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Review title: Displeased with performance so I returned it.
Product review: I bought these headphones for use on commercial planes. I was very disappointed with the performance. I found that the combination of the plane's noise, combined with the 'white noise' from the headphones was terrible. I had hoped to "cancel' some of the noise, but felt that it was worse. Other people may experience a different result, but I returned these headphones since I was disappointed and knew I'd never use them again.
