I bought the headphones due to a reduced price. The sound is good and the bass very well fed and powerful with the amp, but I heard already on first use a permanent noise, which is not noticed when listening to music, but it bothers me already enormously when I just am sometimes on the desktop and just not listening to me. I do not know if this happens for all devices or I just had bad luck but that's why the headphones go back again. One turns the amplifier one has a very neutral sound almost too neutral, who listens but also sometimes less bass intense music might like this find it.
The look is not bad for mobile use, the headphones are built MMN too wide.
