIGITAL15.Sound: built ...