TapeOnline.com Maxell NC-IV Superior Noise Cancellation Headphones

Maxell - NC-IV Superior Noise Cancellation Headphones - 190403Maxell's Noise Cancellation Headphones are perfect for plane rides or other situations where you want to hear what's on your speakers - without distracting background noise.They are great for travel, and the earcups swivel and fold flat for compact storage.They are comfortable and lightweight, and easy to adjust if you are wearing them for long periods of time.Remove the battery, and they work just like standard headphones.How Do They Work?These active noise cancellation headphones from Maxell actually reduce "noise" by creating a sound wave 180 degrees out of phase with the undesired sound.Inside the ear cup, a tiny microphone picks up the unwanted sound.Built-in electronics determine the frequency and amplitude of the sound wave, and then create a new wave that is 180 degrees out of phase.This phase is sent through an internal speaker to the headphone speaker, along with the desired audio.The unwanted sound wave along with the new wave cancel each other out, leaving you with only the sound you want to hear.