1, Laser pointer 2, Remote page up/down function 3, blank screen Main functions1, Laser pointer2, Remote page up/down function3, ... , Excel, Powerpoint, ACDSee, Website, Adobe Reader and etc. 5. Beautiful, simple and practical feature. Best choice for teachers, professors, ... and so on. 6.Remote control distance:Up to 25 meters 7. Battery:One No.7 battery Hot selling and cheapest presenter Laser pointer ...