1.2.4G wireless presenter 2.USB laser pointer,page up and down,blank screen 3.Red laser presenter with CE &RoHS Features Easy-to ... the sideProvides forward and back control of PowerPointSpecifications*red laser pointer *page up and down*black screen/full screen,*Esc2 ... Reader etc9.For teching ,Meeting,Speech,Training etc. 2.4G wireless presenter ,USB laser pointer ,Red laser presenter with CE &RoHS