The Targus Laser Presentation Remote features a simplistic button layout, making it easy to give presentations. The integrated green laser pointer allows the presenter to highlight important even in bright environment. The latest RF 2.4GHz cordless technology works from up to 50ft away, providing flexibility while presenting in large conference rooms or classrooms. The mini USB receiver stores inside of the presenter so it's always ready to use. A low powered indicator light gives you advanced notice when it is time for fresh batteries. Compatible with both PC and MAC O/S automatically, no toggle switch needed for changing different O/S. The device is immediately ready to use and comes stocked with high-quality 2 x AAA Energizer® MAX® batteries. Both stylish and functional, the Targus P21 Pro Green Laser Presenter is easy to operate for seamless presentations at work or school.