My wife and I both have Nolan N43E open face helmets with the built in Nolan comm systems. They have a good battery life and worked well on our long trip last year. Bike-to-Bike range is about 3/4 mile. The interface is a little funky as compared to our previous Scala Rider Q2 system but works as expected once you get used to it. I use the system to take calls while I commute between client sites and people can't tell that I'm on a motorcycle. It pairs easily with my Samsung phone.
