Are the leather headband & earpads replaceable; considering the price-tag?
Issues arouse e.g. with Bowers & Wilkins Px8. Although the leather earpads were replaceable, the leather headband was not; and many customers had issues with it. Now with the new Px8 S2 this headband matter has been addressed, and one can replace it.
Headsets are used under different climates & environments. The headband & earpads are what normally wears out first on any headset, so it is important lo let a reader thru your article know about their replaceability.
The above youtube video (min 3:12-3:19) does not talk about it, neither of the Japanese protein leatherette ear cushions & headband.
The Sennheiser HDB 630 over-ear headphones blend Japanese protein leatherette and 42 mm drivers with a parametric equalizer, active noise cancellation, and aptX Adaptive audio codec for the enjoyment of high-resolution music.