I bought these to replace my Galaxy Buds + (which I absolutely adored), only to find they changed the shape of the ear hole connector. These fall out of my ear anytime I move my jaw or body. I primarily use them for working out and running and they stay in for about 3 steps before needing to be pushed back in. When they are in, the sound is amazing and the active noise cancelling is wicked but all of that is meaningless because they wont stay in your ear to experience it.