Fully Bluetooth integrated bicycle helmet with HD Audio speakers and microphone. Talk with up to 3 other friends via Bluetooth intercom over up to 900 meters (0.5 miles) in open terrain. Connect with your phone for fitness aps, GPS, music or to take or make phone calls. User-friendly three-button design on the side of the helmet makes it easy to navigate and use. Sena's patented Advanced Noise Control technology for minimal wind and background noise allows you to communicate easily while riding. Compatibility with additional Bluetooth accessories and smartphone apps for larger intercom groups and feature controls. Operating time: 12 Hours talk time, Charging time 3.5 hours with Lithium Polymer Battery, Weight 380 g (13.40 oz). 3 sizes S, M(55-59cm), L(59-62cm) with Sena Spin Lock for adjustable sizing. 2-year warranty and firmware upgrades.

Brand: Sena

Model: R1 Smart Helmet

Length: 13.2

Width: 10.3

Height: 7.5

Weight lb: 2.8

Part Number: R1-STD-ET-M

Barcode: 885465006596