I use a Sena 20 on my bikes. Also have bikes wired in with a Sena Free wire set up. I can route pretty much anything into my helmet. Sound quality is much better that the corded systems, plus with cords I seem to have to replace cords every year or so. I have a F6B and full wing and Sena wired up to free wire on both. On full wing I have am/fm, weather band, telephone and everything extra it will do, Sirius radio, CB radio, a MP3 player, aux stick in saddle bag on B in the trunk on wing, and my Zumo 660. Plus bike to bike intercom for me and wife and can pair up to anyone traveling with us with a Sena. F6B has everything but the CB radio. Battery life is 8 to 10 hours plus I have bike wired so I can charge on the go if needed. I am very happy with the Sena 20