Received headphones, opened, began to try. I use an iPhone. I connected, listened to music, decided to try noise reduction and transparency and found that it canโt be configured in any way on iOS (I didnโt hear anywhere in the reviews that they are not supported, I thought there was an application for them. There is an application for iOS, but there is no support for this particular model. I was upset, but this is not the main problem). I decided to randomly poke the headphones in order to understand how to turn on / off noise reduction and ambient. Transparency mode turned on and white noise went in the right ear. Poked again, turned on noise reduction, the same noise in the right ear. There is no noise without modes. I decided to take an android from a friend. I made the settings, ated the headphone software, but it still did not help. I want to return/exchange. Apparently, therefore, Samsung quickly stopped releasing them and released version 2, a lot of reviews with marriage.