The HJC Smart 20B Bluetooth Communication Device is a Bluetooth communication system co-developed with SENA tailored specially for HJC s helmets.Bluetooth 4.1Audio multi-tasking8-way rider intercomFM RadioIntercom up to 1000m metersRemote controlVoice commandAdvanced Noise ControlMusic sharingThe HJC Smart 20B Bluetooth Communication Device can be installed on HJC s various models and due to compact size and aerodynamic design of the Bluetooth unit, it enhances overall look and aerodynamic design of the helmet. Based on SENA s best-selling model 20S, the 20B model provides optimal Bluetooth environment with intuitive operation and easy installation of the unit. Please enjoy SMART HJC 20B s multi-function: phone call, listen to music, GPS guide and intercom.The SMART HJC 20B provides various functions such as group intercom for optimum riding experience. Universal Intercom SMART HJC 20B can be connected to various Bluetooth communication devices, and the Noise Control feature suppresses