I bought this set of adapters for two reasons :
1. Be able to use my existing wired earbuds (for telephone calls, or listening to music) that have the apple lightning male connection with my new iPhone 16 that has only the female USB-C port
2. Be able to charge my iPhone 16 with the existing male lightning male USB-A cord.
But unfortunately, the audio function (%231) does not work with these adapters. So I am buying separately a female 3.5 mm to male USP-C adapter for audio with a different set of wired earbuds.
Though I don't really need the female USB-C to male lightning adapter, I have confirmed it does work to charge my wireless earbuds and their case.