A quiet microphone or speaker, on a phone or earbuds is usually due to grease or wax and it may not be visually obvious. It's not a pleasant fact, and it's noth

A quiet microphone or speaker, on a phone or earbuds is usually due to grease or wax and it may not be visually obvious. It's not a pleasant fact, and it's nothing personal it happens to my gear too. There are various ways to clean them depending on the device, google should be able to help.