I own a CrossFit gym and paid almost $600 each for our Rogue GHD machines. Very lightweight & cheaply/poorly made. For a long time, Ive been looking for good earbuds. The stock tips are great too, but I use them with the Spinfit SP 145. Multi-Function Button: Instead of a physical button, these are touch sensitive, which is nice. I watched a YouTube video, and had the rack safely installed in under an hour. Still happy with the case! The effect was amazing, the level of noise I was getting even with earplugs just went, and I found I could have a conversation with the others in the data hall without having to shout to be heard. But the straps over the top of the Olowahu mean that you dont have to scrunch your toes at the end of the sandal to hold it on while you walk. Thats about as much good things as I can say about them.