Sena SMH10-D-01SM Snowmobile Bluetooth Headset / Intercom with Boom and Wired Microphone (Dual) Long-range music sharing and intercom for motorcyclists--up to 900 meters (980 yards) Bluetooth 3.0 connectivity to listen to and share music, make phone calls with speed dialing, and participate in a four-way intercom conversation Advanced Noise Control technology cuts down on background noise for both incoming and outgoing audio Includes Microphone Clamp and Universal Microphone Kit Up to 12 hours of talk time and 10 days of stand-by time on a single charge