Easypointer EP320 1G PowerPoint Presentation Remote with Laser Pointer/Clock/Vibrating Timer Multiple Function Portable Device PowerPoint Wireless Control/360 Degree Cursor Control Wireless Mouse with 1G Memory Digital Clock, Countdown Timer, Vibrating Alarm/ Laser Pointer Systems Supported: Windows 98, 2000, ME, XP, MAC OS 9.0 & up, Linux Complies with the FDA, FCC, CE safety regulations 2 AAA Batteries Included, 1 Year Warranty