... , 3,Built in lithium battery, 4,MP5 Player 5,Print logo,engraving logo . MP5 Player specifications :1,1. 3.0 inch 16 ... (support TF card to extend 4GB)12.USB 2.0 high speed PC port13.Sound: built in speaker stereo design 14 ... 8DIGITAL15.Sound: built in speaker stereo design16.Colour:silver MP5 Player