high quality. The battery is the products weakest link. Y con respecto precisamente con los audífonos Bluetooth (con excepción de los de diadema que cubren los oídos), prefiero estos AKG de Samsung por mucho, ya que no tienen que cargarse y no se desincronizan los auriculares izquierdo o derecho. Amazing summer shoes/sandals, perfect for a long walk. The ends that anchor to the wall come off very easily. I was contacted by the company after l initiated return. Just dont try to charge them with regular batteries that are not designed for re-charging. Pictures made me think the sides were more firm. 4/5 stars because if it did fit it would be perfect. I ordered two pair since I had a hard time believing they would last 15 hours on one charge.