I bought them because I saw good reviews about the sound but not many talk about the microphone. The sound is very good and they are comfortable, but they are not useful for talking on the phone or even sending audio. I know there are better models for making calls but they should be MUCH better at this point. The noises of anything that are around you will be heard much more than your own voice and can be very annoying for those who are listening to you on the other side. At this point I don't recommend it at all. The usability is good (like the other products of the brand) and the sound is good too. But the Dual-Mic Noise Cancellation Technology is a big lie.