Presenter mode, built-in Class 2 green laser pointer for presentations, intuitive touch-keys for easy slideshow control. AAA batteries required (best with Polaroid AAA batteries).Up to 100-foot wireless range for freedom to move around the room2.4GHz RF wireless technology, built-in docking bay stores receiver for easy pack up and portability; works well as a presenter clicker wireless or computer clicker for presentations.Bright green laser light - Easy to see against most backgrounds, works as a pointer clicker for presentation and clicker for powerpoint presentationsThere's no software to install. Just plug the receiver into a USB port to begin. This power point clicker wireless solution makes presentations easy, and you can store the receiver in the presentation remote after use. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store