Stay safe and connected to other cyclists on the road with the SENA R2 & R2 EVO smart bike helmets. They feature a Bluetooth intercom with a range of up to 500 meters to connect to up to 4 riders. Moreover, these smart bike helmets are equipped with built-in speakers located just above the ear to allow awareness of surrounding sounds like traffic. At the front of the helmet is a microphone with Advanced Noise Control technology to transmit your voice clearly. Furthermore, the SENA R2 & R2 EVO prioritizes your safety with a built-in taillight to improve your visibility on the road. With 3 brightness settings, you can enhance your clarity in various lighting situations. Finally, the protective in-mold polycarbonate shell protects your skull in the event of an accident.