My wife and I use these Scala Rider units mounted in our full face helmets. Highly recommend these! Our two sets are paired for bike-to-bike intercom and the units also feature Bluetooth connect to your smart phone so you can recieve and make phone calls (voice dial-just say the name and my Droid makes the call) also listen to music from my phone's playlist or internet like Pandora.
LINK The unit has a very good FM reciever with 5 station presets. There is a port to plug in your MP as well.
The sound quality is very clear and the unit automatically adapts to ambient noise and adjusts the volume up to compensate.
All controls are just 4 buttons that are easy to feel and operate with gloves on.
I installed them with the left speaker tucked behind a helmet pad for safety. (speakers are not shown in this picture)
