Sometimes we get so tired with our hectic and noisy world. We simply wish we could go to a tranquil forest and rest our minds for a few hours; to look for peace and calmness. Or sometimes when you are in crowded place or in place where the background noise is a bit too loud, it gets simply impossible to have a conversation with the person sitting next to you. It is irritating as you would have to strain to hear what he is saying, and in turn you have to shout so he can hear what you are saying. Now, thanks to technology, the latest innovation you can actually achieve this-The Noise Canceling Headphones.

Theory:

Noise-canceling headphones reduce unwanted ambient sounds by means of active noise control. The theory behind this is that by picking up ambient sound with the microphone and reproducing it out of phase, you can actively cancel or "null" out background noise. Essentially, this involves using a microphone, placed near the ear, and electronic circuitry which generates an "antinoise" sound wave 180