... )Built in speaker,E-book,time display,calendar JXD 991 brand name mp4 digital playerFEATURESDESCRIPTION Design Body Piano baking , pearl white Size ... Resolution QVGA:480*272 Color 16 M colors Video Format RM,RMVB,AVI,FLV,3GP,MP4,ASF,WMV(WMV9),DAT,MPG ... output for 12 hours, video output for 5 hours(earphone) brand name mp4 digital player