I will say, if you have bunyons, these wont pinch. They work, feel better than my last under armor ones. Thanks for the waste of time and money charger case can double as backup battery if you are in a pinch. Very disappointed, now I have only one earbud working. Battery Life: When I first got them I made sure to charge them completely. Wide variety of exercises possible - comes with suggested exercise, but you can make your own variations, too. Soundcore is hugely successful brand by Anker, and a popular choice on Amazon. My only issue is that if you order your true size, they might fit a bit too snug and might smash and hurt your toes. Great bass , comfortable and well made.