I was looking for ear muffs for when I ride my bike to work, always seems that my ears are freezing and then I saw these with in built head phones which are a great idea. I am so pleased with them; they are lovely and warm with a chunky cable knit design and its great being able to listen to music as I cycle. Its almost as comfortable as travelling by car now!
Regarding other reviewers who say they are too small, they are supposed to be worn at the back of the neck as shown in one of the photos, not on top of your head. When worn like this, they fit really comfortably and they don't slide about even when cycling.