Shure's new flagship in-ear headphone model, the E500PTH, simply sounds amazing. The company managed to squeeze three drivers into each compact noise-isolating earphone, and the included detachable Push-To-Hear module provides an innovative way to hear what's going on around you when you need to. They're also comfortable enough to leave in for an entire day—which I actually did, believe it or not—unlike nearly every other in-ear model I've tested. So what's the catch? They'll run you a cool $549 (list), but this is a price I'd be willing to pay for what I consider the best.