Product description
Technology: radio frequency
Function: page up/down
Wavelength: 650nm
Laser distance: more than 200m
Control distance: 12 to 20m
Battery: AAA x 1
Size: 135 x 18 x 19mm
Built-in flash memory: optional
USB plug-and-play function, no driver required
Operating system: Microsoft's Windows 98/2000/Me/XP, Linux and Apple's Mac