I have those. The reviewer is absolutely correct on all counts. Literally life changing, or at least morning run changing. I work out harder because I’m not afraid of my ear buds falling out. No more panicking because a bud almost followed a clown down a storm drain. I’ve had them five or six years and they are still as good sounding, fast charging and long battery life’d as the day I met them. If you think you might have a use for them, get them.