These are the worst earphones I've ever bought. The earbuds are angled heavily forward and slightly down and they simply do not match my ear canal. Maybe my ears are different from everyone else's, but there is just no way they could ever, ever sit in the ear comfortably and reliably. From what I read, a normal ear canal is angled *slightly* forward and up. The angle on the earbuds is all wrong. Way too much angle forwards and there should be NO down angle at all. The design is totally wrong. I complained and the seller offered to replace them with over-the-ear headphones which I accepted. After having to follow up some time after they made the offer because they hadn't done anything, they sent me another set of the same earbuds. I didn't even bother to take them out of the box. I threw both pairs in the trash and asked for a refund from Amazon.