... one Projector with touch screen 1.Big Multi-touch screen: 55'' and 65'' 2.Kinds of teaching resources 3.White-board All-in-one Projector with touch screen 1. ... and print the writing, record the writing process, play multi-media files, postil OFFICE file, the software provide teaching ... support PAL,NTSC, provid HDMI`AV,YPBPR ,can connect with DVD,VCD media player, applicable to high definition ecinema, ...