ANC o Cancelación activa de ruidoEste punto diferencia claramente a estos auriculares de otros que compiten en su rango de precio. With the snow we have recently gotten Ive noticed my feet are getting wet, they are still fairly comfortable and still have decent tread on them though, no large holes anywhere, they have held up extremely well! It has been about 7 hours in my real-world listening usage. these had great reviews and were a tad cheaper than the ones from kreg. At least I can play golf! I am using the speakers to jam from time to time and it works flawlessly. This is great but I sadly have to say it is horrible to put on and take off, there is no give to the ear piece to properly slide it on your ear and I had already broke it from try to use it for just running and biking ?????. It moves very easily even when fully loaded with clothes. surprisingly, when the tech open up the wrap, all the professional bolts and washers are in there, saving at least 15-20bucks. Love the glasses, hot hot hot!