Very good sound! Works very well with the LG Optimus L5 (bluethooth v 3.0) and my motorcycle X 2013 (bluethooth v4). The radio does not work with because the phone needs the cable of the hands-free kit for antenna. And when you plug headphones android accepts that one or the other. The quality of the microphone is correct. If you whisper it is not very clear but if you speak normally, as if the person was at 1m, no worries! 4 stars because the buttons are a bit chips! For the price, we must rush!