HJC SMART 21B - About the Smart Hjc 21 B; Product Features

SMART HJC 21B 2
nd
Gen Standard Motorcycle Bluetooth
®
Communication System for HJC Helmets | 5
1. ABOUT THE SMART HJC 21B
1.1 Product Features
Bluetooth
®
5.1
Intercom up to 1.6 km (1.0 mi)*
Four-Way Intercom
Audio Multitasking™
Custom Helmet Fit
* in open terrain
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