... memory, ranging from 0-4G *Green Light Wireless Laser Pointer*Page up/down function1.COMPONENT Transmitter 1 Receiver 1 Battery 1 ... Pointer: press the button to turn on; release to turn off.Page Up: support PPT, WORD, EXCEL, Internet Browser, Picture Browser, ... play3.RECEIVER FUNCTIONLED flicker: before receiving the transmitter signal.LED off: waiting for the transmitter signal.LED on: receiving the ...