Key features: 2.4GHz presenter works up to 10 meters without interference. Pico receiver can be stored inside the presenter. User-friendly design, no need to learn, just point and go. Supports Page up/down, ESC function. System Requirements: IBM PC/ Pentium 233 compatible or higher. Windows 7/Vista/XP. Mac OS 10.2.8 above. Available USB port. Package Contents: Media Pointer 100. Pico receiver (Storable). Two AAA batteries. Multi-language user?s manual