My husband was jealous and asked for a pair so I got him some too :) These are not Uggs. Not recommend for working out since it it will pop out. 4 mm 5-pole balanced jack. For the price they are well made and love the style. This looks and feels a quality item although some may say its austere looking. Im a huge lover of music and these speakers have been a great addition to my home (and a couple of travels and probably a few more travels down the road too! Not as wide as the Keens but fit him with a thin sock and look just wide enough probably steel. And 1 more because my friend who is 57 and 185lbs tried it on and it fit her PERFECTLY on the 1st row.