On Tuesday, February 5, 2019 at 7:11:51 AM UTC-8, wrote:
What is the best value noise canceling headset for a motor glider.

Since the back seat persons head in only inches from the motor - I want to protect their hearing.

WH

I use the Bose QuietComfort® 20 Acoustic Noise Cancelling® earbuds. That, with a 3.5mm to 4.5mm jack adapter works nicely. For me, earbuds are better than a headset because of limited space to hang / store a headset after climbing out. BTW, they are great on long commercial flights to cancel the engine noise and are comfortable to wear. Craig