I installed this in around 20 mins whilst watching the YouTube video from Cardo as a guide. I have no idea how it works properly yet as it’s got a load of features I don’t need, but whilst out riding I was able to pair with another unit and chat for hours. I also used Siri to make a phone call with no problems so as they’re the only 2 things I need it for I’m very happy! Seamless fit and easy to use perfect bit of kit