MP3 screen (there is) PC type USB2.0 interface Music format support for MP3 ,WMAaudio format pllayer
1.Function parameters operation adjusment knob With+/- is the size of the volume adjutment buttons; Fast-forward mode with the songs of the fast-forward and up and down regulation of the repertoire; side of the printed instructions of the power switch is key
2.power specifications Built-in lithium battery cell broadcast time to 6.5hours
3.Exterior parametrs Body color black /white /silver /pink /biue /red /orange /purple