The SMART HJC 21B is the 2nd generation Bluetooth communication system that supports 21B-capable 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 tones.

The SMART HJC 2nd generation premium Bluetooth communication system models implement an all-in-one design, which is fully integrated into the helmet, allowing you to feel the optimal weight balance and aerodynamic performance while riding. The SMART HJC 50B and 21B can be installed on the RPHA 71, RPHA 91, RPHA 31, F71, F31, i91 and i71. Developed together with SENA and made especially for HJC helmets. *All SMART HJC devices are sold separately.

CONTROL UNIT
Switch on/off, answer/hang up calls, volume +/-, radio connection (FM),

MAIN CONTROL
Long-lasting power (up to 13 hours)
Battery Unit & PCB Unit

MIC SET
Boom type: Suitable for Modular & JET helmets.
Wire type: Suitable for integral helmets.

Bluetooth 5.1
Advanced sound control
Intercom 1600m
Voice control
Universal intercom
HD Speakers
Audio multitasking
4-Way intercom

The smartphone app allows you to quickly and easily control various functions of the SMART HJC communication system and also view the quick start guide.