I don't use them on my tractor, but I do use active noise cancelling headsets in my aircraft. Previously Bose, several iterations, now Sennheiser S1 digital. This headset would not be suitable for tractor use, I only mention it as "background".
Recently a fellow self-launch soaring pilot recommended using Bose Quiet Comfort 20 earbuds. Now these are not bluetooth, but they are amazingly quiet in terms of blocking outside noise. I compared them to the S1 aviation headset in my Mooney, every bit as quiet - really astonishingly quiet (should be for the cost I guess, but everything Bose is pricey).
The ASH26 is so noisy that with most aviation headsets one still cannot hear the radio. There's also almost no room to store a regular headset after launch - typical engine run is maybe 10 minutes then followed by hours of peace and quiet! But that 10 minutes is leaving a sometimes busy airport, so hearing other traffic is important. The Bose QC 20 is excellent! And should work just as well on the tractor if you don't mind earbuds and plugging it into the phone. So quiet you can enjoy music while you work.
