Mini digital projector   / Support dual screens function,When it connects with computer, The projection screen can display different image from the computer screen. Features and Function: 1).Advanced Micro LCOS screen, 2).Support dual screens function,When it connects with computer, The projection screen can display different image from the computer screen. When you watch TV or movies in projector screen ,the other one can do different things with the computer simultaneously.3).Support USB2.0 high speed transferring files from PC conveniently.4).Plug-and-play without any trouble of installing software.5).Video Standards:  NTSC/PAL6).Support three display Mode:   Primary ,Extended,Mirror.7).Projector Brightness: 12 Lumens,  Aspect Ratio: 4:3; Light source: LED8).Screen Size: 5 inch80inch , the best image quality is: 5.0"0.2m, 73.5"3.0m9). Builtin memory:128MB10).Projection Distance :0.2m  to infinite11).OS Compatibility:Windows XP,2000,Vista Specification: 1:Resolution:    640*480  2:Aspect Ratio:     4:33:Display Mode:   Primary ,Extended,Mirror4:OS Compatibility:   Windows xp,2000,Vista5:memory:     128MBOptical Performance1:Projection brightness:    8-10 lumens2:contrast  Ratio:     100:13:Response  Time(ms):    10ms(Tr+Tf)4:Uniformity:      90%5:Projection Distance :    0.2m  to infinite6:Image  Size:   5.0"0.2m, 73.5"3.0mInterface1:Input :   USB2.02:Power Consumption :    2USB(1A/5W)                                        Certification:CE/FCC/Rohs