I have tried SO MANY different brands and styles of Bluetooth earbuds through the years and these are the ONLY ones that actually stay in my ears comfortably. Full disclosure, my ears are really small and have some slightly “abnormal” features, lol. Sorry not sure how to describe but basically absolutely no ears buds will stay in my ears unless I sit perfectly still, if I even turn my head they fall out. And no it’s not because of the size of the tips. Sure I could shove the smallest size tips deep into my ears unless canal, but that hurts, A LOT. Most ear buds, for example AirPods, depends on both the ear tip size as well as the way they sit in your ear (the piece that sits in that small space right above your ear lobe…) in order to stay in place. Well my ears don’t have that small space to help hold them in place. Anyways. I’ve tried other ear hook types, but they’ve all hurt my ears after about an hour of wear. I am not an expert on headphone designs but I can say for certain that these are perfection for me. It took me 2 min to fit them comfortably in my ears, I can wear them for so long i actually forget I even have them on if I’m not listening to music. The sound is amazing (granted I’m not an audiophile who cares about or notices small details in sound quality), battery life is amazing, I love the case, small but not so small I could lose them and although I’ve read some reviews complaining about having difficulty figuring out how to put them in the charger correctly, I honestly cannot understand how that is possible, they are magnetized so just put them near and they just snap into place… I have absolutely no complaints and I LOVE the app!