Media Pointer Presentation Remote Control features 2.4GHz wireless technology, time management and media mode functions. It works within a 15-meter range and the anti-interference function lets you move around an auditorium with confidence while presenting. With Media Pointer, you will have good interaction with your audience instead of only staring at the monitor. A built-in LCD timer with a beep alerts you when 30 seconds are left and when the time is up. With this helpful function, you can manage your time easily.