Ultimately this is a great value for something that will help your health in the long run to avoid hurting feet to the aching back and down the line. No socks and it comes off my heel when I walk. They look like they will uphold longer than 6 mo with is my record as I twist and yank nothing so bad they should break. Si te fijas, el de color azul es una verdadera chapuza. 😑😔 En fin, espero les sirva mi referencia y mi honesta opinión, no se arrepentirán si lo compran (a este precio obvio). I bought two sets so I could do chest flys and other stuff. I was reading all the reviews trying to find out which one would work best for me. You may need to close other programs, restart a couple of times, and so on, but eventually you get it installed and all is good. He’s grown tired of it lol I think he was looking for the easy kill. they may reproduce 20Hz - but at a low volume and bass dependant on how close to your ear the driver is).