The SMART HJC 21B is the 2nd Generation Standard Bluetooth Communication System model that supports 21B compatible 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-pitched sounds.

Applicable Models
• RPHA 2nd Gen Series: RPHA 31/ RPHA 71/ RPHA 91
• FULL FACE: i71

Control Unit
• Powering On/Off, Call answering / Hang-up, Volume +/-, Radio Connect (FM)

Main Unit
• Long-lasting Power (Up to 13 Hours)
• Battery Unit & PCB

Mic Set
• Boom-Type: Applicable for Modular & JET helmets
• Wire Type: Applicable for Full Face helmets

21B Features
• Bluetooth 5.1 version uses less power to transmit and benefits from a faster and more stable connection
• Advanced noise control
• Intercom 1600m
• Voice prompt
• Universal intercom
• HD speakers
• Audio multi tasking
• 4-way intercom

SMART HJC Mobile App
• Quickly and easily control various functions of the SMART HJC communication system and also review the Quick Start Guide

Warranty
• All Smart HJC products have a 1-year warranty from the date of purchase. This warranty doesn't apply to any problems that arise from user's misuse, negligence, modifications, accidents, etc.