The M1 mountain bike helmet brings wireless communication audio to the trails. Sena’s proven Bluetooth communication tech breaks barriers, creating a shared riding experience. Talk to each other. Make phone calls. Jam to your music. The M1 makes sure you #RideConnected.
 
General features
- The M1 Bluetooth® Intercom connects up to 4 riders for seamless intercom communication
- An integrated microphone tucked inside the brow of the helmet
- Recessed speakers deliver audio while maintaining ambient awareness
- Connect to your smartphone with Bluetooth® 4.1 and for music, GPS directions, phone calls, and more.
- Manage functions through the three-button control layout on the helmet
- In-mold polycarbonate helmet shell with EPS liner
- Nylon Chinstrap
- Weight: 430 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
 
Audio
- Noise Cancellation: Advanced Noise Control™
- Codec: Built-in SBC Codec
 
Battery
- Talk Time: 11 ~ 18 hours (varies based on LED use)
- Charging time: 2.5 hours
- Fast Charge: 20 minutes of charging equals 3 hours Intercom 
- Type: Lithium Polymer Battery
- Charging Temperature: 0˚C~40˚C (32˚F~104˚F)
 
Certificates
- Electronics: CE, FCC, IC
- Helmet: CE EN 1078, CPSC 1203
* Complies with U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older