Sanitizes more than phones. Besides my own smartphone, I have tried sanitizing other items in the PhoneSoap case such as my AirPods, and the PhoneSoap has thoroughly cleaned whatever I could fit into its case. Particularly for those who use earphones on the daily, this is a useful plus as though the chance isn’t exactly high, earbuds left untreated can become potential hosts for fungi that cause ear infections and complications.