You can use a clean, soft, microfiber piece of cloth to wipe the surface and earbuds. However, don’t get the speakers wet or the headphone may develop a problem with the electronics. You can also use a small brush with soft nylon bristles to gently wipe around the ears. This removes any earwax or dirt in the small crevices.
It is important to clean the headphones on a regular basis, especially if you wear them during workouts. Electronics get deteriorated by moisture, and the sweat from your ears can cause bacteria to grow in it. These bacteria can destroy the ear cushions, resulting in them smelling. Moreover, the odor will disturb your audio experience.
To prevent this, you should clean your Bose quietcomfort earbuds regularly with an alcohol-free wet wipe. You can start with the general outer surface, then move to the headband and ear pads, and finally the earcups and connectors. You can also detach the earcups and clean their openings using a safety instrument like a tweezer or a paperclip.
When you are done with this, you should dry the headphones immediately. Make sure to do this with the same cloth that you used to clean them, not another one that could damage it. This is because the damp cloth could still contain residue from the cleaning solution. In addition, you should dry the earcups and connectors to avoid water damage and ensure that they are completely dry before you connect them to your device again.