Thanx for bringing this to the surface again. I have failed to mention the wife's and my acquisition Spring of 2012. I bought a set of Scala Rider G9s and we love them. We wear helmets whenever we ride, and this set does everything and more....now and then distance is too short when we are a full dune apart, but everything else totally rocks.....bluetooth music streaming, intercom, text and phone conversing by VOX, when ambient noise raises so does the music volume perfectly....and a bunch more perks!Looks like an old thread, but for what it's worth I have had good luck with Scala products. I have some Q2 Multisets and Q2 Prosets. Work well in a side by side and work as well between quads or other vehicles.