(1)Wireless Green Laser Pointer (2)Page Up/Down(Slide changer) (3)Build ... Box 15.4*7.8*3.8cm Wireless Green Laser Pointer1.COMPONENT Transmitter 1 Receiver 1 Battery ... the button to turn on; release to turn off.Page Up: support PPT, WORD, EXCEL, Internet Browser, ... :black, silverOrder:black, silver, white, red, blue, green, yellow etc..7.ApplicationsTeaching & Presentation,Lecture,Astronomers (Poiting ...