The SCALA RIDER Q2 Multiset is the latest and greatest among the SCALA RIDER line of Bluetooth helmet mounted headsets. The SCALA RIDER Q2 Multiset by Cardo is a technological gem that allows bikers to receive GPS voice instructions, communicate with the passenger on the back seat, to conduct calls on their mobile phone and listen to the embedded FM radio. Last but not least, the Scala Rider Q2 Multiset offers biker-to-biker communication.