Two years later, the updated Scala Rider Q2 brings something even better. Now you can talk to other Q2 users up to a distance of 500 meters (1640 feet), in full-duplex. The range might be limited, but this disadvantage balances out with the fact that you don't have to push any button to talk and that you don't have to stop speaking in order for your partner to say something.
Because, like its former version, the Q2 is Bluetooth-enabled, you can make and receive phonecalls and get vocal instructions from your GPS. And, if you get bored of talking to people, you can always use the FM radio feature.
via