I have purchased two ChatterBox XBi units so that my wife and I can talk to each other on the way to Sturgis from San Diego, CA. Installed one of them in my half shell; no problems Installed the other in my wife's 3/4 shell helmet; no problems. Both helmets have the wires tucked neatly under the liner. Boom mike reaches just far enough on hers. Mine has plenty of reach. Paired them to each other (a bit of a hassle). Programmed them to each of our cell phones (very simple). Hooked up my iPod with accessory CB cable (again, very simple). All sounds were clear and readable, but this was in my family room. So far: 1. Look good 2. Easy to mount 3. Fairly easy to program (hold the button long enough) Road report to follow. Is anyone else using them? Can I hook them to my bike battery to extend the life over a four day ride? Only comes with an A/C charger, which will not work while camping without electricity!