Bose A20/A30 Ear Cushions

As a general rule, Bose A20 and Bose A30 headset ear cushions should be replaced every six months or every 300 hours of use, depending on how often you fly.
You may need to replace them more often if you: 

• Have a full beard or heavy whiskers
• Subject the headset to severe temperature extremes such as parking your airplane outside in severe cold or heat
• Put excess strain on the cushions because of improper storage

Indications that the ear cushions need replacing include:

• Flaking of the outer covering
• Cuts or tears
• Flattening of the cushion, reducing the effectiveness of the seal against your head

Ensure the performance and comfort level of your A20 and A30 aviation headset.
Use as a replacement for lost, damaged, or worn ear cushions. Cushions are identical to original set included with new A20 and A30 headset and are made of the same supple, breathable protein leather.