Plug and play function. Do not require any software and PC programming. Working on any computer, using a USB port. 3 buttons on the pointer, the first one controls red laser, the middle one controls page up and the last one controls page down. Remote control range over 15m with a very low power. Use thousands of ID number to avoid multi-user interferences. By using this Powersenter laser pointer, you can improve your presentation. Use it to free you from the inconvenience of using the mouse to navigate slides. You don't have to make unneccessary trips back and forth to the PC or Laptop or require a personal assiaatance. Integrates the slide up/down function with a laser pointer on the remote hand held device using a wireless technology.