I've been looking at the J&M headsets and was wandering what the difference is between the $79 set and the $150 set. I will only use them during cold weather. This is when I use my 3/4 helmet. I use a half helmet when it's warm. Will listen to the radio and chat with the wife on it. Is there really a big difference in the sound quality? etc. Any info on headsets will be appreciated.:?