I don't think we've cracked the design yet for no wire between the device and the earphones. I have the Shure BT2 set and I would list my relationship as "I tolerate them". It dangles, and if I wear a coat with a metal zipper it has connection issues when my phone is in my pocket.
I'm not convinced the new separate ones are better. Behind the head may still be the better option, and sliding them down around your neck when you need to be social ticks a lot of checkboxes for me as well.