Main Function: 1. Laser pointer 2. Page up/down 3. Mouse 4. PowerPoint display 5. Blank screen 6. Clock 7. Self-definite timing alarm 8. Fixed timing alarm 9. Second counter 10. Built-in flash memory optional Feature: USB plug-and-play, no driver required System: Windows98/2000/ME/XP/Vista Linux & Mac OS Radio Frequency technology/433.92Hz Control distance: up to 20m Working voltage: 3V Sleep current: 1uA Wavelength: 650nm Max output: < 1mW or < 5Mw