Even with the extensions, the USB connectivity is fine and the AUX in is clear and noise free. The cord is fairly long. Ok, so youre getting what you expect here: a 4-pack of headphones at this low a price isnt going to give you the greatest sound quality. I tried to contact Retevis about the issue, but the link on the purchase page states its been too much time. Bought for my Dad for "summer" slippers when he started having nerve pain in the tops of his feet. I like these flip flops, but I wish they were just a tad larger, and had more arch support. It was easy to assemble by myself. The original sandal came in a box with salt water sandal tissue paper, the knock off had none, the original says hoyway pat pending on the bottom the knock off says made in USA sun San hoy shoe I will attach photos so you will know what to look for! El asiento no venia completo, es decir le falto la cabecera para que quedara muy bien! 5 / 7Low .