Ordered the multiset from MotoMummy and just got it in this afternoon. Haven't had much of a chance to test it out, instructions said to charge it for 5 hours without interupption initially to avoid damage to the battery... By the time it was on the charger for 5 hours I had already had a couple beers and wasn't gonna get out on the bike lol
I put the helmet on in the house and tested out the FM Tuner, which sounded pretty damn good. Loud and clear.
The speakers are extremely thin. I had a Chatterbox at one point...the speakers were so massive on that thing that I couldn't keep my helmet on for more than 5 minutes without my ears feeling like they were on fire. I can't even feel the speakers in the helmet with the Scala.
Bluetoothed up to the iPhone and called the wife. Could hear her clear as day and she could hear me better than if I were talking in to the phone itself.
The only thing I don't like about it, is it doesn't have the A2DP technology which allows you to stream music over Bluetooh. You have to wire in to your MP3 player for the music...or you can hook it up to an FM Transmitter and listen to it over the FM tuner built in to the module.
It's Extremely light... can't feel it on the helmet like I could with the Chatterbox. And it's 100% waterproof, so getting caught in the rain isn't going to damage it... Chatterbox was not waterproof, it didn't like the rain very well.
It's decently affordable. Like I said, I bought the multiset... so it came with two sets. They can be used as a helmet to helmet intercom system with two other headsets (3 total) but it's not full duplex, you can only talk to one other headset at a time. I split the cost with a buddy of mine, ended up being $132.50 a piece (plus I got a free motomummy beer koozie out of it
Will post up and update the thread after we've got a chance to ride with them. I have no doubt the quality will be just as good while riding.