I've had a few different types of Bluetooth headphones/ear buds but these are my favorite so far and dare say the best for the price and quality you get from these. The are comfortable to begin with and do not constant adjusting. I wore them to work for several hours and then for a workout with very little battery drain. I lift moderate to heavy weights and I only adjusted the earbuds once. I say that is very good compared to to others. I walked for 45 minutes and did not need to adjust them at all. I wasn't aware that it was a power bank and it was a nice surprise when I opened the box. Another thing I noticed was that these ear buds do very well with canceling out noise. It helps me focus at work as my coworkers tend to talk a lot. So that's a big plus for me. I am very happy with these ear buds and highly recommend them.
I was a bit wary of these simply because I've never been a huge fan of the 'in-the-ear' type buds, but this new design works really well. They stay put, have great sound and yet you don't have to jam them deep in your ear to get them to stay in place. I wouldn't say the are quite as secure as the 'over the ear' style but for everyday use they have never felt like they would fall out.I don't normally make or take calls with my headphones but I ran a few test calls with friends. Sound quality on my end was terrific, easy to answer/hangup/decline calls with the touch controls and friends said the sound quality of the mic was great too. These were indoor calls so I can't speak for any wind noise issues.
