Horse Power HSP-6RMBT Motorcycle, Ski, ATV, Snowmobile, Helmet Bluetooth Intercom Headset Connects Upto 6 Riders - Long Range 1000M (Pair) Multi-interphone For Motorcyclists Communication system connects upto 6 riders 1000m motorcycle, ski, ATV, snowmobile intercom bluetooth Upto 7 hour talking time Long range of 1000m maximum intercom