... RF2.4GHz Tech 5.RC range:20m Multimedia Wireless Presenter Laser Pointer 1.Product compositionTransmitter 1 ... 1 Box 1 2.Product Features Black Screen Wireless Presenter*Red Laser Pointer*Build-in USB Flash ... off b.Page Up: support PPT, WORD, EXCEL, Internet Browser, Picture Browser, etc c.Page Down: support ... PPT, WORD, EXCEL, Internet Browser, Picture Browser, etc d.In the PPT ...