Although I have received great service, this product has failed in many ways. For one, these headphones are not compatible with my cellular device (which is what I wanted them for). Secondly, the left ear piece has stopped working shortly after my return period ended (which I do not believe is fair). Thirdly, the volume and station piece that is attached to the cords stopped working as well. Fourthly, the headphones will frequently shock my ears, I have no idea how to explain it any other way other than it shocks and it hurts. I spent over 40 dollars for a product to not last more than 2 months and I cannot return due to the 30 day return policy. Terrific. Wonderful. Thanks.