FWIW, I did some research on the popular ANRs for our company and we ended up getting the Sierras. Pretty much the same as the Zulus, just a little heavier and cost less. What I did find with most of the companies was the Lightspeed was quick to respond, willing to cut us a deal and has great customer service. Ive been using a 15XLC for 6 years now and they are great. However, I think I'll upgrade for the bluetooth. Anywho, I found that Bose didn't have much of an aviation department dedicated to headset support. Others have had success, which is great, but I found in the long term they wouldn't support us like Lightspeed. To me, Bose is a speaker company that makes headsets. Lightspeed is a headset company that makes.... headsets.