Very good sound, the radio works well, it pairs two phones and works excellently with an old NOKIA N8 that has voice dialing without internet and automatic call answering. The negative thing is how the buttons work. I would prefer to answer or end the call from the middle button, which is large, and not from the small ones, because while moving you cannot easily look for the small buttons. That is why I gave 3 stars. Another negative is the cables. Very thin and can easily be cut. Care is needed when installing. The mount is adhesive, so it is not easy to switch from a winter closed helmet to an open one. It forces you to buy another mounting set. A Cardo scala rider I had did not have such issues, but you could not replace the battery, which died. In trying to change it, I essentially damaged the insulation and in the end the device broke too. I hope that when needed Midland's distributor will replace it.