These particular headphones are horribly uncomfortable for me and leave my ears aching when I try to wear them. The metal on the back of the headphone pushes into my ears (I admittedly have small ears) and make them unwearable for me after about 15-20 minutes. I bought these so I could wear them on my treadmill while I work out… and discovered that they also have the fun side effect of shocking me while I wear them. The metal on the back of the earphone has actually delivered a tiny static shock to my ears while I wear them. As if working out isn’t bad enough… definitely would not suggest these.