Monoprice Wireless Trackball Mouse Laser 2.4GHz Presenter (110759) Take control of your meetings and presentations with this Wireless Trackball Mouse Laser Presenter from Monoprice The laser presenter syncs to your PC with a simple USB key that is stored behind that battery door The Wireless Trackball Mouse Presenter is a 5-in-1 product integrating an optical trackball mouse, laser pointer, PowerPoint slide control, multimedia remote control, and LED flashlight