Regular cleaning of headphones is essential for clearer sound. We found that the earphones that have been used for a period of time are very susceptible to dust inside, making the sound a bit soft compared to when first purchased. You can use a cotton ball or cotton swab to clean them.
In addition, the headphone material is also different, so when encountering a constantly humid environment, it is prone to mold or bacteria, this also affects some sensitive skin that causes itching. Therefore, the cleaning of the headphones is very important.