I took it for 5k on Ya. Market. I use them for 3 - 4 hours a day in the music mode louder, noise reduction ON. Since I travel by train, without noise reduction anywhere and it really saves, the train is not audible both in the vestibule and in the cabin. Also tested along a six-lane road - the same effect. Autonomy is good, no problems. Microphones on 4+ do not work out very well when people are talking nearby. Better than micro only in more expensive headphones, the microphone level when communicating directly through the phone is not available at all for any headphones, since the distance between the two microphones of the phone is quite significant, which allows you to cut off unnecessary noise. I use the sound transmission mode purely for safety. Buttons do not respond to false positives. The case should only be worn in a case, it is available at known sites. Definitely recommend to buy
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