I bought myself my first pair of headphones, and trying to figure out how to use with my iPhone 15.
Bought the USB-C to 3.5mm audio jack, but that obviously didn’t work.
I contacted Sennheiser customer support and their response was “You would need a dongle that plugs into your iphone with a place to plug in your headphones. Apple or Best Buy would be suggestions of where you can look for this product.”
Sorry if this is a dumb question, as I’ve always used the earbuds that came with the iPhone and wanted to upgrade.