The SENA SMH10 Bluetooth Headset and Intercom System was designed to keep you connected to your riding companions over longer ranges for conversation and music sharing up to 900 meters (980 yards). When paired with a Bluetooth-enabled phone, it ll also let you make hands-free calls.Talk time: 12 hours and stand-by time: 10 daysHeadset Profile (HSP) and Hands-Free Profile (HFP)Advanced Audio Distribution Profile (A2DP)Audio Video Remote Control Profile (AVRCP)Bluetooth 3.0 communication system900 meters (980 yards) intercom in open terrainAdvanced Noise Control with Wind noise reductionBuilt-in SBC CodecWide volume controlAuxiliary audio-in connection via 3.5 mm jackLithium polymer with 2.5 hour charge timeCE, FCC and IC certificationThe SENA SMH10 Bluetooth Headset and Intercom System features a Helmet Clamp Kit and Boom Microphone. The Jog Dial, meanwhile, makes for an intuitive user interface that is much easier to control while riding. The Jog Dial default is volume control, and pus