JOKE Headsets? Why. bother? In 10 years she’ll no longer be listening to you anyway! JOKE OVER.
. Hope you find a solution and post what it is. Earplugs or earbuds until.such time as she will accept the headset perhaps?
What is the DB level in your aircraft? Perhaps your aviation Dr. or her Dr can provide insight.
I woluld be more concerned later on as she blasts music from. her Iphone through headphones at DB levels that would stun a rat at 50 paces.