... Meeting tool 3.Storing document 4.Red laser light 5.Page up and down RC Laser PointerSize:145*13.8mm Color: blue/black ... Control distance: over15m Certificate:CE.ROHS.FDAFeatures:1. laser pointer, page up and down, ball pen 2.usb plug, no driver ... 4.It support word excel. Powerpoint, ACDsee, Acrobat reader ect 5.it is for teaching ,meeting .speech, traning, it means it ...