BOLD MAGENTA part numbers are new for 2025 PARTSCANADA.COM 2025 | ATV/UTV AUDIO/COMMUNICATION & MOUNTS 146 DESCRIPTION PART # Smart HJC 21B helmet communication system 4402-0958 SMART HJC 21B HELMET COMMUNICATION SYSTEM •Co-developed with Sena specifically for HJC helmets •5.0 Bluetooth® •One mile intercom range with four-way intercom • Use Bluetooth for GPS, phone calls and listening to music •Advanced Noise Control reduces wind and background noise •Battery power lasts up to 13 hours •Upgradable firmware •Available in matte black •Includes boom and wire type mic sets • Compatible with HJC models: RPHA 31, RPHA 71, RPHA 91 and i71 DESCRIPTION PART # Smart HJC 20B helmet communication system 4402-0800 SMART HJC 20B HELMET COMMUNICATION SYSTEM •Co-developed with Sena specifically for HJC helmets •Modeled after Sena’s 20S •4.1 Bluetooth® •One mile intercom range •Universal intercom connects multiple devices • Uses Bluetooth for GPS, phone calls and listening to music •Audio Multitasking™ lowers music volume during conversation; returns to original volume when conversation ends •Advanced Noise Control™ reduces wind and background noise •Battery power lasts up to ten hours •Upgradable firmware •Includes boom and wire type mic sets •Compatible with new HJC models: Carbon RPHA 11 Pro, Carbon RPHA 70 ST, Carbon RPHA 90S, RPHA 90S, Carbon F70, F70, i10, i90,V90, C91 •Available in matte black
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