As a DJ at weddings and baptisms for the past 20 years, the headphones are perfect. They replaced the HD205 where they gave up after many years of use and they saved me, that's why I chose the same company, perfect isolation of external sounds, and since they are over ear if you don't put them on your head correctly you don't hear as you should, that's it...

I use them with electronic drums, without playing loudly I can't hear anything around me (they were knocking on my door and I couldn't hear at all). The sound is very accurate and without any coloration, I have used them for music and it is a very high-quality sound with good bass. Overall, a very good purchase especially if you use them for electronic musical instruments.

They take these headphones to listen to music and then they write that they have no bass/poor quality. Meanwhile, these headphones are for podcasting. They go and buy whatever and then bury the product in reviews. Somewhere I saw that they are not comfortable. I have fallen asleep with them on my head, light and extremely comfortable.

Well, use for studio and production, for their money perfectly, those who say about the bass are wrong, it has an awesome bass and performs very well in what you hear, where it loses is in the highs, it is tiring if you wear them for a long time, also you don't hear anything from external noises! I recommend them for sure for DJs! And those around you have to turn up the volume to hear what you hear!! It has very good isolation, the only downside is that they are tiring, but that's how they are if you want sound just for yourself and not hear anything around you!

Good construction quality with tight and proper assembly. While wearing them, they don't tire you out, but as soon as you take them off, you realize what your ears were going through!!! In terms of sound...... while they isolate external noise well, unfortunately they don't do well in isolating their own sounds. The music sounds impressively loud to those around you, even at moderate volume. If, for example, they are used in public transportation, they will bother a lot of people. The bass is mediocre to borderline, in compact situations where you don't have the option to adjust the bass, they will disappoint. The treble is fine. The long and spiral-shaped cable is very convenient. But come on Seinnheiser......at €70, include a pouch, a carrying case, something, anything!!

Very nice headphones and good construction.
The negatives are that the bass is terrible, it doesn't have any bass at all... and they could have a protective case.
Usually, expensive and good headphones have a protective case.
Otherwise, they are perfect!