Heat ✅ Subzero temps ✅ Crush resistance ✅ Extended wear ✅ Intense vibration ✅ Bose headsets are TSO-certified and tested for all of the above, plus 140 other factors that could impact pilots during flight. Learn more about TSO certification and Bose headset durability through the link in our bio. #BoseAviation #ProFlightSeries2 #AviationHeadset #FAA