This portable electric lighter is powered by Type-C interface, you can plug it into your cell phone and use it, use your cell phone to power it or use the charging treasure to power it, gently blow it to use it, note that some Samsang cell phones have not yet supported this function!(Please On OTG Setting) this portable electric lighter is powered by Type-C interface, you can plug it into your cell phone and use it, use your cell phone to power it or use the charging treasure to power it, gently blow it to use it, note that some Samsang cell phones have not yet supported this function!(Please On OTG Setting)