Using this cleaning tool is a breeze. For small holes and parts, use the metal tip to gently remove debris. To clean the sound hole and other areas, take the soft microfiber brush and lightly sweep over them. When it comes to the charging compartment, use the soft flocking sponge head to wipe it clean. As for precautions, don't use excessive force when cleaning to avoid damaging your earphones. Also, keep the tool away from children to prevent any accidental swallowing. For maintenance, store the tool in a dry place after each use. If it gets dirty, you can gently wash it with mild soap and water, then let it dry completely before using it again.