To clean iPhone speakers effectively and safely, follow these key steps:

1. Use a soft-bristled brush (like a clean, dry toothbrush or a small paint/makeup brush) to gently brush the speaker grills. Hold the brush at an angle and brush from side to side to dislodge dust and debris without pushing it further inside. Remove any phone cases before cleaning and use a flashlight to see inside the speaker holes.
2. Consider using painter’s tape by wrapping a small piece sticky side down around your finger to roll over the speaker openings and pick up dust without leaving residue.
3. Carefully use a wooden or plastic toothpick only if there is stubborn visible debris, gently inserting and tilting it to flick dirt out. Avoid pressure or sharp objects that could damage the speaker.
4. Use an air blower with gentle bursts to blow out any loosened dust. Avoid canned compressed air as it can be too strong and damage delicate components.

Avoid using liquids, rubbing alcohol, metal tools, or sharp objects like paperclips, which can damage the speakers. Regular cleaning with these gentle methods can improve sound quality by removing buildup and preventing clogging. If sound issues persist after cleaning, it may be a software or hardware problem needing professional repair.