The price-to-quality ratio of these wireless earphones makes them a fantastic purchase. Ideal for the person who commutes to work in the city on the train each day and appreciates listening to music in great quality. These are some advantages: More sound, more sound, and yet more sound. Sony makes some of the best headphones available. The charge is sufficient for anywhere between 25 and 28 hours, depending on how everything is organized for you. Adaptive control of the sound. The noise reduction is just wonderful, and it is the best I've ever had the opportunity to experience. Got cons: 1) Strangely enough, this is the situation regarding noise reduction. If you unscrew it all the way, then the membranes in your headphones will close, which will produce a vacuum effect. This, in turn, will lead to the fact that any sudden movement of your head will cause the membrane to vibrate in the headphones, which will result in an unpleasant third-party noise from the headphones themselves. If you unscrew it all the way, then the membranes in your headphones will remain open. 2) This is the consistency of the connection; if you listen in ldac (and in fact, for this we buy headphones that cost 30k), then you need get used to the fact that the music will stutter constantly and there will be many disconnections.