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Voice-Activated Digital Assistant Access
Cheek pads interchangeable between all sizes
Integrated LED lights indicate device status and flash red if a crash occurs
and shoulders increase mobility
Sena SF4 Bluetooth Headset Single HJC Full Face Helmets Group Voice-Activated Digital Assistant AccessRider to Passenger or Small Group Communication For riders looking to communicate with their passenger, the SF2 provides simple Rider to Passenger 2 way intercom communication up to 800 m (880 yards) in open terrain. For those who ride in small groups, the SF4 is equipped with 4 way intercom over 1. 2 kilometers (0. 8 miles). Both models let riders enjoy smartphone connectivity. Riders can listen to music and use the intercom simultaneously using the
