It is very useful for teaching, meeting assorted PC & slide. It is wireless remote control to show the files through computer. 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 Size: 121 x 25 x 13 mm
Main Function 1. Laser pointer function; 2. Page up/down function; 3. Built-in flash memory optional (128M, 256M, 512M and 1GB) optional; 5. Black screen and ESC function optional.
