I wore a pair daily, often for miles and mild hiking. While a little big for me (but true to his size), I could see the draw. To use wifi you will need the Sony Music Center app. AND one of them came with some crusty stain on it. Only one downside . The ear pads are pleasing to the touch and effective whilst the inside padding on the headband is more robust yet also comfortable. They are a consumer electronics brand that has proven to me that they can be trusted. It?s normally pretty hard to get me to sweat, even when my heart rate is up and I keep it between 150-160. Your idea of speaker connections is a solder-tinned wire at the end of a $50 molded cable?PoS, totally disappointed, and thats coming from a Bose 901 to lifestyle convert. 5mm headsets or for those that want better sound without buying a sound card.