People with flat feet dont need more arch support - they need more foot support. I do like that it gives you plenty of different fit options, especially someone like me who has two different sizes of ears apparently lol! It more than met my expectations, for an inexpensive kickstand. The bass module, once plugged in, pretty much instanly synced to the soundbar through the app! We are going to keep them for when they do fit and order smaller ones. They fold up so are easy to put into a bag and carry around when not in use. Returning them through Amazon was a pain as well. I dont know how JBL does it. Then suddenly youll get it and it will work perfectly. Got this as protection on my purchase but I dont get how it works.