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Based on the Bluetooth 5.1 low energy communication system, the 21B offers 4-way Bluetooth intercom functionality, with more than 22 hours of talk time. Second generation compatible with HJC helmets, which users can easily mount. Enhanced sound provides HD speakerphone, to enrich mid to low pitch sounds.
More info
The second generation SMART HJC 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.
HJC 21B SMART Intercoms can be installed on the RPHA 71, RPHA 91, RPHA 31 or i71 helmets. Developed in conjunction with SENA and specially adapted to HJC helmets. *All SMART HJC devices are sold separately.
Control unit
Power on/off, call answering/hanging up, volume +/-, radio connection (FM),
Main unit
Long lasting power (up to 13 hours)
Battery unit and PCB unit
Microphone Set
Boom-Type: Applicable for modular and jet helmets.
Wire Type: Applicable for full-face helmets
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.
✓ Bluetooth 5.1
✓ Advanced Noise Control
✓ Intercom up to 1.6 km.
✓ Audio multitasking
✓ 4-way intercom
✓ HD speakers
✓ Helmet integration.
✓ RPHA 2nd generation RPHA series: RPHA 31/ RPHA 71/ RPHA 91
✓ Integral: i71
Data sheet
| Sku | 90060008 |
| Promotion | 10% discount on cart |
| Color | Black |
| Function | Communication |
| Brand | HJC HELMETS |
| Family | Motorcycle intercoms |
| Color | White |
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