Functions as a remote control, a laser pointer .When using Microsoft Powerpoint, it allows for seamless presentations. * There are many Different Professions that will find great uses for this Laser Pointer: * USB plug-and-play. No driver required. * Radio Frequency technology/433.92Hz, Control distance: up to 25m , Working voltage: 3V ,Sleep current: * System: WINDOWS98/2000/ME/XP Linux & windows vista & windows 7