This is a single intercom unit for one helmet

The SMART HJC 2nd generation premium Bluetooth communication system model implements an all-in-one design, that is fully integrated into the helmet, allowing you to feel the optimal weight balance and aerodynamic performance while riding.

Based on the BT 5.0 low power system, the 50B (based on SENA 50S/50R) features both the MESH intercom and 4-way Bluetooth intercom features. The enhanced sound system properties include audio multi-tasking, sound equalizing, advanced noise-canceling, and more. The SMART HJC 2nd generation also comes equipped with HD speakers to enrich mid-to low-pitched sounds.

• Mesh intercom unit and Bluetooth 5.0, up to 9 rider network
• Two control units, Power, FM radio, volume and call answering
• Intercom range up to 1.6KM (in ideal conditions)
• Audio multitasking with music sharing and advanced noise control
• Boom (open face)and wired type (full face) microphones included
• HD Speakers
• FM Radio
• Multi Language voice commands
• Compatible with Siri and Bixby digital assistants
• Up to 13hrs battery life
• Smart HJC mobile app required (available free on app store/Google play)

APPLICABLE MODELS

• RPHA 2nd Gen Series: RPHA 71/ RPHA 91/ RPHA31
• FULL FACE: i71

The Smart HJC50B is equivalent to Sena model 50R