HJC Smart 50B communication system

The SMART HJC 21B is the 2nd Generation Standard Bluetooth Communication System model that supports 21B compatible HJC helmets, with structural interfaces that users can easily mount on HJC helmets. Based on the BT 5.1 low power system, the 21B offers Bluetooth 4-way intercom functionality, with over 22 hours of talk time. The enhanced sound provides users with an HD speaker, to enrich mid-to low-pitched sounds.Features:• Can be installed on RPHA 71, RPHA 91, RPHA 31, or i71• Long-lasting Power, up to 13 Hours• 2 microphones included. Boom-Type: Applicable for Modular & JET helmets. Wire Type: Applicable for Full Face helmets• The smartphone app allows you to quickly and easily control various functions• Bluetooth 5.1• Advanced noise control• Range: 1600m• Voice prompt• Universal intercom• HD-speakers• Audio multi-tasking• 4-way intercom• 1-year warranty