In the world of on-ear headphones, few can actually be called comfortable. The KEF M500 headphones are the only ones I've ever encountered that were as comfortable, and in some cases more comfortable, than over-ear headphones. For some, that would be enough to justify taking a closer look at these little beauties. Add the fantastic build quality, superior performance to other headphones in the same price bracket, and great noise isolation, and KEF has a winning package with the M500s. I won't say these are some of the best sounding and most comfortable headphones in the on-ear category, I'll say they are some of the best and most comfortable in any category! Highly recommended! Discuss "KEF M500 On-Ear Headphone Review" here. Read the article.