Since my last headphone post I’ve been trying out lots of different models, and have settled on two new ones as my daily drivers: the PowerBeats 2 and the Sennheiser Momentum 2 Wireless.
I’ll talk about the Beats first because it’s easy: before I used a Plantronics set for exercise, but the battery life wasn’t great and they would often fall out when running. The Powerbeats 2 are light, have great battery life (they claim 6 hours, that feels about right), stay in place even when running in the Houston heat, charge fast, and as a bonus they look cool. (Beats has always been great about that.) The sound? They’re bad, but good at it. There’s basically no isolation so you can hear traffic and things around you at lower volumes, which is actually a bonus, and if you turn up the volume they get loud enough to drown other stuff out. Buy these for the function, not the sound quality, and you can pick them up from any Best Buy kiosk in the airport or Apple Store if you lose or forget them, so they’re pretty ubiquitous.
I heard about the Sennheisers from Carl Hancock who tried them and gave them a high recommendation. I had trouble finding them but there was a pair local to me at B&H in New York so I got them delivered and I was immediately impressed with them. They’re better than my previous wireless over-ear recommendation the Samsung Level Over in every way: sound, size, compatibility, aesthetics, usability, noise canceling.
The sound is the best I’ve heard from wireless headphones so far. Just the right balance. The noise canceling apparently uses 4 different mics and I’ve found it more than sufficient on dozens of plane rides, including passing the noisy baby test. My only complaint is they don’t “grip” my ears as much, so some sound leaks in that way. They fold up to be pretty small, and I just toss them in my backpack. 
The battery goes forever, or as they claim 22 hours. You really forget to charge these things for a while and they still have plenty of juice. The volume and other controls actually work with the iPhone, and bluetooth calls have sounded great and people can actually hear me. Only downside is they have basically a proprietary connection for their 1/8th inch cable, so you have ta carry that around, but they charge with standard micro-USB. The only possible challenger I can think to these are the BeoPlay H8s, which I haven’t tried yet.
tl; dr: If you want to exercise and get sweaty, get the Powerbeats 2 in your favorite color. For traveling, listening to music, talking, and generally enjoying amazing sound without worrying about wires, try out the Sennheiser Momentum Wireless.
I think it’s interesting that both of these recommendations are version 2.0 of a product, it’s good to see companies iterating and improving on products even if they’ve already been successful in the marketplace.
Let me start with how the Beats are better: they fold up, look cool, sound pretty decent on calls, and everything works nicely with the iPhone. For me they have two fatal flaws: comfort and noise. The earcups are kind of small, or my ears are kind of huge; whichever it is, sometimes after wearing them for a few hours my left ear starts to become quite sore. Second is they have active noise cancellation (ANC) that causes what can only be described as a constant hiss you can hear both while music is playing and while it’s off, it’s like like noise addition rather than noise cancellation. The fit and finish of the Beats are nice, as well as the accessories like cables, how it indicates how much power is left, et cetera.
The 
Too long; skipped to the end: The Samsung sounds better, is more comfortable, and is better made. Try it out if you’re considering buying headphones in this category. I don’t expect this to be a long-term advantage because I’m fairly certain Apple will do amazing things with Beats in the future, even if that just means a lightning connector, but I’m guessing that’s a 2015 thing.