PilotMouse Laser Wireless Mouse Manufacturers five-year warranty and free technical support Two AA batteries included Compatible with Windows 2000, XP and Mac OS 10.2.8 and later USB connectivityLaser sharp precision in a three-button mouse. Advanced tracking works on almost any surface with 20x the surface sensitivity as optical. 2.4GHz wireless technology ensures high-speed performance and range up to 30 ft. Advanced power management for up to one year of battery life. Four-way tilt-scroll wheel lets you move side-to-side or up and down easily. Flexible rubber grips provide excellent comfort and control.Blue/Black