The headphones are great, they are comfy to wear and do a great job at blocking out background noise.

EXACTLY AS DESCRIBED

Very comfortable; keeps out external noise; due to very good and soft ear-padding)

Great sound, very comfortable fit for over-the-ear headphones. I had to hunt for a case to put it in though. Also, still not sure if I'll need an adaptor (not provided) for flights.

Sound quality's fine, but the plastic around the hinges started cracking after not long & the ridiculous right angle jack design gets caught on things all the time and yanked out

I'll be honest, I wasn't expecting a lot from these when I first got it - although, the thing I was expecting from these was some overpowering bass but holy crap these took me by surprise - the 4.20s has a super clean design and very lightweight and portable.

There were a couple of headsets on display at the store I was at. Compared to the others, I found the Bass part of the sound not be overbearing and liked how it sounded myself. I haven't any problems since buying.

Great sound, comfortable, fair price

Expected better isolation even though it's only passive..

These headphones are very comfortable as they fit over the ear and are light. Well-made and look smart. The sound quality is excellent - just what you expect from Sennheiser. No idea what the "remote" capability refers to on the sales site.