| Sometimes we get so tired with our hectic and noisy | | | | what you are saying. Now, thanks to technology, the |
| world. We simply wish we could go to a tranquil forest | | | | latest innovation you can actually achieve this-The |
| and rest our minds for a few hours; to look for peace | | | | Noise Canceling Headphones.Theory:Noise-canceling |
| and calmness. Or sometimes when you are in | | | | headphones reduce unwanted ambient sounds by |
| crowded place or in place where the background | | | | means of active noise control. The theory behind this is |
| noise is a bit too loud, it gets simply impossible to have | | | | that by picking up ambient sound with the microphone |
| a conversation with the person sitting next to you. It is | | | | and reproducing it out of phase, you can actively |
| irritating as you would have to strain to hear what he is | | | | cancel or "null" out background noise. |
| saying, and in turn you have to shout so he can hear | | | | |