This is not good for making phone calls. I paired them first to my LG V20. (update)Seller is working with me on solving the problem. As for the mic itself, I did run into an issue under Windows 10 that my system was trying to use the mic as an output device as well as an input device. Superschneller Versand u unkomplizierte Rückabwicklung. I have been wearing these slippers for less than a week and the toe and heel parts are flat as paper now. They are quite springy to walk in. Unfortunately, there is no way to independently adjust any of the side tone settings. This thing stinks, literally. 4 holes in my bathroom wall and 20 minutes later its finally installed.