The R2 is an aerodynamic helmet designed for road cyclists. The R2 features a Bluetooth® Intercom communication system for rider-to-rider conversation, plus smartphone pairing for music, GPS, cues from fitness apps, and more. The R2 features a seamlessly integrated microphone and speakers, which are located just above the rider's ear. Sena's Bluetooth Intercom technology allows for up to 4 riders to connect and chat from helmet to helmet at a range of just over a half mile (900 meters). The sleek helmet also features a built-in taillight, improving your visibility to others on the road.