This is my second pair of bone conduction headphones, the first being Aftershokz Trekz Titanium which I used primarily while exercising and in steam rooms and saunas. Enter the Aeropex: the increased waterproofing is evident most prominently in the change from a micro-USB charging port with a flip-up rubbzerized cover to a custom, magnetic waterproof port. I'm not a fan of proprietary power cables, but in this case I think it is necessary and justifiable for waterproofing. Helpfully, the headphones come with two separate charging cables so I mind it even less it. It also comes with a carrying case and, for some reason, earplugs.

My first pair, the Trekz finally died on me after 3 years of service and I was surprised to learn that they were only rated for IP55 water resistance notwithstanding that I used them in steam rooms and cold showers an average of 6-10 times per month for 3 years, so frankly it was impressive that they made it past their two-year warranty at all. I decided to upgrade to a model with IP67 water resistance in the hope that they'll last even longer.

The Aeropex sound MUCH better than the Trekz. Audio is much more crisp, clear, and pleasing. They get about as loud, but they have such better clarity at max volume that the difference is incomparable. I listen to podcasts while intermittently steaming and taking cold showers and in both situations it is MUCH easier to discern words with the Aeropex. The volume is more than enough for me in all but the noisiest situations and the quality is excellent for the conditions. Don't get me wrong--a much cheaper pair of on-the-ear headphones will get you much more volume and crisper sound, but these are the only kind of headphones I could safely and hygenically wear in a steam room so my rating of 5/5 takes that into account. I also enjoy them when cycling and running--they stay on well and are sweat proof and keep your ears open for hazards around you. The microphone is solid too--the acoustics aren't great because it's positioned on your ear and the whole thing is waterproof, but the quality is decent. I was fortunate enough to get these on sale and at the lower price they're a no-brainer. The sound quality is just miles ahead of cheaper models like the Trekz. At full price of $210 I think they'd still be a solid value.