... 3,Built in lithium battery, 4,MP3 Player 5,Print logo,engraving logo . MP3 Player specifications : 1,Support Multi-languages ... 2,Supports MP3/WMA/WAV formats 3,7 ... nature,Rock,POP,Classic sofe,Jazz DBB 4,Supports MP3/WMA/WAV formats 5,White backlight 6,Inside lithium ... Pink/Blue/Silver/Black/Green 10,Dimension: 86 X 15 mm.