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Destructive Interference – Active Noise Reduction (ANR)

Destructive Interference – Active Noise Reduction (ANR). Koss Noise Reduction Headphones. Destructive Interference – Active Noise Reduction (ANR). Koss Noise Reduction Headphones.

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Destructive Interference – Active Noise Reduction (ANR)

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  1. Destructive Interference – Active Noise Reduction (ANR) Koss Noise Reduction Headphones

  2. Destructive Interference – Active Noise Reduction (ANR) Koss Noise Reduction Headphones This revolutionary Active Noise Reduction (ANR) stereo phone system reduces harmful and annoying low frequency sounds in noisy environments. Microphones in the headset "listen" to noise coming to your ears. Then a microchip creates a mirror image wave (of the same frequency and amplitude as the original, but 180 degrees out of phase), and sends it to the headphones. Result: Destructive interference cancels the noise. Frequency Response: 30-20,000 Hz. Plug it in like normal headphones and hear only your music, not the jet engine!

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