Sena M1 Smart Bluetooth Communications Mountain Bike Helmets (Matte Black, Size M)

Built-in audio communication system allows you to speak to fellow cyclists and listen to music Connect with up to three other riders for 4-way Bluetooth Intercom Bluetooth Intercom effective range: 900 meters / 980 yards Bluetooth connectivity pairs to your smartphone so you can access features on-the-go Safety and security with an integrated tail light and a comfortable and secure design Three-button layout manages a variety of features, including volume level, intercom connectivity, and more.