The R2 is an aerodynamic Smart Cycling 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’s impressive featureset is a nod to Sena’s original R1 smart helmet, but the R2 takes things to the next level with a new design and an integrated taillight.
 
General features
- Built-in speakers and microphone
- Bluetooth® Intercom
- Smartphone pairing
- Integrated LED taillight
- Safety certified
- In-mold polycarbonate helmet shell with EPS liner
- Nylon Chinstrap
- Weight: 394 g (M size)
- Operating Temperature: -10˚C - 55˚C (14°F - 131°F)
- Storage Temperature: 15˚C - 30˚C (59°F - 86°F)
 
Bluetooth
- Bluetooth 4.1
- Headset Profile (HSP)
- Hands-Free Profile (HFP)
- Advanced Audio Distribution Profile (A2DP)
- Audio Video Remote Control Profile (AVRCP)
 
Intercom
- Working Distance: Up to 900 meters (0.5 miles) in open terrain
- Supports up to 4 riders
 
Battery
- Talk Time: 11 ~ 18 hours (varies based on LED use)
- Charging time: 2.5 hours
- Fast Charge: 20 minutes of charging equals 5 hours