Universal in-ear earphones: Once the catheter in the earmuff and the earphones is loose, throw away the earmuff and clean the catheter and replace it with a new earmuff. If either or both sides of the earphones are silent or the volume is smaller, you should replace the filter or clean the catheter with a specified tool. Custom in-ear earphones: Clean the acrylic plastic case with a face tissue paper, and then make sure that the catheter is not blocked by earwax after each use.

 Clean earmuffs and wire when necessary (at least once a month). If you use in-ear earphones regularly, you need to clean the wire and earmuffs more frequently, especially the parts that comes into contact with your skin. In this way, reduce the impact of sebum on wire, and thus ensure the service life of wire.

 Do not use alcohol cleaners or products containing bleaching ingredients. A piece of nylon cloth and a piece of soap is enough.

When cleaning the earmuffs, remove them from the in-ear earphones first. You can lower the earmuff: pinch the earmuff with your thumb and index finger and gently rotate the earmuff from the catheter. Don't pull the earmuffs, which may tear it.