The SMART HJC 2nd generation premium Bluetooth communication system models implement an all-in-one design, that is fully integrated into the helmet, allowing you to feel the optimal weight balance and aerodynamic performance while riding. It can be installed on RPHA 71, RPHA 91, RPHA 31, or i71. Co-developed with SENA and tailored specially for HJC helmets. 
The enhanced sound provides users with an HD speaker, to enrich mid-to low-pitched sounds.
The smartphone app allows you to quickly and easily control various functions of the SMART HJC communication system and also review the Quick Start Guide.
 
Features
- Powering On/Off, Call answering / Hang-up, Volume +/-, Radio Connect (FM),
- Long-lasting Power (Up to 13 Hours)
- Battery Unit & PCB Unit
- Boom-Type mic: Applicable for Modular & JET helmets.
- Wire Type mic: Applicable for Full Face helmets.
- Bluetooth 5.1
- Advanced noice control
- Intercom range 1600m
- Voice prompt
- HD speakers
- Audio multi-tasking
- 4-way Intercom