USB plug-and-play.
No driver required.
System: WINDOWS98/2000/ME/XP Linux & Mac OS
Control distance: up to 25m
Working voltage: 3V
Battery: 2*AAA
Wavelength: 650nm
Max output < 1mw or < 5mw
Radio Frequency technology/433. 92Hz /315Hz
Main Function
1.Laserpointer function; 2. Page up function 3. Down function
4.built-in flash memory optional(128M,256M,512M,1G) 5. ESC function and black screen function
It is very useful for teaching, meeting assorted PC & slide.