I have tried multiple bluetooth headphones, and I find the accentum black being very comfortable, even after hours of use. The pad material is fantastic and so easy to wear them.
I was expecting less sound quality for the price but I was surprised with the first listen experience. The sound quality it's there. Im even using less my HD25 model now due to better ear comfort of Accentum. Nothing will beat the sound quality of a cabled headphones but again you will be surprised with the sound quality and the noise cancelation of this mode.
I'm pretty picky when comes to sound quality (currently owning Focal Alphas and Adam studio monitors). Go for it, you will not regret at this price range and they are light and sturdy design, bearly feel them on your head.