... in flash memory (optional). Technology:Radio frequencyFuntions:Green laser pointer,page up and down,built in flash memory ... optional(64MB-16GB)Contronl distance:15m/49feet.Laser distance:uo to 1000mLaser output:<1mw(ClassII),<5mw ... (ClassIII).Laser wavelength:532nm.Material: brass+plastic.Dimension:16 ... ,Se,Me,2000,XP,MacOS,Linux,Vista. RC Green laser pointer