Yes.

This is a specially processed sound with a special frequency, which will cause the speaker dust filter to vibrate when played. With the vibration, some fine dust will fall down, which will clear the blocked dust filter of the mobile phone speaker.

Because the dust that blocks the dust filter is very fine, the dust is basically invisible to the naked eye during cleaning. However, after playing the audio for many times, the sound of the mobile phone will be enhanced to a certain extent. Finally, after cleaning, it is best to wipe the speaker position with a wet wipe.

Precautions for cleaning the handset of your mobile phone

If the dust on the handset is not cleaned in time and encounters water-based or oily substances, it will turn into mud-like objects, and over time it will easily turn into solid dust , extremely difficult to clean.

Try not to place your mobile phone in a humid or fuzzy environment. You can put it in your pocket when not in use. This can effectively prevent the surface of the earpiece from becoming dusty and stubborn. If the earpiece comes into contact with glue, paint, etc. Wait, you need to rush to an after-sales or mobile phone repair shop as soon as possible and ask professionals to help disassemble and clean the parts, or replace accessories. This situation is difficult to deal with.

Reference for the above content? People's Daily Online - How to clean mobile phones and headphones?