Great headphones, quality stuffing. Waterproofing would be and everything would be quite chic. Suitable for those who like to work in a relaxed environment or travel frequently Has some pros: 1. Noise canceling at altitude 2. Sound quality is great 3. A good hard case that can be put in hand luggage Has some cons: 1. In the early days, I thought that everything was bad with the battery, it was discharged too quickly, then everything returned to normal. strange moment 2. Less responsive sensor than on my previous model (Sony WH-XB900N) (for my taste) 3. As far as I understand, there is no waterproofing