The Sennheiser HD 560S are a very specific pair of headphones seeking a very specific customer. 

At a glance, they’re an unremarkable (if slightly dated-looking) proposition. They’re almost entirely plastic, of the black and hard and rather shiny variety – there’s some nicely padded velour on the earcups and the inside of the headband, mind you, so comfort hasn’t been completely dismissed.
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https://www.techradar.com/reviews/sennheiser-hd560s