I received port plugs to cover the unused slots in my phone. They are small plugs that fit into your phone to protect from dust and small particles. My last phone that I did not even realize had so much dust inside the earphone plug that I could not even use it. I am protected now using the port plugs. Something you really do not think of can make such a difference on your phone.
They earphone plug fits nice and tight. The charger port I have lost one and put another one in and that one seems to be fine. I also keep it in my charger spot. I received these port plugs complimentary in exchange for my unbiased review and opinion. All opinions and words are my own.