Like i said, this is a great product if youre quite tall with a short vehicle like an outback and you always have two people kayaking. Not heavy duty. 000 Hz, prácticamente los graves no se sienten y no me convence la calidad del sonido (ojo, no me gustan los deep bass pero aqui ni se sienten), el cable es demasiado corto en el caso de usarlos para celulares y muy largo en el caso de usarlo para PC (1 metro y 2 metros extra, respectivamente) haciendolos muy incomodos en su uso, hablando de ergonomía la verdad es que es una delicia y es el punto mas fuerte junto con su construcción y diseño, si estas en un estado cálido la verdad es que sudarás No problems,easy install and not much wind noiseBMW 2017 x3 I checked my stock wheel bearings, which are ABEC 5, for the same freeplay, and note that after skating on my stock wheels and bearings for 15 skate sessions of 2. The problem I have with this earphones, 1- if you use them for phone calls, the other person could not hear you, and it makes sounds to their end. This product came with two right earbuds and only one of them works. I was tired of my wireless earbuds constantly falling out so I ordered these. A month in and it has such incredible feedback problems my friends can hear my game through my Mic even if my Mic is on mute. Additionally, some of the other sandals are pretty expensive - he got 2 pair for less than 1 pair of something else.