... page up/down 2.Mouse function, black screen 3.ABS materials 4.Control distance:15m Mini wireless presenter This presenter has ... three working modes:Presentation mode,Mouse mode,Multimedia mode. I.Presentation ... Or <5mW(optional)Dimension: 130 X 37 X 21MMWeight (Without battery): 47gOperation system: Windows 98,Se, Me, 2000,XP, Vista, ...