The solution when metal earphone hurt the ear

1. First of all, please confirm whether there is any protrusion on the appearance of the metal ear muffs? if there is , please wipe it on the surface of the earphone
   
2. Please try the big, medium and small silicone case for earphone when you use it, choose the suit silicone case for your ear.
 

    

3. Please make sure the silicone case are fullly into the earphone, avoid the the silicone case skew, the earphone also skew, lead to the metal earphone hurt the ear.

4. You can rotate the earbuds left and right when using earphones, adjust the earphones to a comfortable angle, at the same time, don't force the silicone case to penetrate the ear canal too deep.