Product DescriptionAudio-Technica’s lightweight and compact ATH-ANC7 QuietPoint headphones are ideal for use with MP3, CD, DVD and in-flight entertainment systems; with fully integrated ANC circuitry that effectively reduces distracting background noise by up to 85% (active noise reduction up to 20dB). 40mm drivers with neodymium magnet systems
Read more →Product description is HA-NC100 noise-canceling headphones that can give a 75% reduction of noise when in active mode. But it also has 50 hours on one AAA battery. HA-NC100 also has a posterior cord of the system, so that the withdrawal of its 4 9 foot cord
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