Over the past few years, wireless headphones have become more of the norm. I see more and more people walking around with them, and wearing them on the train. Noise-canceling technology has made big strides, with the Sony XM3 and XM4, and even companies like Shure are getting into the wireless game. Audiophile-centric manufacturer HIFIMAN has now entered the game but in a rather unconventional way. 
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