... usb receiver stored inside portable, and easy-carry UFO Smart Wireless Laser Presenter with Page up/downIncluded the function of traditional ... !Products Composition:1 transmiter, 1 receiver, 1 mannual and 1 set battery, packing boxPRODUCT Features:1.Laser Pointer: Hold on the ... very useful for teaching,meeting, training, assorted PC.It is wireless remote control to slide files from computer UFO smart ...