They were super stretched out within the first few days of wear. Usually I like Isotoner & trust them. Ease of connection is great, once paired all you need to do is remove them from the case and theyll automatically turn on and sync to the phone. Sound quality- laughable I dont know how music would sound, but all the voices come through clearly. Both work well for my problem feet which are usually sporting the Alegria brand shoes/sandals for work. And it might as well just be a trash bag with a zipper on it. ??v?????v? this vest! I dont use earbuds for calls. Update:So, after making my original post (below) and returning my earbuds, I was contacted by Treblab customer support.