HJC Helmets SMART HJC 21B 2nd Gen Motorcycle Bluetooth Communication System

The SMART HJC 21B is a second-generation Bluetooth communication system designed for easy integration with select HJC helmets. Built on Bluetooth 5.1, it features 2-way and 4-way intercom functionality up to 400 meters, HD speakers for improved mid-to-low sound quality, and advanced noise control. Includes voice prompts, universal intercom support, and audio multitasking for seamless communication and audio streaming. Compatible with models including RPHA 91, RPHA 71, i71, F71, i91, and more.

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