PHASER- IOGEAR's hand-held RF wireless mouse is the perfect tool for making presentations, it gives you the freedom to walk around the room and not be bound to the computer. The Radio Wave technology allows this mouse to work at any location and from any direction; there is no need to point the mouse toward the computer or sensors. The thumb-operated track ball and the ergonomic contour make cursor movement easy and comfortable. The second left-click button allows you to trigger instead of clicking the mouse. The built-in laser pointer helps you to direct the audience's attention to where you want it. This device is compatible to both USB and PS/2 computers, it also allow multiple units operating in the same room without interfering with each other. It is also backed by IOGEAR's 3 Year Limited Warranty.