1.Green Remote Control Laser Pointer 2.Page up & down 3.Add memory capacity 4.USB receiver 5.Made in China Green Remote Control Laser PointerProduct ... ClassIII<5mWWavelength:630-670nm ,Laser light:green laser light Features:1.green laser pointer,RF technology, page up&down,usb plug ... Mac os3.supports word excel, powerpoint.websiteACDsee, Acrobat reader4.used in the meeting,teaching,speech,training