Cool. Thanks much!
They are $5.50 from a seller named everydaysource. I’ve bought three of them so far. All of my friends with iPhones who see mine have to have one. I give them the one in my car and order another. Shipping is free and it takes about 3 days to get one.
The sound is good on both ends. My only complaint is that the wire is just barely long enough to reach my iPhone if it is in my hip holster.