In the application, you can customize it for yourself, but it is not finished, or I was so lucky. The commands are configured every other time, the interlocutor hears either normally or from afar, and it’s as if I’m sitting at the bottom of the barrel (how lucky). In general, they do not fall off the phone, and that's okay, they keep charging normally. Unfortunately, for me the important point was to talk through them, but alas. It was too late to return, and I was too lazy, to be honest. A friend has a previous version and no problems with it. If you need music, then take it, the noise reduction works properly. If you need to talk on the phone often, then it is better to consider other ears.