1)mini projector,projector,WIN CE 5.0 2)support MPEG4 AVI, RM, RMVB, FLV, WMV, 3GP, MP4, WORD,EXCEL,PPT,PDF, ... .format MINI PROJECTOR:mini projector,projector,WIN CE 5.0support MPEG4 AVI, RM, RMVB, FLV, WMV, 3GP, MP4, WORD,EXCEL,PPT,PDF ... :Micro SD/ TF card23)Audio:high efficient speaker24)Video format:MPEG4 ,AVI, RM, RMVB, FLV, WMV, 3GP, MP425)Audio frequency format:APE ...