... 1 system, rockchip 2818 WIFI :support engine:3M MM200 upgrade brightness: 30lumens Operating systemAndroid 2.1,ROCKCHIP2818Wireless NetworkSupport WPA and ... , PowerPoint browsing, simple editing operations,View PDFWireless mouse and keyboardsupportVGA portSupport video formatAVI,RMVB,RM,MP4,MOV,VOB,DAT ... INPUT, AC 120-240V,OUTPUT/DC 5V /4ABattery play time Up to 1.0 hoursDimension(projector)128.1*70* ...