I just thought I'd make a quick mention of how awesome the Sena SMH10R is! My order arrived yesterday and last night I fitted the Sena SMH10R in my Shoei XR-1100. Firstly I was impressed how low profile it is. I was a bit worried about having a big lumpy unit hanging off the side of my helmet, so went for the 10R instead of the older models. This was perfect! Even with the battery you need to attach to the back of the helmet, honestly you don't notice it at all when you look at the helmet. Perfect.. but what's even better is the functionality and the sound. The speakers fitted perfectly in to the ear gaps in my helmet. They sound great too. You can turn them right up, too loud even. I like to ride with them down so I can still hear the traffic around me (I commute daily in Sydney.. you need to hear it!). Even with the sound down, the music I was playing with my paired iPhone was very clear. But what makes it even better is how I can use it with the iPhone's Siri. I can be riding along and ask Siri what time it is, to play a specific song, call someone, type a txt, ask about the weather .. the list goes on. With the voice activated commands enabled, I can also answer a call by saying "hello" and it answers without having to hit any buttons. I used it this morning to take a call and the guy who called me had no idea I was even riding.. it was that clear. Very impressed.. only day 1 and already can't stop raving about it. Highly recommended.