You can get a Lightning adapter for iPhones. The problem is, I know myself—I will lose the adapter, likely right before a long trip.
I can't keep the adapter plugged into my headphones indefinitely, because then I wouldn't be able to connect them to my other devices (multiple computers, etc).
I can't keep the adapter plugged into my headphones indefinitely, because then I wouldn't be able to connect them to my other devices (multiple computers, etc).