Why does your ears hurt ? Most common causes are : 1. Earwax - Your ear makes and naturally gets rid of ear wax. When this process doesn't work well, ear...

Have you ever cleaned your earwax? Have you ever been hospitalized for it?

About Ear Wax, there is always a 50% VS 50% controversy：

Here is the most complete and detailed teaching of Bebird N3 Pro.