It does its job quite well. It also smells quite strongly and I am not sure when or if they smell will go down in any reasonable amount of time. Thank you to Propet for manufacturing a comfortable, well fitting shoe------with support (and in a Wide Width). Very good product and price Responsive, sensitive, good frequency range . This was harder to install than those two as the screw on those ones go through the mount, but here the mount slides over the screws, so its more work to get the screws just high enough to snag the mount without a gap, which would make the mount fall off every time you remove something. Originales, buena calidad, muy cómodas, se alcanza a ver un poco la calceta, depende del calzado que uses And the case lid is so loose I lost an AirPod when the case fell out of my pocket. Not sure what happened here but I have them and they are definitely two different sizes. my fault 100%.