I wear a SHOEI full face and use the Chatterbox XBi2.Buggered if i know what model helmet as I bought it back in 2005.I ended up carving some foam out to make the speakers recessed as the original set up was pressing against my ears.Trouble is now theyre too far away now .Ferk!!! Still , I can hear fine all music and comms.I have the open face kit and the boom works great .If you need to have a chat ,ya can shove the boom in front of ya teeth ,tho i can get away with it just touching my chin .The good thing about using the half face kit with a full face is ,is that you can swing it outside the helmet when ya not using it. I was sceptivcal at first ,but now its he go , i realise.