Go for the 10-13. I've had one for eleven years and it still works great. The earmuffs work great at passively reducing the ambient noise and I could easilly wear it for a 4 hour leg without getting uncomfortable. I actually prefered it in the King Air to noise canceling versions because of the convenience of not having the box getting in my way and the constant need for batteries. If you need a headset for a B1900 though or a King Air running PT6-72s, go noise canceling.