... 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 ... , it means it is used in presentation 6.infrared technology RC Laser Pointer