My first BIG complaint is they use a screw in pin which you have no way to lock for security. Thank you Amazon for easy returns. The ear-clip design is comfortable. Which is something sorely lacking from speakers this size. Long walks in these would cause blisters on the side of my foot. It should be the other way around. Keep the price ridiculously affordable, considering the sound quality and everything else - CHECKThe only things I would still like in a perfect world would be a transparency mode and maybe a little more robust EQ app ala Soundcore’s fabulous one. Just attach one end and slide it to attach neatly to the other side. That said these were not only cheep but bad. Je vais faire appel à la garantie AZ.