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HJC Smart 21B Communication System Single Pack

The SMART HJC 21B is the standard 2nd generation Bluetooth communication system that supports 21B compatible HJC helmets and has structural interfaces that users can easily attach to HJC helmets. Based on the BT 5.1 low-power system, the 21B offers a 4-way Bluetooth intercom function with a talk time of over 22 hours. The enhanced sound provides users with an HD speaker that enriches mid to low tones.

Features:

• The 2nd generation SMART HJC premium Bluetooth communication system models feature an all-in-one design that is fully integrated into the helmet
• Developed together with SENA and tailored specifically for HJC helmets.
• With the smartphone app, you can quickly and easily control various functions of the SMART HJC communication system and also view the Quick Start Guide

Specifications:

• 4-way intercom
• Universal intercom with a range of up to 1.6 Km (on open terrain)
• Audio Multitasking
• Customized helmet fit
• HD speakers
• Audio Multitasking

Bluetooth:

• Bluetooth 5.1

Control Unit:

• Power on/off, call answer/hang up, volume +/-

Main unit:

• Long lasting power (up to 13 hours)
• Battery unit & PCB unit

Mic Set:

• Boom type: Applicable for Modular & JET helmets
• Wire type: Applicable for Integral helmets

Compatible Helmets

The HJC Smart 21B Communication System by Sena is designed specifically for select HJC helmets with integrated SMART HJC mounting provisions. It delivers a clean, aerodynamic installation and factory-style fit.

Compatible Models

RPHA 72

RPHA 72 Carbon

RPHA 91

RPHA 91 Carbon

RPHA 60

RPHA 31

F71

F71 Carbon

F31

i71

i91

Please Note

The SMART HJC 21B is only compatible with the latest generation of SMART HJC-ready helmets. It is not compatible with older SMART HJC models including:

RPHA 70

RPHA 90S

RPHA 11

i70

i90

i100

For the best performance and fitment, ensure your helmet is one of the compatible models listed above.