Interestingly, the cheapest ones (Grado SR60e) have the best audio quality _when connected to an iPhone_ because they are very power efficient, and get the highest possible sound quality from the limited power of a phone. The more expensive ones are better connected to a proper amplifier with unlimited power, but not when connected to a phone.I'd be going to Grado for ultimate audio quality but they're an altogether different prospect, and not wireless.
Perfect if you work at home in your own home office, and you want to hear the doorbell ringing even if you use your headphones. Also good in an office that is usually quiet except when someone wants to talk to you. Their big advantage is that you hear everything around you. Their big disadvantage is also that you hear everything around you.Build quality is still pretty funky, but they're light and comfortable enough and the sound is awesome. Huge bonus: you're not saddled with that insanely thick, hard wired, six foot cable they typically use. Any normal 3.5mm AUX cable works. But of course being open they're utterly useless unless you're in a quietish room.