Technology:Radio Frequence           

◆Fucnction:Laser pointer,page up/down,play/black screen.
◆Wavelength:650nm
◆Laser distance:more than 200m
◆Control Distance:12m~20m
◆Battery:AAA*1                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    ◆Size:φ14×145mm
◆Bult-in Flash memory:option
◆USB plug-and-play,No driver required
◆System:win98/2000/me/XP/Linux&Macos