... . Control distance:15m .Product name : wireless laser presenter .Technology :Infrared technology .Function : Laser pointer ,page up and down ,built in ... flash memory optional .Control distance :15m .Laser distance : up to 200m .USB plug and play ,no ... driver required .Good tool for presentation ,teaching ,meeting .Operating system :Windows 98,Se,Me,2000,XP ,MacOS ,Linux ,Vista . ...