Bose A20 Aviation Headset replacement magnesium headband. The magnesium construction and unique torsion spring reduces clamping force and distribute the headset’s weight evenly for all-day comfort. Replace your old or broken Bose A20 headband at your convenience, reduce downtime, and save on repair costs. Easy to install OEM A20 parts made by Bose®. Instructions for replacing the headband can be found on our blog [here].
You can also find the Bose A20 replacement electret microphone [here].