... Laser pointer 2.Used for teaching,speech,training,presentation 3.Weight:47g 4.CE,RoHs approved 5.Size:120 ... *25*18mm 3 in 1 red laser pointer+remote control+USB ... down, option:flash memory 2.USB plug , no driver request 3.system:Windows 7/Vista/XP,Linux,MAC OS ... ,teaching,speech.Training 6.Infrared technologyPackage images: 3 in 1 red laser pointer+remote control+USB storage ...