First of all: the parts have a great sound and the comfort is awesome. But mine are too short to listen to about 4mm to some acoustic bass channels. When I press the plug something in his ear, I am passionate about sound. Here Bose can therefore not help it. In general, I find it extremely bad at these things always have to buy a pig in a poke! Yes'd go into a store to try them; however, does not register! Who so fit the parts; good buy! Even if they are not so cheap!