Sena SMH10R Low Profile Motorcycle Bluetooth Headset and Intercom Bluetooth 3.0 with up to 8 hours of talk time. Charging time: 2.5 hours Universal Intercom: Allows allows pairing to another brands of Bluetooth headsets AudioVideo Remote Control Profile AVRCP technology allows you to play, track forward and track back while listening to music using your Sena 10R The Sena 10R features a four-way conference intercom capability. This feature also allows intercom participants to join cell phone conference calls