(1)Green Light Wireless Laser Pointer (2)Page up/down function (3)USB plug- ... flash memory, ranging from 0-4G *Green Light Wireless Laser Pointer*Page up/down function1.COMPONENT Transmitter 1 ... the button to turn on; release to turn off.Page Up: support PPT, WORD, EXCEL, Internet Browser, ... , silverorder:black, silver, white, red, blue, green, yellow etc..7.WARRANTYThis product is warranted for 1 ...