The Sena pi is a universal Bluetooth® Intercom system that turns your favorite outdoor-sport helmet into a Sena smart helmet with 2-way Bluetooth intercom. A compact headset, pi's design makes it easy to attach to most cycling or skating helmets, or any other helmet with a strap width of up to 18 mm (0.7 in). Device operation utilizes a two-button layout located on the left speaker. Just clip the Sena pi to your helmet straps, hold the buttons to turn on the device, and #RideConnected!
 
General features
- Dimension: 30 mm x 59 mm x 13 mm (1.2 in x 2.3 in x 0.5 in) each unit
- Weight: 37 g (1.3 oz)
- Mountable helmet strap width: up to 18 mm (0.7 in)
- Operating temperature: -10˚C - 55˚C (14°F - 131°F)
- Charging temperature: 0˚C~45˚C (32°F - 113°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: 400 meters (0.25 miles) in open terrain
- Support up to 2 users
 
Audio
- Noise Cancellation: Advanced Noise Control™
- Codec: Built-in SBC Codec
 
Battery
- Talk time: up to 6 hours
- Charging time: 2.5 hours
- Type: Lithium Polymer Battery
 
Certificates
- CE, FCC, IC