My wife and I use the Starcom1.
http://www.starcom1.com/ The noise reduction and the VOX (voice activation) are both splendid, wind noise is minimal, at any speed, or even with an open helmet. It works great rider to passenger, plays my MP3 player, and a cell phone, GPS, or other input. Saw a glowing review in the BMW Motorcycle Owners Association magazine, and bought it a couple of years ago. Absolutely no regrets. It is hard wired, however, but the earphone and mike installation in the helmets wasn't difficult, and doesn't get in the way at all when we aren't using the Starcom. Several models available now. We are thinking of adding one to her Spyder, and using radio to go bike to bike.
-Scotty