The SE530s are at the high end of Shure's in-ear options. Like other Shure in-ears, the SE530s come with a variety of extras, such as eight different sets of sleeves, an optional volume control, and an optional remote and mic. The S530s have a modular cord, meaning it's a bit under a foot and a half long. This is ideal for connecting to a media player in an arm band. The headphones also come with an extension cord that makes them a typical length for a set of in-ears.

The SE115s are Shure's new entry-level edition in their popular SE series of in-ear headphones. At first glance, there isn't much to separate the SE115s from the rest of Shure's options. They have the same design, their performance results have similar trends, and the headphones come with similar sleeve options. The main thing you'll notice are the SE115s don't come with Shure's regular batch of extras.

The SE420s are a set of in-ear headphones from Shure, available for $200. Like other Shure headphones, the SE420s have angled nozzles, which make them look a bit different than other in-ears. If you like to wear your headphones' cord looped around the back of your ear, the SE420s were built for you. Otherwise the fit might be a bit awkward. These headphones are very short without their extension cord, which is great for joggers or anyone else who might wear a media player in an arm band.