Helmet intercom HJC 21B

SMART HJC 21B is the second generation standard Bluetooth communication system model that supports 21B compatible HJC helmets. Based on the BT 5.1 low-power system, the 21B offers Bluetooth four-way intercom functionality with over 22 hours of talk time.
The enhanced sound provides users with an HD speaker to enrich mid-range and low-end sounds.

SMART HJC 2nd generation high-end Bluetooth communication system models implement an all-in-one design that is fully integrated into the helmet, allowing you to experience the optimal weight balance and aerodynamic performance while riding. SMART HJC 50B and 21B can be installed on RPHA 71, RPHA 91, RPHA 31 or i71 helmets. Developed together with SENA and specially adapted for HJC helmets.

▪ Power on/off, answer/mute, volume +/-, radio connection (FM);
▪ Long-lasting power (up to 13 hours);
▪ Battery pack and PCB block;
▪ Boom type: applicable to modular and JET helmets;
▪ Cord type: Applicable to Full Face helmets;
▪ Bluetooth 5.1;
▪ Enhanced noise control;
▪ Intercom 1600m;
▪ Voice prompt;
▪ 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 review the short user manual.