Lightning to 3.5mm Adapter, [ MFi Certified] MOOU iPhone Headphone Jack Adapter Lightning to Aux Audio Dongle Cable Compatible with iPhone 12/11/11 Pro/iPhone 7/8/X

Q: What is the ring for?

The ring doesn't last well I had it only keyring for about 2 weeks; I'm glad I heard it hit the floor while I was walking. You don't wanna lose the device because the ring snaps when you're not paying attention so I would advise not to use it. Device works fine, just the ring is not good.