I bought it from a Sony store. Of course, I read reviews that the battery is weak, but I didn’t think that to such an extent, I listened to the AAC mode at a volume of about 80% for half an hour and already 50% of the charge was gone, as a result, it was enough for 1 hour, where it suits! Horror. Then, for some reason, I only charge 70-80% in the case, and this, even with such a bad battery, simply does not fit into any framework. Bluetooth "falls off" 3 times a day, you have to reconnect. In general, this alone is enough as a minus for such expensive headphones. I do not advise buying, I want to return, though I'm not sure that they will accept it. I supplement the review: I used them for another month, the attitude only got worse, I was very upset with the purchase, it’s very simple . After ating the firmware on the AAC, then one or the other earphone turns off, very often, even if I just sit and listen to music, and the phone lies nearby. It's just annoying already . Money down the drain . (((
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